Louise Grenfell

United KingdomUnited KingdomActive
Events
400 m hurdles · 400 Metres Short Track

Louise Grenfell is a United Kingdom sprinter. She competes primarily in the 200m, 400m and 400m.

Her personal bests include 26.40 in the 200m, 57.74 in the 400m, 58.43 in the 400m, 2:17.15 in the 800m and 1:00.78 in the 400mH. She is currently active on the international athletics circuit, representing United Kingdom.

Personal best · 400 m hurdles1:00.78
2026 season best1:01.12Jun 20, 2026 · Alexander Stadium, Birmingham
2026 season best
Personal best · 400 Metres Short Track57.74
Last competitionNovuna UK Athletics ChampionshipsJun 20, 2026 · 1:01.12
Novuna UK Athletics Championships

As of Nov 15, 2026: 400 m hurdles 1:00.78, 400 Metres Short Track 57.74, 2026 season best 1:01.12 (Jun 20, 2026, Alexander Stadium, Birmingham (GBR)) · Last competition: Novuna UK Athletics Championships, Jun 20, 2026, 1:01.12

Personal bests

WA points calculator →
DisciplineResultAll-time2026
200mLondon 2023United Kingdom 200 m all-time list26.40817 pts––
400mIndoorSheffield 202457.74949 pts––
400mBirmingham 2023United Kingdom 400 m all-time list58.43891 pts––
800mChelmsford 2022United Kingdom 800 m all-time list2:17.15876 pts––
400mHBirmingham 2025United Kingdom 400 m hurdles all-time list1:00.78999 pts–#979
400m-short-trackIndoorSheffield 202457.74949 pts––

Progression

SeasonDisciplineResultWindDateCompetitions
2026400mH 1:01.12–Jun 20, 2026Novuna UK Athletics Championships
2025400m-short-track Indoor59.23–Feb 8, 2025England Athletics U15/U17/20 Indoor Championships
2025400m Indoor59.23–Feb 8, 2025England Athletics U15/U17/20 Indoor Championships
2025400mH 1:00.78–Aug 3, 2025UK Championships, Alexander Stadium, Birmingham
2024400m Indoor57.74–Feb 10, 2024England Open U20, U17 and U15 ndoor Championships
2024400m-short-track Indoor57.74–Feb 10, 2024England Open U20, U17 and U15 ndoor Championships
2024400mH 1:02.16–Jun 9, 2024South of England U20/Senior & U15/U17 3000 Metres Championships, Thames Valley Athletics Stadium, Eton
2023200m 26.40+0.8May 7, 2023BFTTA Outdoor Series 2, Lee Valley Athletics Centre, London
FAQ

Frequently asked questions

Louise Grenfell's 400 m hurdles personal best is 1:00.78, set on Aug 3, 2025 in Alexander Stadium, Birmingham (GBR).

Louise Grenfell competes in the 400 m hurdles and 400 Metres Short Track.

2026 season best: 1:01.12, set on Jun 20, 2026 in Alexander Stadium, Birmingham (GBR). Last competition: Novuna UK Athletics Championships on Jun 20, 2026, 1:01.12.