Liam Cossette

Liam Cossette

United StatesUnited States
Events
1500 m · 800 m

Liam Cossette is a United States middle-distance runner. He competes primarily in the 800m, 1500m and Mile.

His personal bests include 1:54.12 in the 800m, 3:53.20 in the 1500m, 4:18.62 in the Mile, 4:18.62 in the Mile and 8:45.17 in the 3000m. He is currently active on the international athletics circuit, representing United States.

Personal best · 1500 m3:53.20
2020 season best1:56.20Feb 1, 2020
2020 season best
Personal best · 800 m1:54.12

As of Nov 14, 2026: 1500 m 3:53.20, 800 m 1:54.12, 2020 season best 1:56.20 (Feb 1, 2020)

Personal bests

WA points calculator →
DisciplineResultAll-time
800mOR 2019United States 800 m all-time list1:54.12912 pts–
1500mCA 2018United States 1500 m all-time list3:53.20937 pts–
MileIndoorWA 20204:18.62902 pts–
Mile2020United States Mile all-time list4:18.62858 pts–
3000m2018United States 3000 m all-time list8:45.17808 pts–
3000mIndoorWA 20188:45.17825 pts–

Progression

SeasonDisciplineResultWindDateCompetitions
2020800m 1:56.20–Feb 1, 2020–
2020800m Indoor1:56.20–Feb 1, 2020Dempsey Indoor, Seattle, WA (USA) (i)
2020Mile Indoor4:18.62–Jan 18, 2020Dempsey Indoor, Seattle, WA (USA) (i)
2020Mile 4:18.62–Jan 18, 2020–
2020mile-short-track 4:20.14–Feb 22, 2020–
2020mile-short-track Indoor4:20.14–Feb 22, 2020Ford Idaho Ctr. Jacksons Track, Nampa, ID (USA) (i)
2019800m 1:54.12–May 10, 2019Monmouth, OR (USA)
20191500m 3:58.35–Apr 27, 2019Bellingham, WA (USA)
FAQ

Frequently asked questions

Liam Cossette's 1500 m personal best is 3:53.20, set on Apr 20, 2018 in Azusa, CA (USA).

Liam Cossette competes in the 1500 m and 800 m.

2020 season best: 1:56.20, set on Feb 1, 2020.