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Marathon calendar near Windsor 2025-2026

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Explore the top marathons near Windsor for 2025-2026! We've gathered 45 exciting races in the area. Check out our detailed list below to find your next local race.

July 2025
Jul
19
Saturday

The Maverick X Series Chilterns

Trail Run 12 km 22 km 42 km 52 km
Jul
20
Sunday

BigHeat Trails (FIRE)

Trail Run 16 mi 26 mi
August 2025
Aug
1
Friday

Saturn Running - Englefield Green

5 km 7 km ... 26 mi 50 km
Aug
3
Sunday

Vanguard Way Marathon

Trail Run 13 mi 26 mi
Aug
9
Saturday

Run Dorney Lake Marathon

5 km 10 km 13 mi 26 mi
Aug
9
Saturday

Thames Meander Summer

Trail Run 10 km 13 mi 26 mi
Aug
9
Saturday

Saturn Running - Staines-upon-Thames

5 km 4 mi ... 26 mi 50 km
Aug
15
Friday

Saturn Running - Wraysbury

5 km 4 mi ... 26 mi 50 km
Aug
17
Sunday

Saturn Running - Staines-upon-Thames

5 km 4 mi ... 26 mi 50 km
Aug
24
Sunday

Woldingham Marathon

Trail Run 13 mi 26 mi
Aug
30
Saturday

Saturn Running - Staines-upon-Thames

5 km 4 mi ... 26 mi 50 km
September 2025
Sep
6
Saturday

The Shere 42k Multi Terrain Event

Trail Run 10 km 21 km 42 km
Sep
7
Sunday

The Farnham Pilgrim Marathon

Trail Run 26 mi
Sep
12
Friday

Saturn Running - Englefield Green

5 km 7 km ... 26 mi 50 km
Sep
21
Sunday

Saturn Running - Staines-upon-Thames

5 km 4 mi ... 26 mi 50 km
October 2025
Oct
3
Friday

Saturn Running - Englefield Green

5 km 7 km ... 26 mi 50 km
Oct
18
Saturday

Saturn Running - Staines-upon-Thames

5 km 7 km ... 26 mi 50 km
Oct
25
Saturday

Saturn Running - Staines-upon-Thames

5 km 4 mi ... 26 mi 50 km
November 2025
Nov
2
Sunday

Wendover Woods Marathon

Trail Run 10 km 13 mi 26 mi
Nov
7
Friday

Saturn Running - Staines-upon-Thames

5 km 7 km ... 42 km 50 km
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