Dewi Griffiths
- Born
- Aug 9, 1991 (35 years old)
- Events
- Marathon · Half Marathon
Dewi Griffiths is a United Kingdom middle-distance runner, born on August 9, 1991. He competes primarily in the 1500m, 3000m and 5000m.
His personal bests include 3:52.23 in the 1500m, 7:55.65 in the 3000m, 13:33.60 in the 5000m, 28:16.07 in the 10000m and 1:01:33 in the Semi. He is currently active on the international athletics circuit, representing United Kingdom.
Personal best · Marathon2:09:49
2025 season best29:10May 18, 2025 · Manchester
Personal best · Half Marathon1:01:33
Last competitionGreat Manchester RunMay 18, 2025 · 29:10
As of Oct 28, 2026: Marathon 2:09:49, Half Marathon 1:01:33, 2025 season best 29:10 (May 18, 2025, Manchester (GBR)) · Last competition: Great Manchester Run, May 18, 2025, 29:10 · 35 years old
Personal bests
WA points calculator →Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2025 | 10Kilometr | 29:10 | – | May 18, 2025 | Great Manchester Run |
| 2024 | Semi | 1:03:17 | – | Aug 25, 2024 | Condor Executive Antrim Coast Half Marathon |
| 2024 | Marathon | 2:12:47 | – | Oct 20, 2024 | TCS Amsterdam Marathon |
| 2023 | CrossCount | 30:50 | – | Nov 11, 2023 | Cardiff Cross Challenge, Llandaff Fields, Cardiff - XC 9.6km |
| 2023 | Marathon | 2:16:51 | – | Apr 23, 2023 | TCS London Marathon |
| 2022 | 5000m | 14:34.62 | – | May 7, 2022 | Cardiff Athletic Stadium, Cardiff (GBR) |
| 2022 | 10Kilometr | 29:28 | – | May 22, 2022 | – |
| 2022 | Semi | 1:04:15 | – | Oct 2, 2022 | Wizz Air Cardiff Half Marathon |