Will Brennan

United StatesUnited StatesActive
Events
600 Metres · 400 m

Will Brennan is a United States sprinter. He competes primarily in the 400m, 800m and 4x400m.

His personal bests include 48.99 in the 400m, 1:56.59 in the 800m, 3:12.36 in the 4x400m, 1:20.54 in the 600m and 1:20.54 in the 600m. He is currently active on the international athletics circuit, representing United States.

Personal best · 600 Metres1:20.54
2026 season best1:20.54Jan 17, 2026 · Dempsey Indoor, Seattle, WA
2026 season best
Personal best · 400 m48.99
Last competitionSteve Scott InviteMay 2, 2026 · 50.16
Steve Scott Invite

As of Nov 14, 2026: 600 Metres 1:20.54, 400 m 48.99, 2026 season best 1:20.54 (Jan 17, 2026, Dempsey Indoor, Seattle, WA (USA)) · Last competition: Steve Scott Invite, May 2, 2026, 50.16

Personal bests

WA points calculator →
DisciplineResultAll-time2026
400mCA 2026United States 400 m all-time list48.99919 pts––
800mCA 2025United States 800 m all-time list1:56.59847 pts––
4x400mCA 2026United States 4 × 400 m all-time list3:12.36––
600mIndoorWA 20261:20.54993 pts–#259
600mWA 20261:20.54924 pts–#131

Progression

SeasonDisciplineResultWindDateCompetitions
2026400m 48.99–Mar 28, 2026West Coast Relays
2026600m 1:20.54–Jan 17, 2026UW Preview
2026600m Indoor1:20.54–Jan 17, 2026UW Preview
20264x400m 3:12.36–Apr 4, 2026Stanford Invitational
2025400m Indoor50.19–Feb 15, 2025Husky Classic, Dempsey Indoor, Seattle, WA (i)
2025600m Indoor1:22.06–Jan 17, 20252025 UW Preview/Mile City
2025800m 1:56.59–Apr 18, 2025Beach Invitational, Jack Rose Track, Long Beach, CA - Invitational Events
20254x400m Indoor3:13.05–Jan 17, 20252025 UW Preview/Mile City
FAQ

Frequently asked questions

Will Brennan's 600 Metres personal best is 1:20.54, set on Jan 16, 2026 in Dempsey Indoor, Seattle, WA (USA).

Will Brennan competes in the 600 Metres and 400 m.

2026 season best: 1:20.54, set on Jan 17, 2026 in Dempsey Indoor, Seattle, WA (USA). Last competition: Steve Scott Invite on May 2, 2026, 50.16.