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Endurance races calendar 2025 - 2026: ultramarathons
American River 50-mile Endurance Run
Sacramento, USA
05 Apr, 2025 (Sat)
Trail running
50 mi +1 more
This event also offers:Running
Ancient Lakes Trail Run
Quincy, USA
05-06 Apr, 2025 (Sat - Sun)
Trail running
50 km, 50 mi +2 more
Black Bear 100K
Mulberry, USA
05 Apr, 2025 (Sat)
Trail running
100 km
Brazos Bend 50
Needville, USA
05 Apr, 2025 (Sat)
Trail running
50 km, 50 mi +4 more
Recommended for you
Bruce's Crown Race
Loch Trool Trail Car Park, United Kingdom
05 Apr, 2025 (Sat)
Running
46 mi
This event also offers:Walking
Bull Run Run 50 Mile
Clifton, USA
05 Apr, 2025 (Sat)
Trail running
50 mi
Cabo Verde Ribeira Trail
Mindelo, Cape Verde
05 Apr, 2025 (Sat)
Trail running
50 km, 98 km
Chester Ultra 100
Chester, United Kingdom
05 Apr, 2025 (Sat)
Running
100 mi
Couses Natures de Niederbronn
Niederbronn-les-Bains, France
05-06 Apr, 2025 (Sat - Sun)
Trail running
43 km, 80 km +4 more
Croom Fools Run 50M/50K/16M
Brooksville, USA
05 Apr, 2025 (Sat)
Trail running
50 km, 50 mi +1 more
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