US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

1,580 races

Hachie 50 Marathon, Ultra and Relay

50 Mile Ultra Relay
05/05/2018 - 05:00
North America / USA / West South Central / Texas / Waxahachie
Ultramarathon
Running

Hachie 50 Marathon, Ultra and Relay

50 Mile Ultra-marathon
05/05/2018 - 05:00
North America / USA / West South Central / Texas / Waxahachie
Ultramarathon
Running

Hachie 50 Marathon, Ultra and Relay

50k Ultra-marathon
05/05/2018 - 07:00
North America / USA / West South Central / Texas / Waxahachie
Ultramarathon
Running

Wild Hare Trail Run

50K
11/16/2018
North America / USA / West South Central / Texas / Warda
Ultramarathon
Trail Running Solo

Wild Hare Trail Run

50 Mile
11/16/2018
North America / USA / West South Central / Texas / Warda
Ultramarathon
Trail Running Solo

Miracle Match Marathon

50K
01/28/2018 - 07:30
North America / USA / West South Central / Texas / Waco
Ultramarathon
Road Running

Lone Star 100

100 Mile
02/10/2018 - 05:00
North America / USA / West South Central / Texas / Tom Mays Unit Trail
Ultramarathon
Trail Running Multiple loops Solo

Lone Star 100

100M Relay
02/10/2018 - 05:00
North America / USA / West South Central / Texas / Tom Mays Unit Trail
Ultramarathon
Trail Running Multiple loops Relay

Lone Star 100

100K
02/10/2018 - 06:00
North America / USA / West South Central / Texas / Tom Mays Unit Trail
Ultramarathon
Trail Running Multiple loops Solo

Lone Star 100

100K Relay
02/10/2018 - 06:00
North America / USA / West South Central / Texas / Tom Mays Unit Trail
Ultramarathon
Trail Running Multiple loops Relay

Hells Hills

Hells Hills 50 km Endurance Trail Run
04/01/2017 - 06:00
North America / USA / West South Central / Texas / Smithville
Ultramarathon
Trail Running

Hells Hills

Hells Hills 50 Mile Endurance Trail Run
04/01/2017 - 05:00
North America / USA / West South Central / Texas / Smithville
Ultramarathon
Trail Running
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