Federation · USA
United States national best marks
Best marks by United States athletes in each event, compiled from the all-time lists we import. Derived national bests — not official national records (see note below).
500
Stored marks
97
Distinct marks shown
Men's 400m
Derived 14 Sep 2026
| # | Athlete | Mark | Date | Venue | Age |
|---|---|---|---|---|---|
| 1 | Michael Johnson | 43.18 | 26 Aug 1999 | — | 31 |
| 2 | Butch Reynolds | 43.29 | 17 Aug 1988 | — | 24 |
| 3 | Michael Johnson | 43.39 | 9 Aug 1995 | — | 27 |
| 4 | Quincy Hall | 43.40 | 7 Aug 2024 | — | 26 |
| 5 | Michael Johnson | 43.44 | 19 Jun 1996 | — | 28 |
| 6 | Jeremy Wariner | 43.45 | 31 Aug 2007 | — | 23 |
| 6= | Michael Norman | 43.45 | 20 Apr 2019 | — | 21 |
| 8 | Michael Johnson | 43.49 | 29 Jul 1996 | — | 28 |
| 9 | Quincy Watts | 43.50 | 5 Aug 1992 | — | 22 |
| 9= | Jeremy Wariner | 43.50 | 7 Aug 2007 | — | 23 |
| 11 | Michael Norman | 43.56 | 25 Jun 2022 | — | 24 |
| 12 | Michael Norman | 43.60 | 28 May 2022 | — | 24 |
| 13 | Michael Norman | 43.61 | 8 Jun 2018 | — | 20 |
| 14 | Jeremy Wariner | 43.62 | 14 Jul 2006 | — | 22 |
| 15 | Fred Kerley | 43.64 | 27 Jul 2019 | — | 24 |
| 16 | Michael Johnson | 43.65 | 17 Aug 1993 | — | 25 |
| 16= | LaShawn Merritt | 43.65 | 26 Aug 2015 | — | 29 |
| 18 | Michael Johnson | 43.66 | 16 Jun 1995 | — | 27 |
| 18= | Michael Johnson | 43.66 | 3 Jul 1996 | — | 28 |
| 20 | Michael Johnson | 43.68 | 12 Aug 1998 | — | 30 |
| 20= | Michael Johnson | 43.68 | 16 Jul 2000 | — | 32 |
| 22 | Fred Kerley | 43.70 | 26 May 2017 | — | 22 |
| 22= | Champion Allison | 43.70 | 25 Jun 2022 | — | 23 |
| 24 | Quincy Watts | 43.71 | 3 Aug 1992 | — | 22 |
| 25 | Michael Johnson | 43.74 | 19 Jun 1993 | — | 25 |
| 25= | LaShawn Merritt | 43.74 | 13 Aug 2013 | — | 27 |
| 27 | Michael Johnson | 43.75 | 19 Apr 1997 | — | 29 |
| 27= | LaShawn Merritt | 43.75 | 21 Aug 2008 | — | 22 |
| 29 | Michael Johnson | 43.76 | 21 Jul 1998 | — | 30 |
| 30 | Jacory Patterson | 43.78 | 4 Sep 2026 | — | 26 |
| 31 | Michael Norman | 43.79 | 27 Jul 2019 | — | 21 |
| 32 | Quincy Hall | 43.80 | 12 Jul 2024 | — | 25 |
| 33 | Danny Everett | 43.81 | 26 Jun 1992 | — | 25 |
| 34 | Jeremy Wariner | 43.82 | 29 Aug 2008 | — | 24 |
| 35 | Quincy Watts | 43.83 | 19 Aug 1992 | — | 22 |
| 35= | Rai Benjamin | 43.83 | 23 Aug 2026 | — | 29 |
| 37 | Michael Johnson | 43.84 | 25 Sep 2000 | — | 33 |
| 38 | LaShawn Merritt | 43.85 | 14 Aug 2016 | — | 30 |
| 38= | Randolph Ross | 43.85 | 11 Jun 2021 | — | — |
| 38= | Jacory Patterson | 43.85 | 28 Aug 2025 | — | 25 |
| 41 | Lee Evans | 43.86 | 18 Oct 1968 | — | 21 |
| 41= | Michael Johnson | 43.86 | 21 Jul 1995 | — | 27 |
| 41= | Jeremy Wariner | 43.86 | 18 Jul 2008 | — | 24 |
| 44 | Steve Lewis | 43.87 | 28 Sep 1988 | — | 19 |
| 45 | Michael Johnson | 43.88 | 16 Aug 1995 | — | 27 |
| 46 | Michael Johnson | 43.90 | 6 Sep 1994 | — | 26 |
| 46= | Jacory Patterson | 43.90 | 14 Sep 2025 | — | 25 |
| 48 | Butch Reynolds | 43.91 | 19 Jun 1996 | — | 32 |
| 48= | Jeremy Wariner | 43.91 | 8 Jul 2006 | — | 22 |
| 48= | Khaleb McRae | 43.91 | 22 Jun 2025 | — | — |
| 51 | Michael Johnson | 43.92 | 2 Jul 1999 | — | 31 |
| 51= | Michael Johnson | 43.92 | 24 Jun 2000 | — | 32 |
| 51= | LaShawn Merritt | 43.92 | 3 Jul 2014 | — | 28 |
| 51= | Jonathan Simms | 43.92 | 12 Jun 2026 | — | — |
| 55 | Butch Reynolds | 43.93 | 20 Jul 1988 | — | 24 |
| 55= | Butch Reynolds | 43.93 | 28 Sep 1988 | — | 24 |
| 55= | Jeremy Wariner | 43.93 | 12 Aug 2005 | — | 21 |
| 58 | Michael Johnson | 43.94 | 27 Aug 1993 | — | 25 |
| 59 | Michael Johnson | 43.95 | 24 Aug 1999 | — | 31 |
| 59= | Quincy Hall | 43.95 | 6 Aug 2024 | — | 26 |
| 61 | Michael Johnson | 43.96 | 8 Aug 1998 | — | 30 |
| 61= | LaShawn Merritt | 43.96 | 31 Aug 2007 | — | 21 |
| 61= | Jacory Patterson | 43.96 | 10 Jul 2026 | — | 26 |
| 64 | Larry James | 43.97 | 18 Oct 1968 | — | — |
| 64= | Quincy Watts | 43.97 | 24 Jun 1992 | — | 22 |
| 64= | LaShawn Merritt | 43.97 | 31 May 2014 | — | 27 |
| 64= | LaShawn Merritt | 43.97 | 3 Jul 2016 | — | 30 |
| 64= | Christopher Bailey | 43.97 | 4 Sep 2026 | — | — |
| 69 | Danny Everett | 43.98 | 20 Jul 1988 | — | 21 |
| 69= | Michael Johnson | 43.98 | 10 Jul 1992 | — | 24 |
| 69= | Jeremy Wariner | 43.98 | 6 Jun 2008 | — | 24 |
| 69= | LaShawn Merritt | 43.98 | 2 Sep 2008 | — | 22 |
| 69= | Jacory Patterson | 43.98 | 3 May 2025 | — | 25 |
| 74 | Jeremy Wariner | 43.99 | 28 Jul 2006 | — | 22 |
| 74= | Justin Braun | 43.99 | 29 May 2026 | — | — |
| 76 | Quincy Watts | 44.00 | 6 Jun 1992 | — | 21 |
| 76= | Jeremy Wariner | 44.00 | 23 Aug 2004 | — | 20 |
| 76= | LaShawn Merritt | 44.00 | 3 Jul 2008 | — | 22 |
| 79 | Jeremy Wariner | 44.02 | 25 Jul 2006 | — | 22 |
| 79= | Jeremy Wariner | 44.02 | 9 Sep 2006 | — | 22 |
| 79= | Jeremy Wariner | 44.02 | 5 May 2007 | — | 23 |
| 79= | Jeremy Wariner | 44.02 | 28 Sep 2007 | — | 23 |
| 79= | Jonathan Simms | 44.02 | 2 May 2026 | — | — |
| 79= | Quincy Wilson | 44.02 | 6 Aug 2026 | — | — |
| 85 | LaShawn Merritt | 44.03 | 1 Jun 2008 | — | 21 |
| 85= | Fred Kerley | 44.03 | 24 Jun 2017 | — | 22 |
| 85= | Michael Cherry | 44.03 | 3 Sep 2021 | — | — |
| 88 | Michael Johnson | 44.04 | 30 Aug 1994 | — | 26 |
| 88= | Michael Norman | 44.04 | 26 Jul 2019 | — | 21 |
| 90 | Angelo Taylor | 44.05 | 23 Jun 2007 | — | 28 |
| 90= | Jeremy Wariner | 44.05 | 3 Aug 2007 | — | 23 |
| 90= | Jeremy Wariner | 44.05 | 16 Sep 2007 | — | 23 |
| 90= | Jacory Patterson | 44.05 | 22 Aug 2025 | — | 25 |
| 90= | Rai Benjamin | 44.05 | 18 Jul 2026 | — | 28 |
| 95 | Lee Evans | 44.06 | 14 Sep 1968 | — | 21 |
| 95= | Danny Everett | 44.06 | 30 May 1990 | — | 23 |
| 95= | Michael Johnson | 44.06 | 28 Aug 1998 | — | 30 |
| 95= | LaShawn Merritt | 44.06 | 23 Jun 2007 | — | 20 |
| 95= | LaShawn Merritt | 44.06 | 21 Aug 2009 | — | 23 |
| 95= | Christopher Bailey | 44.06 | 28 Jun 2026 | — | — |
| 101 | Michael Johnson | 44.07 | 25 Aug 2000 | — | 32 |
| 101= | Jeremy Wariner | 44.07 | 1 Jun 2008 | — | 24 |
| 101= | Michael Norman | 44.07 | 20 Jun 2021 | — | 23 |
| 104 | Steve Lewis | 44.08 | 26 Jun 1992 | — | 23 |
| 104= | Butch Reynolds | 44.08 | 2 Jul 1997 | — | 33 |
| 106 | Danny Everett | 44.09 | 28 Sep 1988 | — | 21 |
| 106= | Alvin Harrison | 44.09 | 19 Jun 1996 | — | — |
| 106= | Jerome Young | 44.09 | 21 Jun 1998 | — | — |
| 106= | LaShawn Merritt | 44.09 | 6 Jul 2013 | — | 27 |
| 106= | Fred Kerley | 44.09 | 12 May 2017 | — | 22 |
| 106= | Fred Kerley | 44.09 | 26 Jul 2019 | — | 24 |
| 112 | Butch Reynolds | 44.10 | 3 May 1987 | — | 22 |
| 112= | Fred Kerley | 44.10 | 9 Jun 2017 | — | 22 |
| 112= | Vernon Norwood | 44.10 | 20 Jul 2024 | — | — |
| 112= | Michael Norman | 44.10 | 4 Aug 2024 | — | 26 |
| 112= | Quincy Wilson | 44.10 | 12 Jul 2025 | — | — |
| 117 | Steve Lewis | 44.11 | 18 Jul 1988 | — | 19 |
| 117= | Fred Kerley | 44.11 | 23 Jun 2017 | — | 22 |
| 117= | Michael Norman | 44.11 | 6 Aug 2022 | — | 24 |
| 117= | Jacory Patterson | 44.11 | 31 May 2026 | — | 26 |
| 117= | Rai Benjamin | 44.11 | 4 Jul 2026 | — | 28 |
| 122 | Butch Reynolds | 44.12 | 19 Jun 1993 | — | 29 |
| 122= | Michael Johnson | 44.12 | 5 Aug 1997 | — | 29 |
| 122= | Jeremy Wariner | 44.12 | 22 Apr 2006 | — | 22 |
| 122= | LaShawn Merritt | 44.12 | 19 Aug 2008 | — | 22 |
| 122= | LaShawn Merritt | 44.12 | 24 Jun 2012 | — | 25 |
| 122= | Jordan Pierre | 44.12 | 16 May 2026 | — | — |
| 128 | Butch Reynolds | 44.13 | 6 Jun 1987 | — | 22 |
| 128= | Quincy Watts | 44.13 | 28 Jul 1993 | — | 23 |
| 128= | Butch Reynolds | 44.13 | 17 Aug 1993 | — | 29 |
| 128= | Derek Mills | 44.13 | 4 Jun 1995 | — | — |
| 128= | Jeremy Wariner | 44.13 | 19 Aug 2010 | — | 26 |
| 128= | LaShawn Merritt | 44.13 | 29 Aug 2013 | — | 27 |
| 128= | Randolph Ross | 44.13 | 10 Jun 2022 | — | — |
| 128= | Rai Benjamin | 44.13 | 10 Jul 2026 | — | 28 |
| 136 | LaShawn Merritt | 44.14 | 9 Sep 2006 | — | 20 |
| 136= | LaShawn Merritt | 44.14 | 17 May 2014 | — | 27 |
| 138 | Butch Reynolds | 44.15 | 10 Jul 1987 | — | 23 |
| 138= | Anthuan Maybank | 44.15 | 3 Jul 1996 | — | — |
| 138= | Jeremy Wariner | 44.15 | 19 Aug 2008 | — | 24 |
| 138= | Chris Robinson | 44.15 | 19 Apr 2025 | — | — |
| 138= | Christopher Bailey | 44.15 | 5 Jul 2025 | — | — |
| 143 | Otis Harris | 44.16 | 23 Aug 2004 | — | — |
| 143= | LaShawn Merritt | 44.16 | 17 Jun 2014 | — | 27 |
| 143= | Jacory Patterson | 44.16 | 2 Aug 2025 | — | 25 |
| 143= | Khaleb McRae | 44.16 | 12 Aug 2025 | — | — |
| 143= | Jonathan Simms | 44.16 | 16 May 2026 | — | — |
| 148 | Michael Johnson | 44.17 | 10 Jul 1991 | — | 23 |
| 148= | Fred Kerley | 44.17 | 4 Oct 2019 | — | 24 |
| 148= | Quincy Hall | 44.17 | 24 Jun 2024 | — | 25 |
| 148= | Christopher Bailey | 44.17 | 3 May 2025 | — | — |
| 152 | Anthuan Maybank | 44.18 | 14 Aug 1996 | — | — |
| 152= | Alvin Harrison | 44.18 | 8 Sep 2000 | — | — |
| 152= | LaShawn Merritt | 44.18 | 3 Sep 2015 | — | 29 |
| 155 | Larry James | 44.19 | 14 Sep 1968 | — | — |
| 155= | Jerome Young | 44.19 | 23 May 1998 | — | — |
| 155= | Alvin Harrison | 44.19 | 12 Aug 1998 | — | — |
| 155= | LaShawn Merritt | 44.19 | 11 May 2012 | — | 25 |
| 155= | LaShawn Merritt | 44.19 | 14 Jun 2014 | — | 27 |
| 155= | Jacory Patterson | 44.19 | 16 Sep 2025 | — | 25 |
| 161 | Danny Everett | 44.20 | 17 Aug 1988 | — | 21 |
| 161= | Jeremy Wariner | 44.20 | 25 Jun 2005 | — | 21 |
| 161= | Jeremy Wariner | 44.20 | 18 Aug 2006 | — | 22 |
| 161= | Jeremy Wariner | 44.20 | 3 Jul 2008 | — | 24 |
| 161= | Quincy Wilson | 44.20 | 19 Jul 2024 | — | — |
| 161= | Sidi Njie | 44.20 | 12 Jun 2026 | — | — |
| 167 | Michael Johnson | 44.21 | 9 Sep 1990 | — | 22 |
| 167= | Steve Lewis | 44.21 | 5 Aug 1992 | — | 23 |
| 167= | LaShawn Merritt | 44.21 | 28 Aug 2009 | — | 23 |
| 167= | LaShawn Merritt | 44.21 | 22 Jun 2013 | — | 26 |
| 167= | LaShawn Merritt | 44.21 | 13 Aug 2016 | — | 30 |
| 167= | Michael Cherry | 44.21 | 5 Aug 2021 | — | — |
| 167= | Rai Benjamin | 44.21 | 8 Apr 2023 | — | 25 |
| 167= | Michael Norman | 44.21 | 4 May 2024 | — | 26 |
| 175 | Michael Johnson | 44.22 | 8 Sep 1991 | — | 23 |
| 175= | Quincy Watts | 44.22 | 26 Jun 1992 | — | 22 |
| 175= | Michael Johnson | 44.22 | 4 Aug 1993 | — | 25 |
| 175= | Butch Reynolds | 44.22 | 9 Aug 1995 | — | 31 |
| 175= | Jeremy Wariner | 44.22 | 4 Sep 2010 | — | 26 |
| 175= | LaShawn Merritt | 44.22 | 29 Apr 2016 | — | 29 |
| 175= | Gil Roberts | 44.22 | 24 Jun 2017 | — | — |
| 175= | Bryce Deadmon | 44.22 | 8 Jul 2023 | — | — |
| 175= | Quincy Hall | 44.22 | 6 Jun 2025 | — | 26 |
| 184 | Michael Johnson | 44.23 | 11 Apr 1992 | — | 24 |
| 184= | LaShawn Merritt | 44.23 | 3 Aug 2007 | — | 21 |
| 184= | Kahmari Montgomery | 44.23 | 7 Jun 2019 | — | — |
| 184= | Randolph Ross | 44.23 | 27 May 2022 | — | — |
| 184= | Bryce Deadmon | 44.23 | 19 Jul 2024 | — | — |
| 189 | Quincy Watts | 44.24 | 19 Jun 1993 | — | 23 |
| 189= | Butch Reynolds | 44.24 | 21 Jul 1995 | — | 31 |
| 189= | Tony McQuay | 44.24 | 2 Jul 2016 | — | — |
| 189= | Sidi Njie | 44.24 | 29 May 2026 | — | — |
| 193 | Michael Johnson | 44.25 | 19 Aug 1990 | — | 22 |
| 193= | Michael Johnson | 44.25 | 6 May 1995 | — | 27 |
| 193= | Alvin Harrison | 44.25 | 23 Sep 2000 | — | — |
| 193= | Trevor Stewart | 44.25 | 7 Jun 2019 | — | — |
| 193= | Fred Kerley | 44.25 | 2 Oct 2019 | — | 24 |
| 193= | Ryan Willie | 44.25 | 9 Jun 2023 | — | — |
| 193= | Khaleb McRae | 44.25 | 14 Sep 2025 | — | — |
| 193= | Jacory Patterson | 44.25 | 18 Jul 2026 | — | 26 |
| 201 | Steve Lewis | 44.26 | 17 Aug 1988 | — | 19 |
| 201= | Alvin Harrison | 44.26 | 16 Mar 1998 | — | — |
| 201= | Jeremy Wariner | 44.26 | 3 Sep 2006 | — | 22 |
| 201= | Michael Norman | 44.26 | 6 Sep 2019 | — | 21 |
| 201= | Vernon Norwood | 44.26 | 22 Aug 2023 | — | — |
| 201= | Michael Norman | 44.26 | 6 Aug 2024 | — | 26 |
| 207 | Alonzo Babers | 44.27 | 8 Aug 1984 | — | — |
| 207= | Antonio Pettigrew | 44.27 | 17 Jun 1989 | — | — |
| 207= | Michael Johnson | 44.27 | 12 Jul 1990 | — | 22 |
| 207= | Steve Lewis | 44.27 | 21 Jul 1992 | — | 23 |
| 207= | Darold Williamson | 44.27 | 10 Jun 2005 | — | — |
| 207= | Michael Norman | 44.27 | 28 May 2021 | — | 23 |
| 207= | Ryan Willie | 44.27 | 13 May 2023 | — | — |
| 207= | Jacory Patterson | 44.27 | 19 Apr 2025 | — | 25 |
| 207= | Christopher Bailey | 44.27 | 26 Apr 2025 | — | — |
| 216 | Andrew Valmon | 44.28 | 19 Jun 1993 | — | — |
| 216= | Michael Johnson | 44.28 | 25 Aug 1998 | — | 30 |
| 216= | Tyree Washington | 44.28 | 12 May 2001 | — | — |
| 216= | Michael Cherry | 44.28 | 16 Apr 2022 | — | — |
| 216= | Michael Norman | 44.28 | 24 Jun 2022 | — | 24 |
| 216= | Quincy Hall | 44.28 | 4 Aug 2024 | — | 26 |
| 222 | Michael Johnson | 44.29 | 23 Aug 1996 | — | 28 |
| 222= | Tyree Washington | 44.29 | 8 Aug 1998 | — | — |
| 222= | Derrick Brew | 44.29 | 16 May 1999 | — | — |
| 222= | Jeremy Wariner | 44.29 | 25 Aug 2006 | — | 22 |
| 222= | Jeremy Wariner | 44.29 | 22 Jul 2008 | — | 24 |
| 222= | Nathan Strother | 44.29 | 27 Jul 2019 | — | — |
| 222= | Champion Allison | 44.29 | 8 Jun 2022 | — | 23 |
| 222= | Michael Norman | 44.29 | 22 Jul 2022 | — | 24 |
| 222= | Jayden Davis | 44.29 | 18 Apr 2026 | — | — |
| 231 | Butch Reynolds | 44.30 | 20 Aug 1989 | — | 25 |
| 231= | LaMont Smith | 44.30 | 19 Jun 1996 | — | — |
| 231= | LaShawn Merritt | 44.30 | 6 Jul 2014 | — | 28 |
| 231= | LaShawn Merritt | 44.30 | 18 Jul 2014 | — | 28 |
| 231= | Fred Kerley | 44.30 | 13 May 2017 | — | 22 |
| 231= | Noah Williams | 44.30 | 24 Apr 2021 | — | — |
| 231= | Michael Norman | 44.30 | 20 Jul 2022 | — | 24 |
| 231= | Bryce Deadmon | 44.30 | 12 Apr 2025 | — | — |
| 239 | Butch Reynolds | 44.31 | 16 Aug 1989 | — | 25 |
| 239= | Michael Johnson | 44.31 | 13 Aug 1997 | — | 29 |
| 239= | Jeremy Wariner | 44.31 | 2 Jun 2006 | — | 22 |
| 239= | LaShawn Merritt | 44.31 | 29 Aug 2007 | — | 21 |
| 239= | Rai Benjamin | 44.31 | 20 Apr 2019 | — | 21 |
| 239= | Michael Norman | 44.31 | 5 Aug 2021 | — | 23 |
| 239= | Christopher Bailey | 44.31 | 6 Aug 2024 | — | — |
| 239= | Jacory Patterson | 44.31 | 5 Jul 2025 | — | 25 |
| 247 | Danny Everett | 44.32 | 18 Jul 1988 | — | 21 |
| 247= | Butch Reynolds | 44.32 | 10 Aug 1989 | — | 25 |
| 247= | Michael Johnson | 44.32 | 13 Aug 1994 | — | 26 |
| 247= | Angelo Taylor | 44.32 | 31 Aug 2007 | — | 28 |
| 247= | LaShawn Merritt | 44.32 | 1 Jun 2013 | — | 26 |
| 252 | Butch Reynolds | 44.33 | 26 Sep 1988 | — | 24 |
| 252= | Butch Reynolds | 44.33 | 18 May 1996 | — | 31 |
| 252= | Tyree Washington | 44.33 | 21 Jun 2003 | — | — |
| 252= | Gil Roberts | 44.33 | 23 Jun 2017 | — | — |
| 252= | Fred Kerley | 44.33 | 31 May 2018 | — | 23 |
| 257 | Danny Everett | 44.34 | 22 May 1988 | — | 21 |
| 257= | Darnell Hall | 44.34 | 5 Jul 1995 | — | — |
| 257= | LaShawn Merritt | 44.34 | 18 Aug 2006 | — | 20 |
| 257= | Jeremy Wariner | 44.34 | 29 Aug 2007 | — | 23 |
| 257= | LaShawn Merritt | 44.34 | 1 May 2008 | — | 21 |
| 257= | LaShawn Merritt | 44.34 | 24 Aug 2015 | — | 29 |
| 257= | Nathan Strother | 44.34 | 13 May 2018 | — | — |
| 257= | Elija Godwin | 44.34 | 25 Jun 2022 | — | — |
| 257= | Vernon Norwood | 44.34 | 12 Jul 2024 | — | — |
| 257= | Christopher Bailey | 44.34 | 4 Apr 2025 | — | — |
| 257= | Vernon Norwood | 44.34 | 19 Jul 2025 | — | — |
| 257= | Bryce Deadmon | 44.34 | 1 Aug 2025 | — | — |
| 269 | Steve Lewis | 44.35 | 26 Sep 1988 | — | 19 |
| 269= | Andrew Valmon | 44.35 | 10 Aug 1990 | — | — |
| 269= | Danny Everett | 44.35 | 12 Aug 1990 | — | 23 |
| 269= | Andrew Rock | 44.35 | 12 Aug 2005 | — | — |
| 269= | Angelo Taylor | 44.35 | 12 May 2007 | — | 28 |
| 269= | LaShawn Merritt | 44.35 | 18 Jul 2008 | — | 22 |
| 269= | LaShawn Merritt | 44.35 | 28 Aug 2011 | — | 25 |
| 269= | Michael Cherry | 44.35 | 20 Jun 2021 | — | — |
| 269= | Vernon Norwood | 44.35 | 25 Jun 2022 | — | — |
| 269= | Jonathan Simms | 44.35 | 29 May 2026 | — | — |
| 269= | Christopher Bailey | 44.35 | 6 Jun 2026 | — | — |
| 280 | Danny Everett | 44.36 | 26 Sep 1988 | — | 21 |
| 280= | Danny Everett | 44.36 | 16 Aug 1989 | — | 22 |
| 280= | Antonio Pettigrew | 44.36 | 15 Jun 1991 | — | — |
| 280= | Michael Johnson | 44.36 | 1 Jun 1992 | — | 24 |
| 280= | Jeremy Wariner | 44.36 | 11 Jul 2008 | — | 24 |
| 280= | LaShawn Merritt | 44.36 | 21 Jun 2013 | — | 26 |
| 280= | LaShawn Merritt | 44.36 | 28 Aug 2014 | — | 28 |
| 280= | LaShawn Merritt | 44.36 | 12 Jul 2015 | — | 29 |
| 280= | Fred Kerley | 44.36 | 9 Jun 2018 | — | 23 |
| 289 | Steve Lewis | 44.37 | 20 Jul 1988 | — | 19 |
| 289= | Butch Reynolds | 44.37 | 25 Jun 1993 | — | 29 |
| 289= | Darnell Hall | 44.37 | 4 Jun 1995 | — | — |
| 289= | Michael Johnson | 44.37 | 4 Aug 1997 | — | 29 |
| 289= | Jeremy Wariner | 44.37 | 15 Jul 2004 | — | 20 |
| 289= | LaShawn Merritt | 44.37 | 11 Jul 2008 | — | 22 |
| 289= | LaShawn Merritt | 44.37 | 19 Aug 2009 | — | 23 |
| 289= | Noah Williams | 44.37 | 15 May 2021 | — | — |
| 289= | Michael Cherry | 44.37 | 18 May 2021 | — | — |
| 289= | Quincy Hall | 44.37 | 24 Aug 2023 | — | 25 |
| 289= | Bryce Deadmon | 44.37 | 22 Aug 2024 | — | — |
| 289= | Jacory Patterson | 44.37 | 25 May 2025 | — | 25 |
| 301 | Michael Johnson | 44.38 | 21 May 1993 | — | 25 |
| 301= | Tyree Washington | 44.38 | 13 Aug 1997 | — | — |
| 301= | Tyree Washington | 44.38 | 21 Jun 1998 | — | — |
| 301= | LaShawn Merritt | 44.38 | 25 Jul 2007 | — | 21 |
| 301= | Angelo Taylor | 44.38 | 2 Sep 2008 | — | 29 |
| 301= | Trevor Stewart | 44.38 | 4 May 2019 | — | — |
| 301= | Patrick Blake Leeper | 44.38 | 26 Jul 2019 | — | — |
| 301= | Quincy Hall | 44.38 | 2 Sep 2023 | — | 25 |
| 301= | Michael Danzi | 44.38 | 17 May 2025 | — | — |
| 310 | Michael Johnson | 44.39 | 16 Aug 1993 | — | 25 |
| 310= | Tyree Washington | 44.39 | 5 Aug 1997 | — | — |
| 310= | LaShawn Merritt | 44.39 | 28 May 2016 | — | 29 |
| 310= | Vernon Norwood | 44.39 | 8 Jul 2023 | — | — |
| 310= | Vernon Norwood | 44.39 | 24 Aug 2023 | — | — |
| 310= | Bryce Deadmon | 44.39 | 12 Jul 2025 | — | — |
| 310= | Christopher Bailey | 44.39 | 25 Jul 2026 | — | — |
| 317 | Fred Newhouse | 44.40 | 29 Jul 1976 | — | — |
| 317= | Danny Everett | 44.40 | 24 Jun 1988 | — | 21 |
| 317= | Danny Everett | 44.40 | 15 Aug 1990 | — | 23 |
| 317= | Michael Johnson | 44.40 | 14 Jul 1998 | — | 30 |
| 317= | Alvin Harrison | 44.40 | 25 Sep 2000 | — | — |
| 317= | Tony McQuay | 44.40 | 13 Aug 2013 | — | — |
| 317= | Michael Norman | 44.40 | 13 May 2018 | — | 20 |
| 317= | Vernon Norwood | 44.40 | 27 Jul 2019 | — | — |
| 317= | Michael Norman | 44.40 | 9 May 2021 | — | 23 |
| 317= | Bryce Deadmon | 44.40 | 23 Jul 2023 | — | — |
| 317= | Khaleb McRae | 44.40 | 31 May 2026 | — | — |
| 328 | Ronald Freeman | 44.41 | 18 Oct 1968 | — | — |
| 328= | Steve Lewis | 44.41 | 25 Sep 1988 | — | 19 |
| 328= | Michael Johnson | 44.41 | 27 Apr 1996 | — | 28 |
| 328= | David Verburg | 44.41 | 26 Jun 2015 | — | — |
| 328= | LaShawn Merritt | 44.41 | 6 May 2016 | — | 29 |
| 328= | Michael Cherry | 44.41 | 9 Sep 2021 | — | — |
| 328= | Champion Allison | 44.41 | 10 Jun 2022 | — | 23 |
| 328= | Quincy Hall | 44.41 | 8 Jul 2023 | — | 24 |
| 328= | Bryce Deadmon | 44.41 | 20 Apr 2024 | — | — |
| 328= | Michael Norman | 44.41 | 24 Jun 2024 | — | 26 |
| 328= | Jacory Patterson | 44.41 | 28 Mar 2026 | — | 26 |
| 328= | Khaleb McRae | 44.41 | 25 Jul 2026 | — | — |
| 328= | Jacory Patterson | 44.41 | 23 Aug 2026 | — | 26 |
| 341 | Butch Reynolds | 44.42 | 14 Aug 1987 | — | 23 |
| 341= | Danny Everett | 44.42 | 7 Aug 1991 | — | 24 |
| 341= | Butch Reynolds | 44.42 | 16 Jun 1995 | — | 31 |
| 341= | Tyree Washington | 44.42 | 12 Aug 1998 | — | — |
| 341= | Tyree Washington | 44.42 | 11 Jul 2003 | — | — |
| 341= | Derrick Brew | 44.42 | 23 Aug 2004 | — | — |
| 341= | Jeremy Wariner | 44.42 | 18 May 2008 | — | 24 |
| 341= | Patrick Blake Leeper | 44.42 | 4 Jun 2018 | — | — |
| 341= | Rai Benjamin | 44.42 | 20 Apr 2024 | — | 26 |
| 341= | Christopher Bailey | 44.42 | 31 May 2024 | — | — |
| 341= | Quincy Hall | 44.42 | 23 Jun 2024 | — | 25 |
| 341= | Christopher Bailey | 44.42 | 24 Jun 2024 | — | — |
| 353 | Butch Reynolds | 44.43 | 4 Jun 1987 | — | 22 |
| 353= | Andrew Valmon | 44.43 | 15 Aug 1990 | — | — |
| 353= | Quincy Watts | 44.43 | 9 May 1992 | — | 21 |
| 353= | Antonio Pettigrew | 44.43 | 18 Jun 1994 | — | — |
| 353= | Alvin Harrison | 44.43 | 17 Jun 1996 | — | — |
| 353= | Tyree Washington | 44.43 | 31 May 1998 | — | — |
| 353= | Tyree Washington | 44.43 | 21 Jul 1998 | — | — |
| 353= | Jeremy Wariner | 44.43 | 26 May 2007 | — | 23 |
| 353= | Jeremy Wariner | 44.43 | 19 Sep 2007 | — | 23 |
| 353= | LaShawn Merritt | 44.43 | 29 Aug 2008 | — | 22 |
| 353= | LaShawn Merritt | 44.43 | 7 Jul 2015 | — | 29 |
| 353= | David Verburg | 44.43 | 23 Aug 2015 | — | — |
| 353= | Paul Dedewo | 44.43 | 21 Jul 2018 | — | — |
| 353= | Randolph Ross | 44.43 | 8 Jun 2022 | — | — |
| 353= | Vernon Norwood | 44.43 | 7 Jul 2023 | — | — |
| 353= | Quincy Hall | 44.43 | 22 Aug 2023 | — | 25 |
| 353= | Christopher Bailey | 44.43 | 2 Aug 2025 | — | — |
| 370 | LaShawn Merritt | 44.44 | 22 Jun 2007 | — | 20 |
| 370= | LaShawn Merritt | 44.44 | 13 Jul 2007 | — | 21 |
| 370= | Jeremy Wariner | 44.44 | 5 Sep 2008 | — | 24 |
| 370= | LaShawn Merritt | 44.44 | 25 Apr 2014 | — | 27 |
| 370= | LaShawn Merritt | 44.44 | 9 May 2014 | — | 27 |
| 370= | Vernon Norwood | 44.44 | 18 Apr 2015 | — | — |
| 370= | Bryce Deadmon | 44.44 | 11 Jun 2021 | — | — |
| 370= | Michael Cherry | 44.44 | 2 Aug 2021 | — | — |
| 370= | Quincy Hall | 44.44 | 16 Sep 2023 | — | 25 |
| 370= | Bryce Deadmon | 44.44 | 23 Jun 2024 | — | — |
| 370= | Jacory Patterson | 44.44 | 19 Jul 2025 | — | 25 |
| 381 | Ronald Ray | 44.45 | 18 Oct 1975 | — | — |
| 381= | Darrell Robinson | 44.45 | 17 May 1986 | — | — |
| 381= | Steve Lewis | 44.45 | 18 Apr 1992 | — | 22 |
| 381= | Antonio Pettigrew | 44.45 | 19 Jun 1993 | — | — |
| 381= | Michael Johnson | 44.45 | 3 Sep 1993 | — | 25 |
| 381= | Butch Reynolds | 44.45 | 24 Jun 1997 | — | 33 |
| 381= | Leonard Byrd | 44.45 | 5 May 2002 | — | — |
| 381= | Andrew Rock | 44.45 | 24 Jun 2006 | — | — |
| 381= | Angelo Taylor | 44.45 | 29 Aug 2007 | — | 28 |
| 381= | Khaleb McRae | 44.45 | 5 Jul 2025 | — | — |
| 381= | Demarius Smith | 44.45 | 1 Aug 2025 | — | — |
| 381= | Khaleb McRae | 44.45 | 2 Aug 2025 | — | — |
| 381= | Vernon Norwood | 44.45 | 28 Aug 2025 | — | — |
| 381= | Justin Robinson | 44.45 | 12 Jul 2026 | — | — |
| 395 | Butch Reynolds | 44.46 | 26 Jun 1987 | — | 23 |
| 395= | Butch Reynolds | 44.46 | 27 Jun 1987 | — | 23 |
| 395= | Butch Reynolds | 44.46 | 25 Sep 1988 | — | 24 |
| 395= | Quincy Watts | 44.46 | 18 Apr 1992 | — | 21 |
| 395= | Michael Johnson | 44.46 | 3 Sep 2000 | — | 32 |
| 395= | Fred Kerley | 44.46 | 6 Sep 2019 | — | 24 |
| 395= | Vernon Norwood | 44.46 | 23 Jul 2023 | — | — |
| 402 | Michael Franks | 44.47 | 5 Oct 1985 | — | — |
| 402= | Darrell Robinson | 44.47 | 21 Jun 1986 | — | — |
| 402= | Danny Everett | 44.47 | 6 Jun 1987 | — | 20 |
| 402= | Steve Lewis | 44.47 | 27 Jun 1989 | — | 20 |
| 402= | Steve Lewis | 44.47 | 22 Jul 1989 | — | 20 |
| 402= | Derek Mills | 44.47 | 5 Jul 1995 | — | — |
| 402= | Tyree Washington | 44.47 | 22 Apr 2001 | — | — |
| 402= | Wilbert London | 44.47 | 24 Jun 2017 | — | — |
| 402= | Vernon Norwood | 44.47 | 6 Jul 2017 | — | — |
| 402= | Bryce Deadmon | 44.47 | 8 Sep 2022 | — | — |
| 402= | Justin Robinson | 44.47 | 8 Jul 2023 | — | — |
| 402= | Vernon Norwood | 44.47 | 24 Jun 2024 | — | — |
| 402= | Khaleb McRae | 44.47 | 1 Aug 2025 | — | — |
| 402= | Vernon Norwood | 44.47 | 2 Aug 2025 | — | — |
| 402= | Jayden Deleon | 44.47 | 7 Aug 2026 | — | — |
| 417 | Roddie Haley | 44.48 | 18 May 1986 | — | — |
| 417= | Kerron Clement | 44.48 | 7 Aug 2007 | — | 21 |
| 417= | LaShawn Merritt | 44.48 | 5 Jun 2014 | — | 27 |
| 417= | Paul Dedewo | 44.48 | 15 Jul 2018 | — | — |
| 417= | Patrick Blake Leeper | 44.48 | 27 Jul 2019 | — | — |
| 422 | Butch Reynolds | 44.49 | 21 Aug 1987 | — | 23 |
| 422= | Danny Everett | 44.49 | 9 Sep 1990 | — | 23 |
| 422= | Jeremy Wariner | 44.49 | 16 Jul 2010 | — | 26 |
| 422= | Tony McQuay | 44.49 | 24 Jun 2012 | — | — |
| 422= | Fred Kerley | 44.49 | 8 Jun 2019 | — | 24 |
| 422= | Emmanuel Bynum | 44.49 | 9 Jun 2023 | — | — |
| 422= | Christopher Bailey | 44.49 | 14 Sep 2025 | — | — |
| 422= | Jordan Pierre | 44.49 | 12 Jun 2026 | — | — |
| 430 | Roddie Haley | 44.50 | 21 Jun 1986 | — | — |
| 430= | Steve Lewis | 44.50 | 3 Aug 1992 | — | 23 |
| 430= | Jerome Young | 44.50 | 4 Aug 1997 | — | — |
| 430= | Jeremy Wariner | 44.50 | 29 May 2004 | — | 20 |
| 430= | LaShawn Merritt | 44.50 | 24 Jun 2006 | — | 19 |
| 430= | LaShawn Merritt | 44.50 | 13 Sep 2008 | — | 22 |
| 430= | LaShawn Merritt | 44.50 | 1 May 2009 | — | 22 |
| 430= | LaShawn Merritt | 44.50 | 27 Jun 2009 | — | 23 |
| 430= | LaShawn Merritt | 44.50 | 25 Aug 2016 | — | 30 |
| 430= | Bryshon Nellum | 44.50 | 24 Jun 2017 | — | — |
| 430= | Paul Dedewo | 44.50 | 3 Jun 2018 | — | — |
| 430= | Bryce Deadmon | 44.50 | 15 May 2021 | — | — |
| 430= | Michael Cherry | 44.50 | 19 Jun 2021 | — | — |
| 430= | Elija Godwin | 44.50 | 10 Jun 2022 | — | — |
| 430= | Vernon Norwood | 44.50 | 23 Jun 2024 | — | — |
| 445 | Steve Lewis | 44.51 | 10 Jun 1992 | — | 23 |
| 445= | Andrew Valmon | 44.51 | 16 Aug 1992 | — | — |
| 445= | LaMont Smith | 44.51 | 17 Jun 1996 | — | — |
| 445= | Darnell Hall | 44.51 | 3 Jul 1996 | — | — |
| 445= | Derek Mills | 44.51 | 3 Jul 1996 | — | — |
| 445= | Derek Mills | 44.51 | 14 Aug 1996 | — | — |
| 445= | Jerome Young | 44.51 | 5 Aug 1997 | — | — |
| 445= | Michael Johnson | 44.51 | 17 Apr 1999 | — | 31 |
| 445= | Michael Johnson | 44.51 | 30 May 1999 | — | 31 |
| 445= | Jerome Davis | 44.51 | 24 Aug 1999 | — | — |
| 445= | Darold Williamson | 44.51 | 29 May 2004 | — | — |
| 445= | Darold Williamson | 44.51 | 11 Jun 2005 | — | — |
| 445= | Tyree Washington | 44.51 | 9 Sep 2005 | — | — |
| 445= | Jeremy Wariner | 44.51 | 13 Sep 2008 | — | 24 |
| 445= | LaShawn Merritt | 44.51 | 30 May 2015 | — | 28 |
| 445= | LaShawn Merritt | 44.51 | 23 Aug 2015 | — | 29 |
| 445= | Tony McQuay | 44.51 | 24 Jun 2017 | — | — |
| 445= | Fred Kerley | 44.51 | 6 Aug 2017 | — | 22 |
| 445= | Justin Robinson | 44.51 | 9 Jun 2023 | — | — |
| 445= | Vernon Norwood | 44.51 | 15 Jun 2023 | — | — |
| 445= | Johnnie Blockburger | 44.51 | 12 May 2024 | — | — |
| 466 | Danny Everett | 44.52 | 4 Jun 1988 | — | 21 |
| 466= | Danny Everett | 44.52 | 10 Aug 1989 | — | 22 |
| 466= | Steve Lewis | 44.52 | 7 Aug 1991 | — | 22 |
| 466= | Antonio Pettigrew | 44.52 | 27 Aug 1991 | — | — |
| 466= | Andrew Valmon | 44.52 | 26 Jun 1992 | — | — |
| 466= | Tyree Washington | 44.52 | 3 May 1997 | — | — |
| 466= | Alvin Harrison | 44.52 | 8 Aug 1998 | — | — |
| 466= | Trevor Stewart | 44.52 | 30 Apr 2021 | — | — |
| 466= | Michael Norman | 44.52 | 2 Aug 2021 | — | 23 |
| 466= | Jayden Deleon | 44.52 | 19 Jun 2026 | — | — |
| 476 | Danny Everett | 44.53 | 11 Aug 1988 | — | 21 |
| 476= | Danny Everett | 44.53 | 10 Jul 1991 | — | 24 |
| 476= | Michael Johnson | 44.53 | 7 Sep 1996 | — | 28 |
| 476= | Derrick Brew | 44.53 | 16 May 1998 | — | — |
| 476= | Alvin Harrison | 44.53 | 24 Sep 2000 | — | — |
| 476= | Jeremy Wariner | 44.53 | 22 May 2005 | — | 21 |
| 476= | Xavier Carter | 44.53 | 10 Jun 2006 | — | 20 |
| 476= | Gil Roberts | 44.53 | 28 Jun 2014 | — | — |
| 476= | Michael Norman | 44.53 | 21 Apr 2018 | — | 20 |
| 476= | Michael Norman | 44.53 | 30 May 2019 | — | 21 |
| 476= | Michael Norman | 44.53 | 18 May 2024 | — | 26 |
| 487 | Butch Reynolds | 44.54 | 17 Jul 1988 | — | 24 |
| 487= | Steve Lewis | 44.54 | 2 Aug 1992 | — | 23 |
| 487= | Steve Lewis | 44.54 | 4 Aug 1993 | — | 24 |
| 487= | LaShawn Merritt | 44.54 | 16 Sep 2006 | — | 20 |
| 487= | LaShawn Merritt | 44.54 | 13 Jul 2009 | — | 23 |
| 487= | Gil Roberts | 44.54 | 24 Aug 2017 | — | — |
| 487= | Trevor Stewart | 44.54 | 20 Apr 2019 | — | — |
| 487= | Bryce Deadmon | 44.54 | 25 Jun 2022 | — | — |
| 487= | Justin Robinson | 44.54 | 7 Jun 2023 | — | — |
| 487= | Demarius Smith | 44.54 | 25 Jul 2026 | — | — |
| 497 | Andrew Valmon | 44.55 | 17 Aug 1988 | — | — |
| 497= | Steve Lewis | 44.55 | 10 Jul 1992 | — | 23 |
| 497= | Darnell Hall | 44.55 | 16 Jun 1995 | — | — |
| 497= | Angelo Taylor | 44.55 | 13 Jul 2007 | — | 28 |
Every mark in scope within the compiled depth. Equal marks share a rank ("1=" style). An athlete with marks for two nations appears under each nation represented at the time (e.g. Obikwelu under Nigeria and Portugal).
About this derivation
These lists are derived from the marks in our database — including the complete legal all-time lists imported from alltime-athletics.com — grouped by the nation the athlete was representing at each mark. They are not official national records: federations ratify national records under their own eligibility rules, and some marks here may not qualify.