Cassidy Armstrong
United StatesActive- Events
- Mile
Cassidy Armstrong is a United States middle-distance runner. She competes primarily in the 1500m, Mile and 3000m.
Her personal bests include 4:30.27 in the 1500m, 4:48.87 in the Mile, 9:25.63 in the 3000m, 10:24.40 in the 2Miles and 10:42.61 in the 2Miles. She is currently active on the international athletics circuit, representing United States.
Personal best · Mile4:48.87
2026 season best4:48.87Jun 7, 2026 · Renton Memorial Stadium, Renton, WA
Last competitionBrooks PR InvitationalJun 7, 2026 · 4:48.87
As of Nov 13, 2026: Mile 4:48.87, 2026 season best 4:48.87 (Jun 7, 2026, Renton Memorial Stadium, Renton, WA (USA)) · Last competition: Brooks PR Invitational, Jun 7, 2026, 4:48.87
Personal bests
WA points calculator →DisciplineResultAll-time2026
3000mIndoorWA 20269:25.631,042 pts–#435
2MilesIndoorMA 202610:24.40–#24
2MilesOR 202410:42.61––
2MilesShorIndoorMA 202610:24.40–#26
Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2026 | 1500m | 4:30.27 | – | Jun 7, 2026 | Brooks PR Invitational |
| 2026 | Mile | 4:48.87 | – | Jun 7, 2026 | Brooks PR Invitational |
| 2026 | 3000m Indoor | 9:25.63 | – | Feb 13, 2026 | Husky Classic, Dempsey Indoor, Seattle, WA (i) |
| 2026 | 2Miles Indoor | 10:24.40 | – | Mar 13, 2026 | New Balance Nationals Indoors |
| 2026 | 2MilesShor Indoor | 10:24.40 | – | Mar 13, 2026 | New Balance Nationals Indoors |
| 2025 | Mile Indoor | 4:59.29 | – | Jan 18, 2025 | 2025 UW Preview/Mile City |
| 2025 | 3000m Indoor | 9:31.65 | – | Feb 14, 2025 | Husky Classic, Dempsey Indoor, Seattle, WA (i) |
| 2024 | Mile | 4:55.02 | – | Jun 12, 2024 | Brooks PR Invitational, Renton Memorial Stadium, Renton, WA - High School Events |