
Thomas Diamond
- Born
- Jul 20, 2004 (22 years old)
- Events
- Mile · 3000 m
Thomas Diamond is a Australia middle-distance runner, born on July 20, 2004. He competes primarily in the 800m, 1500m and Mile.
His personal bests include 1:54.24 in the 800m, 3:38.15 in the 1500m, 3:55.33 in the Mile, 3:52.49 in the Mile and 7:57.13 in the 3000m. He is currently active on the international athletics circuit, representing Australia.
Personal best · Mile3:55.33
2026 season best3:55.33Jan 16, 2026 · Dempsey Indoor, Seattle, WA
Personal best · 3000 m7:57.13
Last competitionMorton GamesJul 10, 2026 · 3:40.69
As of Nov 6, 2026: Mile 3:55.33, 3000 m 7:57.13, 2026 season best 3:55.33 (Jan 16, 2026, Dempsey Indoor, Seattle, WA (USA)) · Last competition: Morton Games, Jul 10, 2026, 3:40.69 · 22 years old
Personal bests
WA points calculator →DisciplineResultAll-time2026
MileIndoorWA 20263:52.491,229 pts–#23
3000mIndoorWA 20257:52.781,122 pts––
Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2026 | 1500m | 3:38.15 | – | Jun 21, 2026 | Portland Track Festival |
| 2026 | mile-short-track Indoor | 3:52.49 | – | Feb 13, 2026 | – |
| 2026 | Mile Indoor | 3:52.49 | – | Feb 13, 2026 | Husky Classic, Dempsey Indoor, Seattle, WA (i) |
| 2026 | Mile | 3:55.33 | – | Jan 16, 2026 | UW Preview |
| 2026 | DistanceMe Indoor | 9:17.03 | – | Feb 20, 2026 | Arkansas Qualifier |
| 2026 | 5000m | 14:01.43 | – | Apr 3, 2026 | Stanford Invitational |
| 2025 | Mile Indoor | 3:55.53 | – | Feb 15, 2025 | Husky Classic, Dempsey Indoor, Seattle, WA (i) |
| 2025 | 3000m Indoor | 7:52.78 | – | Jan 31, 2025 | UW Invitational |