TD
Thomas Diamond

Thomas Diamond

AUSAUSMen
Birth dateJul 20, 2004
Height-
Weight-

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, 3:52.49 in the Mile, 7:52.78 in the 3000m and 14:01.43 in the 5000m. He is currently active on the international athletics circuit, representing Australia.

Key facts
Mile
3:52.49
3000 m
7:52.78
2026 season best
3:52.49
Feb 13, 2026 · Dempsey Indoor, Seattle, WA (USA) (i)
2026 season best
Last competition
Morton Games
Jul 10, 2026 · 3:40.69
Morton Games
Age
22 years old

As of Sep 13, 2026: Mile 3:52.49, 3000 m 7:52.78, 2026 season best 3:52.49 (Feb 13, 2026, Dempsey Indoor, Seattle, WA (USA) (i)) · Last competition: Morton Games, Jul 10, 2026, 3:40.69 · 22 years old

Performance Charts

Season bests

SeasonDisciplineResultWindDateTrendCompetitions
2026
1500m
3:38.15-Jun 21, 2026
↑
Portland Track Festival
2026
Mile
3:52.49-Feb 13, 2026
↑
Husky Classic, Dempsey Indoor, Seattle, WA (i)
2026
mile-short-tracki
3:52.49-Feb 13, 2026
↓
-
2026
mile-short-track
3:55.38-Mar 13, 2026
↓
NCAA Division I Indoor Track and Field Championships
2026
DistanceMe
9:17.03-Feb 20, 2026-Arkansas Qualifier
2026
5000m
14:01.43-Apr 3, 2026-Stanford Invitational
2025
Mile
3:55.53-Feb 15, 2025
↑
Husky Classic, Dempsey Indoor, Seattle, WA (i)
2025
3000m
7:52.78-Jan 31, 2025
↑
UW Invitational
2025
3000m-short-track
8:16.62-Dec 6, 2025-Boston University Sharon Colyear-Danville Season Opener
2024
4x100m
46.48-May 12, 2024-PAC 12 Track and Field Championships
2024
800m
1:54.24-May 11, 2024-PAC 12 Track and Field Championships
2024
4x400m
3:11.88-May 12, 2024-PAC 12 Track and Field Championships
2024
1500m
3:42.44-Dec 19, 2024
↑
VMC Meet #1
2024
Mile
4:02.22-Feb 10, 2024
↑
Husky Classic
2024
3000m
7:59.86-Feb 23, 2024
↑
Ken Shannon Last Chance
2023
1500m
3:53.11-Mar 9, 2023
↑
Box Hill Classic
2022
1500m
3:50.17-Feb 18, 2022
↑
Victorian Ch. (W/end #1), Lakeside Stadium, Melbourne
2022
Mile
4:13.58-Mar 19, 2022
↑
Melbourne Track Classic, Lakeside Stadium, Melbourne
2022
3000m
7:57.13-Mar 12, 2022
↑
Sydney Track Classic, SOPAC, Sydney
2021
1500m
3:47.86-Dec 16, 2021
↑
Hagenauer Reserve, Box Hill, Melbourne (AUS)
2021
3000m
8:26.40-Jan 22, 2021
↑
Llanberris Athletics Reserve, Ballarat (AUS)
2020
1500m
3:57.13-Dec 3, 2020
↑
Duncan Mackinnon Reserve, Murrumbeena, Melbourne (AUS)

2026

23 performances
DisciplineResultWindDateCompetitions
1500m
3:40.69-Jul 10Morton Games
Mile
3:55.40-Jul 10Morton Games
Mile
4:00.62-Jul 8Cork City Sports
1500m
3:46.37-Jul 8Cork City Sports
1500m
3:38.15-Jun 21Portland Track Festival
1500m
4:03.25-May 15Big Ten Outdoor Track & Field Championships
1500m
3:50.59-May 15Big Ten Outdoor Track & Field Championships
1500m
3:49.60-Apr 18Bryan Clay Invitational
5000m
14:01.43-Apr 3Stanford Invitational
mile-short-track
3:59.57-Mar 14NCAA Division I Indoor Track and Field Championships
mile-short-track
3:55.38-Mar 13NCAA Division I Indoor Track and Field Championships
mile-short-track
3:59.57-Mar 13NCAA Division I Indoor Track and Field Championships
mile-short-track
4:22.66-Feb 28Big Ten Conference Indoor Track & Field Championships
mile-short-track
4:01.76-Feb 27Big Ten Conference Indoor Track & Field Championships
mile-short-track
4:22.66-Feb 26Big Ten Conference Indoor Track & Field Championships
mile-short-track
4:01.76-Feb 26Big Ten Conference Indoor Track & Field Championships
DistanceMe
9:17.03-Feb 20Arkansas Qualifier
Mile
3:52.49-Feb 14Husky Classic, Dempsey Indoor, Seattle, WA (i)
mile-short-tracki
3:52.49-Feb 132026 Husky Classic
Mile
3:52.49-Feb 13Husky Classic, Dempsey Indoor, Seattle, WA (i)
Mile
3:55.50-Jan 30UW Invite/Mile City
Mile
3:55.33-Jan 16UW Preview
1000m
DNF-Jan 16UW Preview

2025

4 performances
DisciplineResultWindDateCompetitions
3000m-short-track
8:16.62-Dec 6Boston University Sharon Colyear-Danville Season Opener
Mile
3:55.53-Feb 15Husky Classic, Dempsey Indoor, Seattle, WA (i)
3000m
7:52.78-Jan 31UW Invitational
Mile
3:58.46-Jan 182025 UW Preview/Mile City

2024

21 performances
DisciplineResultWindDateCompetitions
1500m
3:42.44-Dec 19VMC Meet #1
1500m
3:49.53-May 12PAC 12 Track and Field Championships
800m
1:54.24-May 12PAC 12 Track and Field Championships
4x400m
3:11.88-May 12PAC 12 Track and Field Championships
4x100m
46.48-May 12PAC 12 Track and Field Championships
800m
1:54.24-May 11PAC 12 Track and Field Championships
1500m
3:49.53-May 10PAC 12 Track and Field Championships
800m
1:56.48-May 2GLIAC Championships, GVSU Track/Lacrosse Stadium, Allendale, MI
1500m
3:53.36-Apr 26Payton Jordan Invitational, Cobb Track and Angell Field, Palo Alto, CA
1500m
3:48.41-Apr 13Bryan Clay Invitational
1500m
3:45.52-Mar 30Stanford Invitational
1500m
3:45.52-Mar 29Stanford Invitational
800m
1:56.56-Feb 25GLIAC Indoor Track & Field Championships
3000m
7:59.86-Feb 23Ken Shannon Last Chance
Mile
4:02.22-Feb 10Husky Classic
800m
1:55.86-Feb 10GVSU Big Meet- Saturday
Mile
4:07.24-Jan 27UW Invitational/Mile City
3000m
8:08.48-Jan 27UW Invitational/Mile City
3000m
8:08.48-Jan 26UW Invitational/Mile City
800m
1:59.75-Jan 26GVSU Bill Clinger Classic, GVSU Kelly Family Sports Cente, Allendale, MI (i)
Mile
4:07.38-Jan 13UW Preview

2023

2 performances
DisciplineResultWindDateCompetitions
1500m
3:53.11-Mar 9Box Hill Classic
1500m
3:59.44-Mar 4Victorian U20 Track & Field Championships, Lakeside Stadium, Melbourne
Showing 1 - 50 of 68

Honours

No medals

FAQ

Frequently asked questions

What is Thomas Diamond's Mile personal best?

Thomas Diamond's Mile personal best is 3:52.49, set on Feb 13, 2026 in Dempsey Indoor, Seattle, WA (USA) (i).

Which events does Thomas Diamond compete in?

Thomas Diamond competes in the Mile and 3000 m.

How did Thomas Diamond perform in 2026?

2026 season best: 3:52.49, set on Feb 13, 2026 in Dempsey Indoor, Seattle, WA (USA) (i). Last competition: Morton Games on Jul 10, 2026, 3:40.69.