Alastair Chalmers
United KingdomActive- Born
- Mar 31, 2000 (26 years old)
- Birthplace
- Guernsey, Guernsey
- Events
- 400 m hurdles · 300 Metres Hurdles
- Height
- 1.88 m
Alastair Chalmers is a British track and field hurdler who specialises in the 400 metres hurdles. He won Guernsey's first-ever Commonwealth Games track and field medal when he took bronze at the 2022 edition and he is a five-time British 400 m hurdles champion.
Personal best · 400 m hurdles48.30
2026 season best48.53Jun 3, 2026 · Paavo Nurmen Stadion, Turku
Personal best · 300 Metres Hurdles35.35
Last competitionISTAF 2026Aug 30, 2026 · 49.14
As of Oct 29, 2026: 400 m hurdles 48.30 (#123 all-time), 300 Metres Hurdles 35.35, 2026 season best 48.53 (Jun 3, 2026, Paavo Nurmen Stadion, Turku (FIN)) · Last competition: ISTAF 2026, Aug 30, 2026, 49.14 · 26 years old
Personal bests
WA points calculator →Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2026 | 400mH | 48.53 | – | Jun 3, 2026 | Paavo Nurmi Games |
| 2025 | 60m Indoor | 6.88 | – | Jan 26, 2025 | Cardiff Met Non Thomas Speed Grand Prix |
| 2025 | 400m Indoor | 46.84 | – | Feb 22, 2025 | UK Indoor Championships, Arena Birmingham, Birmingham (i) |
| 2025 | 400m-short-track Indoor | 46.84 | – | Feb 22, 2025 | UK Indoor Championships, Arena Birmingham, Birmingham (i) |
| 2025 | 400mH | 48.30 | – | Jun 8, 2025 | 60. Internationales Pfingstsportfest Rehlingen, Bungertstadion, Rehlingen |
| 2025 | 600m Indoor | 1:18.21 | – | Jan 12, 2025 | Cardiff Met Non Thomas Endurance Grand Prix |
| 2025 | 600m-short-track Indoor | 1:18.21 | – | Jan 12, 2025 | Cardiff Met Non Thomas Endurance Grand Prix |
| 2025 | 4x400Metre Indoor | 3:05.49 | – | Mar 9, 2025 | European Athletics Indoor Championships |