Sioned Howells

United KingdomUnited KingdomActive
Events
10 Kilometres Road · Marathon

Sioned Howells is a United Kingdom long-distance runner. She competes primarily in the Semi, Marathon and 10Kilometr.

Her personal bests include 1:22:10 in the Semi, 2:53:08 in the Marathon and 36:01 in the 10Kilometr. She is currently active on the international athletics circuit, representing United Kingdom.

Personal best · 10 Kilometres Road36:01
2026 season best2:59:24Mar 1, 2026
2026 season best
Personal best · Marathon2:53:08
Last competitionTokyo MarathonMar 1, 2026 · 2:59:24
Tokyo Marathon

As of Nov 14, 2026: 10 Kilometres Road 36:01, Marathon 2:53:08, 2026 season best 2:59:24 (Mar 1, 2026) · Last competition: Tokyo Marathon, Mar 1, 2026, 2:59:24

Personal bests

WA points calculator →
DisciplineResultAll-time
SemiCardiff 2022United Kingdom Half Marathon all-time list1:22:10894 pts–
MarathonBerlin 2023United Kingdom Marathon all-time list2:53:08913 pts–
10KilometrSwansea 202136:01–

Progression

SeasonDisciplineResultWindDateCompetitions
2026Marathon 2:59:24–Mar 1, 2026Tokyo Marathon
2023Marathon 2:53:08–Sep 24, 2023BMW Berlin Marathon
2022Semi 1:22:10–Mar 27, 2022Cardiff (GBR)
2022Marathon 2:54:26–Apr 18, 2022B.A.A. Boston Marathon, Boston, MA
202110Kilometr 36:01–Sep 19, 2021Swansea (GBR)
2021Semi 1:20:28–Oct 31, 2021–
FAQ

Frequently asked questions

Sioned Howells's 10 Kilometres Road personal best is 36:01, set on Sep 19, 2021 in Swansea (GBR).

Sioned Howells competes in the 10 Kilometres Road and Marathon.

2026 season best: 2:59:24, set on Mar 1, 2026. Last competition: Tokyo Marathon on Mar 1, 2026, 2:59:24.