2017 - 2018 Ultramarathon Calendar in May

Browse our Ultramarathon Calendar for races organized around the world during the month of May among 367 races.

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367 races

Scotiabank Calgary Marathon

50K Ultra
May 28, 2017 Race day in 1 day
Canada / Alberta / Calgary
Ultramarathon - 50 kilometers
Charity Road Running

Rond' Yonne

61 km
May 28, 2017 To be confirmed Race day in 1 day
France / Burgundy / Yonne / Domats
Ultramarathon - 61 kilometers
Relay

Trail du Hautacam

62 km
May 28, 2017 Race day in 1 day
France / Midi-Pyrénées / Hautes-Pyrénées / Beaucens
Ultramarathon - 62 kilometers
Trail Mountain

Alpago EcoMarathon

Alpago EcoMarathon
May 28, 2017 Race day in 1 day
Italy / Veneto / Puos d'Alpago
Ultramarathon - 50 kilometers
Trail Mountain

Scotiabank Calgary Marathon

Confederation 150K Relay
May 28, 2017 Race day in 1 day
Canada / Alberta / Calgary
Ultramarathon - 150 kilometers
Charity Road Running Relay

Gran Trail Rensen

Gran Trail Rensen
May 28, 2017 Race day in 1 day
Italy / Liguria / Arenzano
Ultramarathon - 62 kilometers
UTMB Qualifier Trail Mountain

Pineland Farms Trail Running Festival

Pineland Farms 50K Trail
May 28, 2017 Race day in 1 day
USA / New England / Maine / New Gloucester
Ultramarathon - 50 kilometers
Hilly Trail

Pineland Farms Trail Running Festival

Pineland Farms 50 Mile Trail
May 28, 2017 Race day in 1 day
USA / New England / Maine / New Gloucester
Ultramarathon - 50 miles
Hilly Trail

Wyoming Marathon Races

Rocky Mountain 50k
May 28, 2017 Race day in 1 day
USA / Mountain Region / Wyoming / Laramie
Ultramarathon - 50 kilometers
Charity Road Running

Severn Challenge

Severn Way Ultra
May 28, 2017 Race day in 1 day
United Kingdom / England / Worcestershire / Holt Castle
Ultramarathon - 58 miles
Road Running Ultra Running Ltd

Maxi Race Trail du Lac d'Annecy

Technica Maxi Race
May 28, 2017 Race day in 1 day
France / Rhône-Alpes / Haute-Savoie / Annecy-le-Vieux
Ultramarathon - 85 kilometers
UTMB Qualifier Trail Mountain

Trail Alta Val Nure

Trail Alta Val Nure 60 km
May 28, 2017 Race day in 1 day
Italy / Emilia-Romagna / Bettola
Ultramarathon - 60 kilometers
UTMB Qualifier Trail

Weald Challenge 50km Ultra Trail

Weald Challenge 50 km Ultra Trail
May 28, 2017 Race day in 1 day
United Kingdom / England / East Sussex / Chiddingly
Ultramarathon - 50 kilometers
Trail

Severn Challenge

Bristol Severn
May 29, 2017 Race day in 2 days
United Kingdom / England / Worcestershire / Holt Castle
Ultramarathon - 27 miles
Road Running Ultra Running Ltd

Tenzing Hillary Everest Marathon

Mount Everest Extreme Ultra Marathon
May 29, 2017 Race day in 2 days
Nepal / Mount Everest
Ultramarathon - 60 kilometers
Trail Mountain Extreme