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Endurance races calendar in October 2025: ultramarathons
128 events
Arches Marathon
3 (1)
Moab, USA
04 Oct, 2025 (Sat)
Trail running
50 km +3 more
CNX 100K Ultra Marathon
Tambon Nong Han, Thailand
04 Oct, 2025 (Sat)
Running
60 km, 100 km
Crown Stub 100
Buxton, USA
04 Oct, 2025 (Sat)
Trail running
100 mi
Dana Peak Trail Run
Harker Heights, USA
04 Oct, 2025 (Sat)
Running
50 km, 100 km +1 more
Recommended for you
DC Peaks 50
Kaysville, USA
04 Oct, 2025 (Sat)
Trail running
55 km, 50 mi +1 more
El Diablo Hundo
Doyline, USA
04 Oct, 2025 (Sat)
Trail running
100 km, 100 mi
Epping Forest Ultra
Wanstead, United Kingdom
04 Oct, 2025 (Sat)
Trail running
50 km +1 more
Fire Tower Trail Races
Hinckley, USA
04 Oct, 2025 (Sat)
Trail running
50 km, 100 km +2 more
Koh Chang Trail
Trat, Thailand
04 Oct, 2025 (Sat)
Trail running
55 km +3 more
Perpetua Coast
Yachats, USA
04 Oct, 2025 (Sat)
Trail running
50 km +2 more
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