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Marathon Calendar near Welwyn Garden City 2026-2027

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Monthly updates for Welwyn Garden City

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

Explore the top marathons near Welwyn Garden City for 2026-2027! We've gathered 77 exciting races in the area. Check out our detailed list below to find your next local race.

January 2026
Jan
9
Fr

Saturn 7 Hour Time Challenge - Staines-upon-Thames

3 km 7 km ... 50 km 7 hr
Jan
10
Sa

Saturn Running - Staines-upon-Thames

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

Saturn Running - Staines-upon-Thames

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

Running Tribe Races

Trail Run 7 km 10 km ... 30 mi 40 mi
February 2026
Feb
5-8
Th - Su

Enigma Quadzilla

Marathon
Feb
6
Fr

Saturn 7 Hour Time Challenge - Staines-upon-Thames

3 km 7 km ... 50 km 7 hr
Feb
7
Sa

Saturn Running - Staines-upon-Thames

3 km 5 km ... 50 km 100 km
Feb
14
Sa

Saturn 7 Hour Time Challenge - Staines-upon-Thames

3 km 7 km ... Marathon 50 km
Feb
14
Sa

Saturn Running - Staines-upon-Thames

3 km 5 km ... 50 km 7 hr
Feb
15
Su

Phoenix Running - Greater London

Trail Run 3 mi 7 mi ... 26 mi 28 mi
Feb
21
Sa

Saturn 7 Hour Time Challenge - Staines-upon-Thames

3 km 7 km ... Marathon 50 km
Feb
21
Sa

Saturn Running - Staines-upon-Thames

3 km 5 km ... 50 km 7 hr
Feb
21
Sa

Magna Carta Winter

Trail Run 10 km 13 mi 26 mi
Feb
21
Sa

Running Tribe Races

Trail Run 7 km 10 km ... 30 mi 40 mi
Feb
28
Sa

Saturn Running - Staines-upon-Thames

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

Phoenix Running - Eaton Ford

5 km 10 km Half Marathon Marathon
Mar
6
Fr

Saturn 7 Hour Time Challenge - Staines-upon-Thames

3 km 7 km ... 50 km 7 hr
Mar
8
Su

Thames Meander Spring

Trail Run 10 km Half Marathon Marathon
Mar
9-15
Mo - Su

Enigma Week at the Knees

Marathon
Mar
14
Sa

Saturn Running - Staines-upon-Thames

3 km 5 km ... 50 km 7 hr