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Marathon Calendar near Llandeilo 2026-2027

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Monthly updates for Llandeilo

Get new running races (and updates) in your inbox every month.

Explore the top marathons near Llandeilo for 2026-2027! We've gathered 14 exciting races in the area. Check out our detailed list below to find your next local race.

January 2026
Jan
24
Sa

Saturn Running - Cwmdare

Trail Run 3 km 5 km ... Marathon 50 km
Jan
24
Sa

Saturn Running - Aberdare

Backyard Ultra 3 km 5 km ... 50 km 7 hr
March 2026
Mar
1
Su

Saturn Running - Cwmdare

Trail Run 3 km 5 km ... 50 km 7 hr
Mar
15
Su

Saturn Running - Cwmdare

Trail Run 3 km 5 km ... Marathon 50 km
April 2026
Apr
5
Su

Pendine Sands Races

Trail Run 5 km 10 km Half Marathon Marathon
Apr
26
Su

Saturn 7 Hour Time Challenge - Aberdare

3 km 7 km ... Marathon 50 km
Apr
26
Su

Saturn Running - Cwmdare

Trail Run 3 km 5 km ... Marathon 50 km
May 2026
May
16
Sa

OTT Marathon

Trail Run 10 mi 26 mi
May
30
Sa

Saturn Running - Cwmdare

Trail Run 3 km 5 km ... 50 km 7 hr
July 2026
Jul
18-19
Sa - Su

Gower Peninsula Ultra Challenge

Trail Run 10 km 25 km ... 75 km 100 km
Jul
25
Sa

Saturn 7 Hour Time Challenge - Aberdare

3 km 7 km ... Marathon 50 km
Jul
25
Sa

Saturn Running - Cwmdare

Trail Run 3 km 5 km ... 50 km 7 hr
December 2026
Dec
12
Sa

Celtic Trail Races

Trail Run 13 mi 26 mi 34 mi
Dec
20
Su

Saturn Running - Cwmdare

Trail Run 3 km 5 km ... Marathon 50 km