Mia Klostergaard Oldfield

DenmarkDenmarkActive
Born
Mar 20, 2005 (21 years old)
Events
400 m

Mia Klostergaard Oldfield is a Denmark sprinter, born on March 20, 2005. She competes primarily in the 400m, 4x100m and 4x400m.

Her personal bests include 55.81 in the 400m, 47.95 in the 4x100m, 3:46.95 in the 4x400m, 3:27.64 in the 4x400Metre and 57.10 in the 400m-short-track. She is currently active on the international athletics circuit, representing Denmark.

Personal best · 400 m55.81
2026 season best56.75May 3, 2026 · Cardiff Athletic Stadium, Cardiff
2026 season best
Last competitionNational Athletics League Premiership DivisionJul 11, 2026 · 57.96
National Athletics League Premiership Division

As of Nov 7, 2026: 400 m 55.81, 2026 season best 56.75 (May 3, 2026, Cardiff Athletic Stadium, Cardiff (GBR)) · Last competition: National Athletics League Premiership Division, Jul 11, 2026, 57.96 · 21 years old

Personal bests

WA points calculator →
DisciplineResultAll-time
400mChelmsford 2025Denmark 400 m all-time list55.81984 pts–
4x100mBirmingham 2025Denmark 4 × 100 m all-time list47.95–
4x400mCardiff 2026Denmark 4 × 400 m all-time list3:46.95–
4x400MetreTårnby 20253:27.64–
400m-short-trackIndoorSheffield 202657.10972 pts–

Progression

Compare me
SeasonDisciplineResultWindDateCompetitions
2026400m 56.75–May 3, 2026BUCS Athletics: Outdoor Championships, Cardiff Athletic Stadium, Cardiff
2026400m-short-track Indoor57.10–Feb 15, 2026BUCS Indoor Athletics Championships, EIS Don Valley Stadium, Sheffield (i)
20264x400m 3:46.95–May 3, 2026BUCS Athletics: Outdoor Championships, Cardiff Athletic Stadium, Cardiff
20254x100m 47.95–Aug 17, 2025England Athletics National Relay Championship, Alexander Stadium, Birmingham
2025400m 55.81–Jun 28, 2025South of England U20/Senior & U15/U17 3000 Metres Championships
2025400m-short-track Indoor58.06–Feb 15, 2025BUCS Indoor Athletics Championships, EIS Don Valley Stadium, Sheffield (i)
20254x400Metre 3:27.64–Sep 7, 2025Danish U23 Championships, Tårnby Stadion, Tårnby
20254x400m 3:49.19–Aug 16, 2025National Athletics League - Premiership, Alexander Stadium, Birmingham
Compare me with Mia Klostergaard Oldfield
FAQ

Frequently asked questions

Mia Klostergaard Oldfield's 400 m personal best is 55.81, set on Jun 28, 2025 in Chelmsford Sport And Athletics Centre Melbourne Park, Chelmsford (GBR).

Mia Klostergaard Oldfield competes in the 400 m.

2026 season best: 56.75, set on May 3, 2026 in Cardiff Athletic Stadium, Cardiff (GBR). Last competition: National Athletics League Premiership Division on Jul 11, 2026, 57.96.