Half marathons in Cardiff

2 upcoming races. See all races in Cardiff or half marathons worldwide.

• Cardiff 1.5k, 5k,10k & Half Marathon MoRun
  Nov 1, 2026 · 5–21.1 km
• Cardiff 5k, 10k and Half Marathon Winter Warmer Run
  Jan 31, 2027 · 5–21.1 km