2017 - 2018 USA Ultramarathon Calendar in April

Browse our Ultramarathon Calendar for races organized in USA during the month of April among 182 races.

182 races

Croom Trail

Croom Trail 50K Fools Run
April 04, 2015 The race has already taken place.
USA / South Atlantic / Florida / Brooksville
Ultramarathon - 50 kilometers
Trail

Croom Trail

Croom Trail 50M Fools Run
April 04, 2015 The race has already taken place.
USA / South Atlantic / Florida / Brooksville
Ultramarathon - 50 miles
Trail

Bloomington to West Lafayette (Indiana)

2 Person Team
April 11, 2015 The race has already taken place.
USA / East North Central / Indiana / Bloomington
Ultramarathon - 100 miles
Road Running Relay

Bloomington to West Lafayette (Indiana)

3 Person Team
April 11, 2015 The race has already taken place.
USA / East North Central / Indiana / Bloomington
Ultramarathon - 100 miles
Road Running Relay

Bloomington to West Lafayette (Indiana)

4 Person Team
April 11, 2015 The race has already taken place.
USA / East North Central / Indiana / Bloomington
Ultramarathon - 100 miles
Road Running Relay

Bloomington to West Lafayette (Indiana)

5 Person Team
April 11, 2015 The race has already taken place.
USA / East North Central / Indiana / Bloomington
Ultramarathon - 100 miles
Road Running Relay

Bloomington to West Lafayette (Indiana)

6 Person Team
April 11, 2015 The race has already taken place.
USA / East North Central / Indiana / Bloomington
Ultramarathon - 100 miles
Road Running Relay

Bloomington to West Lafayette (Indiana)

7 Person Team
April 11, 2015 The race has already taken place.
USA / East North Central / Indiana / Bloomington
Ultramarathon - 100 miles
Road Running Relay

Bloomington to West Lafayette (Indiana)

8 Person Team
April 11, 2015 The race has already taken place.
USA / East North Central / Indiana / Bloomington
Ultramarathon - 100 miles
Road Running Relay

Earth Day 50K / 15 Mile Trail Race

Earth Day 50K Trail Race
April 18, 2015 The race has already taken place.
USA / East North Central / Illinois / Crystal Lake
Ultramarathon - 50 kilometers
Trail Relay

Cheyenne Mtn. Trail Race

Cheyenne Mtn. Trail 50K Race
April 25, 2015 The race has already taken place.
USA / Mountain Region / Colorado / Cheyenne Mountain State Park
Ultramarathon - 50 kilometers
Trail Epic Endurance Events Fast

The Aoudad Trail Run

The Aoudad 50K
April 25, 2015 The race has already taken place.
USA / West South Central / Texas / Leakey
Ultramarathon - 50 kilometers
Hilly Trail

Tanana River Challenge

Tanana River Challenge 45 Mile
April 02, 2016 The race has already taken place.
USA / Pacific / Alaska / Fairbanks
Ultramarathon - 45 miles
Trail Snow

Potawatomi Trail Runs

Potawatomi 100 Mile Trail Run
April 08, 2016 The race has already taken place.
USA / East North Central / Illinois / Pekin
Ultramarathon - 100 miles
Hilly Trail

Potawatomi Trail Runs

Potawatomi 30 Mile Trail Fun Run
April 08, 2016 The race has already taken place.
USA / East North Central / Illinois / Pekin
Ultramarathon - 30 miles
Hilly Trail Night