Theresa Hailey
United StatesActive- Born
- Nov 27, 1988 (37 years old)
- Events
- Marathon · 25 Kilometres Road
Theresa Hailey is a United States middle-distance runner, born on November 27, 1988. He competes primarily in the 800m, 1500m and Mile.
His personal bests include 2:15.60 in the 800m, 4:30.34 in the 1500m, 4:53.52 in the Mile, 9:35.96 in the 3000m and 16:27.50 in the 5000m. He is currently active on the international athletics circuit, representing United States.
Personal best · Marathon2:36:13
2026 season best1:16:14Apr 26, 2026 · Hayward Field, Eugene, OR
Personal best · 25 Kilometres Road1:31:18
Last competitionEugene Half MarathonApr 26, 2026 · 1:16:14
As of Nov 13, 2026: Marathon 2:36:13, 25 Kilometres Road 1:31:18, 2026 season best 1:16:14 (Apr 26, 2026, Hayward Field, Eugene, OR (USA)) · Last competition: Eugene Half Marathon, Apr 26, 2026, 1:16:14 · 37 years old
Personal bests
WA points calculator →DisciplineResultAll-time
Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2026 | Semi | 1:16:14 | – | Apr 26, 2026 | Eugene Half Marathon |
| 2025 | Marathon | 2:36:13 | – | Dec 7, 2025 | California International Marathon |
| 2023 | 3000m | 9:35.96 | – | Jun 4, 2023 | Portland Track Festival - High Performance, Mt. Hood Community College, Gresham, OR - Invitational Events |
| 2023 | 10Kilometr | 34:57 | – | Jun 10, 2023 | Mastercard New York Mini 10K |
| 2023 | 12Kilometr | 42:08 | – | May 7, 2023 | Lilac Bloomsday Run |
| 2023 | 10MilesRoa | 57:36 | – | Apr 2, 2023 | Credit Union Cherry Blossom 10 Mile |
| 2023 | Marathon | 2:38:01 | – | Sep 24, 2023 | BMW Berlin Marathon |
| 2022 | 1500m | 4:35.52 | – | Jul 2, 2022 | Jesuit High School Track, Portland, OR (USA) |