When you're ready to venture beyond 26.2 miles, you're ready for the ultra marathon. Typically at least 50K or more, these races are primarily run on trails, which adds to the level of difficulty (but also to the fun). If you talk to any ultra runner, they will tell you that it's a completely different kind of animal from the marathon. Find your ultra marathon here and get ready to log some heavy mileage.

Knock on Wood Ultra Series

Marietta, South Carolina

April 23rd, 2021

Running: 100 Mile Trail Run (Ultra)

Ragnar Trail Richmond, VA

Richmond, Virginia

April 23rd, 2021

Running: 125 Mile Relay (Ultra)

The 24 Hour Lions Roar

Columbia, Missouri

April 23rd, 2021

Running: 24 Hours (Ultra), 12 Hours (Ultra), 6 Hours (Ultra)

The 24 Hour Lions Roar

Columbia, Missouri

April 23rd, 2021

Running: 12 Hours (Ultra), 24 Hours (Ultra), 6 Hours (Ultra)

Big Turtle 50 Miler

Morehead, Kentucky

Virtual
April 24th, 2021

Running: Marathon Trail Run, 50 Miles (Ultra)

Chippewa 50K

New Auburn, Wisconsin

April 24th, 2021

Running: 10K Trail Run, 50K Trail Run (Ultra)

Hyner View Trail Challenge

Hyner, Pennsylvania

April 24th, 2021

Running: 25K Trail Run, 50K Trail Run (Ultra)

Squak Mountain Trail Run

Issaquah, Washington

April 24th, 2021

Running: Half Marathon Trail Run, Marathon Trail Run, 12K Trail Run, 50K Trail Run (Ultra)

Trail Marathon

Pinckney, Michigan

April 24th, 2021

Running: Marathon, 5 Mile Trail Run, 50 Miles (Ultra)

Zane Grey 100K

Pine, Arizona

Virtual
April 24th, 2021

Running: 100K Trail Run (Ultra)

Mountain Brow House 50K

Woodside, California

April 25th, 2021

Running: 50K Trail Run (Ultra)

Dallas Marathon Weekend

Dallas, Texas

April 30th, 2021

Running: Half Marathon, Marathon, 50K (Ultra)

Cascades 1 x 100M Challenge

Jackson, Michigan

May 1st, 2021

Running: 1 Mile, 100 Miles (Ultra)

Deja Vu

Las Vegas, Nevada

Virtual
May 1st, 2021

Running: Marathon, 1 Hour, 12 Hours (Ultra), 6 Hours (Ultra)

EHQ Valley Falls 6 & 12 Hour

Fairmont, West Virginia

May 1st, 2021

Running: 12 Hour Trail Run (Ultra), 6 Hour Trail Run (Ultra)

Hachie 50

Waxahachie, Texas

May 1st, 2021

Running: Kids Run/Fun Run, 10K, 5K

RAPTOR Adventure Series

West Fork, Arkansas

May 1st, 2021

Running: 10K Trail Run, 25K Trail Run, 50K Trail Run (Ultra)

Ridge Route Ultra

Castaic, California

May 1st, 2021

Running: 25K Trail Run, 50K Trail Run (Ultra)

Sycamore Canyon Trail Race

San Diego, California

May 1st, 2021

Running: Half Marathon, 100K Relay (Ultra), 100K Trail Run (Ultra), 50K Trail Run (Ultra)

Titan 3 6H Endurance Run

Nickelsville, Virginia

May 1st, 2021

Running: 3 Hours, 6 Hours (Ultra)

Palm Bluff Trail Race and Ultra Marathon

Osteen, Florida

May 2nd, 2021

Running: Half Marathon, 12K Trail Run, 50 Miles (Ultra), 50K Trail Run (Ultra)

Island Time

Brighton, Michigan

May 7th, 2021

Running: 12 Hour Trail Run (Ultra), 6 Hour Trail Run (Ultra)

Island Time

Chelsea, Michigan

May 7th, 2021

Running: 12 Hour Trail Run (Ultra), 24 Hour Trail Run (Ultra), 6 Hour Trail Run (Ultra)

Sunshine Endurance 6 and 12H Run

Locust Grove, Georgia

Virtual
May 7th, 2021

Running: 12 Hours (Ultra), 6 Hours (Ultra)

Chupacabra 50k

Quanah, Texas

May 8th, 2021

Running: 17K Trail Run, 50K Trail Run (Ultra)

Greenland Trail Races

Greenland, Colorado

Virtual
May 8th, 2021

Running: 25K Trail Run, 4 Mile Trail Run, 50K Trail Run (Ultra), 8 Mile Trail Run

Grizzly Peak

Berkeley, California

Race Cancelled
May 8th, 2021

Running: Half Marathon, Marathon, 10K Trail Run, 30K, 50 Miles (Ultra)

Ice Age Trail Run

La Grange, Wisconsin

May 8th, 2021

Running: Half Marathon Trail Run, 50 Miles, 50K Trail Run (Ultra)

Middle Ridge Monster 8H Run

Charleston, West Virginia

May 8th, 2021

Running: 8 Hour Trail Run (Ultra)

Paiute Meadows Trail Run

Susanville, California

May 8th, 2021

Running: 50K Trail Run/Relay (Ultra), 13.7 Mile Trail Run, 4.5 Mile Trail Run

Quicksilver Endurance Runs

San Jose, California

May 8th, 2021

Running: 100K Trail Run (Ultra), 50K Trail Run (Ultra)

Wildflower Trail Run

Bastrop, Texas

May 8th, 2021

Running: 50K (Ultra), 5K, 7 Mile Trail Run, Marathon, 25K, Half Marathon, 10K, 7 Mile Trail Run, 5K

100K Relay on the Prom

Seaside, Oregon

May 14th, 2021

Running: 100K Relay (Ultra)

Cruel Jewel 100M

Blue Ridge, Georgia

May 14th, 2021

Running: 100 Mile Trail Run (Ultra)

Death By 5K

Brandon, Mississippi

May 15th, 2021

Running: 50K (Ultra), 5K

Delmarva Dash: Running 200 Miles for Kids with Cancer

Wilmington, Delaware

Race Cancelled
May 15th, 2021

Running: 200 Mile Relay (Ultra)

Endure 12 and 24 Hour

Divide, Colorado

May 15th, 2021

Running: 12 Hour Trail Run (Ultra), 24 Hour Trail Run (Ultra)

Flower Moon

Pawhuska, Oklahoma

May 15th, 2021

Running: Half Marathon Trail Run, Marathon Trail Run, 50 Mile Trail Run (Ultra), 5K Trail Run

Galena Sky Trail Races

Galena, Illinois

May 15th, 2021

Running: 4 Hour Trail Run (Ultra), 8 Hours

Hidden Hills Ultra

Strawn, Texas

May 15th, 2021

Running: Half Marathon Trail Run, Marathon Trail Run, 10K Trail Run, 50 Mile Trail Run (Ultra), 5K Trail Run