Olivia Tsim

United KingdomUnited KingdomActive
Born
Dec 6, 1994 (31 years old)
Events
Half Marathon · Marathon

Olivia Tsim is a United Kingdom middle-distance runner, born on December 6, 1994. She competes primarily in the 800m, 1500m and 3000m.

Her personal bests include 2:20.86 in the 800m, 4:42.20 in the 1500m, 9:43.44 in the 3000m, 16:15.67 in the 5000m and 1:13:38 in the Semi. She is currently active on the international athletics circuit, representing United Kingdom.

Personal best · Half Marathon1:13:38
2025 season best1:15:02Oct 5, 2025 · Cardiff
2025 season best
Personal best · Marathon2:38:13
Last competitionMaratón Valencia Trinidad Alfonso Zurich, ValenciaDec 7, 2025 · 2:38:13
Maratón Valencia Trinidad Alfonso Zurich, Valencia

As of Nov 6, 2026: Half Marathon 1:13:38, Marathon 2:38:13, 2025 season best 1:15:02 (Oct 5, 2025, Cardiff (GBR)) · Last competition: Maratón Valencia Trinidad Alfonso Zurich, Valencia, Dec 7, 2025, 2:38:13 · 31 years old

Personal bests

WA points calculator →
DisciplineResultAll-time
800mCardiff 2023United Kingdom 800 m all-time list2:20.86819 pts–
1500mCardiff 2023United Kingdom 1500 m all-time list4:42.20891 pts–
3000mMilton Keynes 2022United Kingdom 3000 m all-time list9:43.44965 pts–
5000mMilton Keynes 2022United Kingdom 5000 m all-time list16:15.671,021 pts–
SemiKøbenhavn 2022United Kingdom Half Marathon all-time list1:13:381,057 pts–
MarathonValencia 2025United Kingdom Marathon all-time list2:38:131,042 pts–

Progression

Compare me
SeasonDisciplineResultWindDateCompetitions
2025Semi 1:15:02–Oct 5, 2025Oysho Cardiff Half Marathon, Cardiff
2025Marathon 2:38:13–Dec 7, 2025Maratón Valencia Trinidad Alfonso Zurich, Valencia
2024Semi 1:16:52–Oct 6, 2024Principality Cardiff Half Marathon
2023800m 2:20.86–Jun 25, 2023Welsh Senior & U15 T&F Championships
20231500m 4:42.20–Jun 24, 2023Welsh Senior & U15 T&F Championships
2023Semi 1:20:01–Mar 12, 2023EDP Meia Maratona de Lisboa
20223000m 9:43.44–Jul 9, 2022Stantonbury Stadium, Milton Keynes (GBR)
20225000m 16:15.67–Jul 9, 2022Stantonbury Stadium, Milton Keynes (GBR)
Compare me with Olivia Tsim
FAQ

Frequently asked questions

Olivia Tsim's Half Marathon personal best is 1:13:38, set on Sep 18, 2022 in København (DEN).

Olivia Tsim competes in the Half Marathon and Marathon.

2025 season best: 1:15:02, set on Oct 5, 2025 in Cardiff (GBR). Last competition: Maratón Valencia Trinidad Alfonso Zurich, Valencia on Dec 7, 2025, 2:38:13.