Mason Louis

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Height-

Weight-

Mason Louis is a United States sprinter. He competes primarily in the 200m, 400m and 4x400m.

His personal bests include 20.87 in the 200m, 45.85 in the 400m, 3:00.99 in the 4x400m, 3:03.87 in the 4x400Metre and 7.09 in the 60m. He is currently active on the international athletics circuit, representing United States.

Key facts

400 m

45.85

2026 season best

45.85

May 15, 2026 · Ed Weir Outdoor Track, Lincoln, NE (USA)

2026 season best

Last competition

NCAA Division I East First Rounds, Un. of Kentucky Outdoor Track Facility, Lexington, KY

May 29, 2026 · 3:00.99

NCAA Division I East First Rounds, Un. of Kentucky Outdoor Track Facility, Lexington, KY

As of Sep 25, 2026: 400 m 45.85, 2026 season best 45.85 (May 15, 2026, Ed Weir Outdoor Track, Lincoln, NE (USA)) · Last competition: NCAA Division I East First Rounds, Un. of Kentucky Outdoor Track Facility, Lexington, KY, May 29, 2026, 3:00.99

Personal bests

200m

20.87

400m

45.85

4x400m

3:00.99

4x400Metre

3:03.87

60m

7.09

400m-short-track

46.58

200m-short-track

21.23

300m

33.44

300m-short-track

33.44

600m

1:17.87

600m-short-track

1:17.87

60MetresHu

8.68

Performance Charts

Season bests

Season	Discipline	Result	Wind	Date	Trend	Competitions
2026	400m	45.85	-	May 15, 2026	↑	Big Ten Outdoor Track & Field Championships
2026	400m-short-track	46.62	-	Feb 27, 2026	↑	Big Ten Conference Indoor Track & Field Championships
2026	600m-short-track	1:17.87	-	Jan 9, 2026	↑	UK Rod McCravy Memorial
2026	600m	1:17.87	-	Jan 9, 2026	↑	UK Rod McCravy Memorial
2026	4x400m	3:00.99	-	May 29, 2026	↑	NCAA Division I East First Rounds, Un. of Kentucky Outdoor Track Facility, Lexington, KY
2026	4x400Metre	3:03.87	-	Feb 28, 2026	↑	Big Ten Conference Indoor Track & Field Championships
2025	400m	47.12	-	Apr 19, 2025	↑	Tom Jones Memorial, Percy Beard Track, Gainesville, FL - Olympic Development
2025	400m-short-track	48.83	-	Jan 31, 2025	↑	Stan Scott Invite & Multis, Sports Performance Center, Lubbock, TX (i)
2025	600m	1:18.99	-	Feb 28, 2025	↑	Big Ten Conference Indoor Track & Field Championships
2025	600m-short-track	1:18.99	-	Feb 28, 2025	↑	Big Ten Conference Indoor Track & Field Championships
2025	4x400m	3:03.42	-	May 30, 2025	↑	NCAA Division I East First Rounds
2025	4x400Metre	3:08.89	-	Jan 30, 2025	↑	Stan Scott Invite & Multis, Sports Performance Center, Lubbock, TX (i)
2024	200m	20.87	+1.7	Mar 15, 2024	↑	USF Alumni Invitational
2024	200m-short-track	21.23	-	Jan 26, 2024	-	PNC Lenny Lyles Invitational, Norton Sports Center, Louisville, KY (i)
2024	300m-short-track	33.44	-	Jan 12, 2024	-	UK Rod McCravy Memorial, Norton Sports Center, Louisville, KY (i)
2024	300m	33.44	-	Jan 12, 2024	-	UK Rod McCravy Memorial, Norton Sports Center, Louisville, KY (i)
2024	400m	45.89	-	Feb 24, 2024	↑	Big Ten Indoor Championships, SPIRE Institute Indoor Track & Field Facility, Geneva, OH (i)
2024	400m-short-track	46.58	-	Feb 9, 2024	↑	Clemson Tiger Paw Invitational
2024	4x400m	3:06.60	-	May 12, 2024	↑	Big Ten Outdoor Track & Field Championships, University of Michigan Outdoor Track Stadium, Ann Arbor, MI
2024	4x400Metre	3:08.32	-	Feb 10, 2024	↑	Clemson Tiger Paw Invitational
2023	400m-short-track	48.04	-	Mar 10, 2023	↑	New Balance Nationals Indoor
2023	400m	48.04	-	Mar 10, 2023	↑	New Balance Nationals Indoor
2021	60m	7.09	-	Jan 2, 2021	-	Turnstone Center, Fort Wayne, IN (USA) (i)
2021	60MetresHu	8.68	-	Jan 2, 2021	-	Turnstone Center, Fort Wayne, IN (USA) (i)
2021	200m	23.01	-	Jan 2, 2021	↑	Turnstone Center, Fort Wayne, IN (USA) (i)
2021	400m	49.03	-	Jul 2, 2021	↑	Renton Memorial Stadium, Seattle, WA (USA)

Discipline	Result	Wind	Date	Competitions
4x400m	3:00.99	-	May 29	NCAA Division I East First Rounds, Un. of Kentucky Outdoor Track Facility, Lexington, KY
400m	46.89	-	May 27	NCAA Division I East First Rounds, Un. of Kentucky Outdoor Track Facility, Lexington, KY
4x400m	3:04.65	-	May 17	Big Ten Outdoor Track & Field Championships
400m	45.85	-	May 15	Big Ten Outdoor Track & Field Championships
4x400m	3:03.23	-	Apr 18	Tom Jones Memorial
400m	46.01	-	Apr 18	Tom Jones Memorial
400m	46.01	-	Apr 16	Tom Jones Memorial
4x400m	3:09.31	-	Mar 21	USF Alumni Invitational
4x400Metre	3:05.24	-	Mar 14	NCAA Division I Indoor Track and Field Championships
4x400Metre	3:05.24	-	Mar 13	NCAA Division I Indoor Track and Field Championships
4x400Metre	3:03.87	-	Feb 28	Big Ten Conference Indoor Track & Field Championships
400m-short-track	46.62	-	Feb 27	Big Ten Conference Indoor Track & Field Championships
400m-short-track	46.62	-	Feb 26	Big Ten Conference Indoor Track & Field Championships
4x400Metre	3:06.20	-	Feb 13	Clemson Tiger Paw Invitational, Clemson Indoor Track & Field Complex, Clemson, SC (i)
400m-short-track	47.65	-	Feb 13	Clemson Tiger Paw Invitational, Clemson Indoor Track & Field Complex, Clemson, SC (i)
400m-short-track	46.78	-	Jan 23	Stan Scott Invite
4x400Metre	3:04.21	-	Jan 23	Stan Scott Invite
4x400Metre	3:10.05	-	Jan 10	UK Rod McCravy Memorial
600m-short-track	1:17.87	-	Jan 9	UK Rod McCravy Memorial
4x400Metre	3:10.05	-	Jan 9	UK Rod McCravy Memorial

Discipline	Result	Wind	Date	Competitions
4x400m	3:04.61	-	Jun 11	NCAA Division I Outdoor Track and Field Championships, Hayward Field, Eugene, OR
4x400m	3:03.42	-	May 30	NCAA Division I East First Rounds
4x400m	3:04.08	-	May 16	Big Ten Outdoor Track & Field Championships, Hayward Field, Eugene, OR
400m	47.71	-	May 16	Big Ten Outdoor Track & Field Championships, Hayward Field, Eugene, OR
4x400m	3:07.06	-	Apr 19	Tom Jones Memorial, Percy Beard Track, Gainesville, FL - Olympic Development
400m	47.12	-	Apr 19	Tom Jones Memorial, Percy Beard Track, Gainesville, FL - Olympic Development
4x400m	3:10.30	-	Apr 11	South Florida Invitational, University of South Florida Track & Field Stadium, Tampa, FL
400m	48.02	-	Apr 11	South Florida Invitational, University of South Florida Track & Field Stadium, Tampa, FL
400m	48.02	-	Apr 11	South Florida Invitational, University of South Florida Track & Field Stadium, Tampa, FL
4x400m	3:09.84	-	Mar 22	USF Alumni Invitational, University of South Florida Track & Field Stadium, Tampa, FL
600m-short-track	1:18.99	-	Feb 28	Big Ten Conference Indoor Track & Field Championships
4x400Metre	3:09.03	-	Feb 15	Clemson Tiger Paw Invitational, Clemson Indoor Track & Field Complex, Clemson, SC (i)
400m-short-track	48.83	-	Feb 1	Stan Scott Invite & Multis, Sports Performance Center, Lubbock, TX (i)
400m-short-track	48.83	-	Jan 31	Stan Scott Invite & Multis, Sports Performance Center, Lubbock, TX (i)
4x400Metre	3:08.89	-	Jan 30	Stan Scott Invite & Multis, Sports Performance Center, Lubbock, TX (i)

Discipline	Result	Wind	Date	Competitions
4x400m	3:06.60	-	May 12	Big Ten Outdoor Track & Field Championships, University of Michigan Outdoor Track Stadium, Ann Arbor, MI
400m	46.95	-	May 12	Big Ten Outdoor Track & Field Championships, University of Michigan Outdoor Track Stadium, Ann Arbor, MI
400m	46.99	-	May 11	Big Ten Outdoor Track & Field Championships, University of Michigan Outdoor Track Stadium, Ann Arbor, MI
400m	46.99	-	May 10	Big Ten Outdoor Track & Field Championships, University of Michigan Outdoor Track Stadium, Ann Arbor, MI
400m	46.95	-	May 10	Big Ten Outdoor Track & Field Championships, University of Michigan Outdoor Track Stadium, Ann Arbor, MI
4x400m	3:08.53	-	Apr 27	The Penn Relay Carnival
4x400m	3:06.86	-	Apr 26	The Penn Relay Carnival
400m	46.36	-	Apr 13	Tom Jones Memorial, Percy Beard Track, Gainesville, FL - Invitational Events
4x400m	3:08.85	-	Apr 13	Tom Jones Memorial, Percy Beard Track, Gainesville, FL - Invitational Events
200m	20.87	+1.7	Mar 16	USF Alumni Invitational
200m	20.87	+1.7	Mar 15	USF Alumni Invitational
400m	45.89	-	Feb 24	Big Ten Indoor Championships, SPIRE Institute Indoor Track & Field Facility, Geneva, OH (i)
4x400m	3:07.09	-	Feb 24	Big Ten Indoor Championships, SPIRE Institute Indoor Track & Field Facility, Geneva, OH (i)
400m	46.17	-	Feb 23	Big Ten Indoor Championships, SPIRE Institute Indoor Track & Field Facility, Geneva, OH (i)
400m	45.89	-	Feb 23	Big Ten Indoor Championships, SPIRE Institute Indoor Track & Field Facility, Geneva, OH (i)

FAQ

Frequently asked questions

What is Mason Louis's 400 m personal best?

Mason Louis's 400 m personal best is 45.85, set on May 15, 2026 in Ed Weir Outdoor Track, Lincoln, NE (USA).

Which events does Mason Louis compete in?

Mason Louis competes in the 400 m.

How did Mason Louis perform in 2026?

2026 season best: 45.85, set on May 15, 2026 in Ed Weir Outdoor Track, Lincoln, NE (USA). Last competition: NCAA Division I East First Rounds, Un. of Kentucky Outdoor Track Facility, Lexington, KY on May 29, 2026, 3:00.99.

Mason Louis

Personal bests

Performance Charts

Season bests

2026

2025

2024

Honours

No medals

Frequently asked questions