Libby Castelli

United StatesUnited States
Events
Mile

Libby Castelli is a United States middle-distance runner. She competes primarily in the 1500m, Mile and mile-short-track.

Her personal bests include 4:22.15 in the 1500m, 4:43.22 in the Mile and 4:47.79 in the mile-short-track. She is currently active on the international athletics circuit, representing United States.

Personal best · Mile4:43.22
2025 season best4:43.22Jun 5, 2025 · St.Louis University High School, St. Louis
2025 season best
Last competitionBrooks PR Invitational, Renton Memorial Stadium, Renton, WAJun 8, 2025 · 4:57.10
Brooks PR Invitational, Renton Memorial Stadium, Renton, WA

As of Nov 13, 2026: Mile 4:43.22, 2025 season best 4:43.22 (Jun 5, 2025, St.Louis University High School, St. Louis (USA)) · Last competition: Brooks PR Invitational, Renton Memorial Stadium, Renton, WA, Jun 8, 2025, 4:57.10

Personal bests

WA points calculator →
DisciplineResultAll-time
1500mSt. Louis 2025United States 1500 m all-time list4:22.151,034 pts–
MileSt. Louis 2025United States Mile all-time list4:43.221,026 pts–
mile-short-trackIndoorNE 20254:47.791,023 pts–

Progression

SeasonDisciplineResultWindDateCompetitions
20251500m 4:22.15–Jun 5, 2025HOKA Festival of Miles
2025Mile 4:43.22–Jun 5, 2025HOKA Festival of Miles
2025mile-short-track Indoor4:47.79–Feb 8, 2025Frank Sevigne Husker Invitational
2023Mile 4:56.96–Apr 28, 2023Drake Relays, Drake Stadium, Des Moines, IA - Elite Event
FAQ

Frequently asked questions

Libby Castelli's Mile personal best is 4:43.22, set on Jun 5, 2025 in St.Louis University High School, St. Louis (USA).

Libby Castelli competes in the Mile.

2025 season best: 4:43.22, set on Jun 5, 2025 in St.Louis University High School, St. Louis (USA). Last competition: Brooks PR Invitational, Renton Memorial Stadium, Renton, WA on Jun 8, 2025, 4:57.10.