Ultramarathons in USA in May 2027
14 ultramarathons in USA in May 2027.
14 cities
Busiest: May
From €43
Upcoming races
Your guide to ultramarathons in USA in May 2027
There are 14 upcoming ultramarathons in USA in May 2027, spread across 14 cities. Filter by distance or terrain to narrow things down, and save the races you like the look of.
Most take place in May. Next up is 14th Heartland 50 km Race - 50K in Cassoday on 1 May 2027.
Questions runners ask
How many ultramarathons in USA in May 2027 are there?
Finndu lists 14 upcoming ultramarathons in USA in May 2027, across 14 towns and cities. The list is updated twice a day as organisers announce new races.
When is the next one?
14th Heartland 50 km Race in Cassoday, on 1 May 2027.
How much does it cost to enter?
Entry starts from US$50. Fees vary from race to race, so check each race page for its current price.