Ultra Marathons 2024 - 2025

Tiger Peak Challenge

Issaquah, Washington

28 Jun 25

Free - $110.73

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The Firefly Overnight Endurance Challenge & 10k Trail Race

Lewis Center, Ohio

28 Jun 25 - 29 Jun 25

Free - $65.80

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Bob Marshall Trail Race

Seeley Lake, Montana

05 Jul 25

$43.40 - $85.80

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180-mile Pioneer Crossings Relay Race

Twin Bridges to Virginia City, Montana

11 Jul 25 - 12 Jul 25

$125.00 - $150.00

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The FRED Running Relays - 25 Mile - 50 Mile - 100 Mile - 200 Mile

Rockford, Michigan

12 Jul 25

$43.40 - $91.10

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San Lorenzo River Trail Run

Santa Cruz, California

12 Jul 25

Free - $85.80

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Carolina Reaper Challenge (50k - 26.2 - 13.1 - 10k)

Anderson, South Carolina

12 Jul 25

$32.80 - $43.40

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Storm the Farm

Winona, Minnesota

19 Jul 25

$38.10 - $80.50

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TridelSol Olympic, Sprint & Super Sprint Triathlon, Duathlon, Aquabike, Relay & Swim Only Event

Middleville, Michigan

20 Jul 25

$32.80 - $160.00

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Washington Island Ultra

Washington Island, Wisconsin

25 Jul 25 - 26 Jul 25

$289.75 - $316.00

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The EQUALIZER 50K and 100K Gravel Race

Marthasville, Missouri

26 Jul 25

$38.10 - $74.14

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Burning River

Cuyahoga Falls, Ohio

26 Jul 25 - 27 Jul 25

Free - $277.60

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StRides Against Suicide & Overdose

Valparaiso, Indiana

02 Aug 25

$22.20 - $54.00

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TransRockies Run Charity Bibs

Buena Vista, Colorado

04 Aug 25 - 09 Aug 25

Free

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Larrabee Lakes

Bellingham, Washington

09 Aug 25

Free - $99.93

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Eastern States 100

Waterville, Pennsylvania

09 Aug 25 - 10 Aug 25

Free - $313.70

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Snow Peaks 50 Mile Trail Run

Provo, Utah

09 Aug 25

$181.20

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Michigan Titanium

Grand Rapids, Michigan

10 Aug 25 - 11 Aug 25

Free - $557.95

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Redwood (Summer) Trail Run

Oakland, California

16 Aug 25

Free - $85.80

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2025 CKF Leadville Trail 100 Run

Aspen, Colorado

16 Aug 25 - 17 Aug 25

Free

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Habanero Hundred

Cat Spring, Texas

23 Aug 25 - 24 Aug 25

$11.60 - $300.25

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The Ultimate SUCK

Cuba, Illinois

29 Aug 25

$158.94 - $430.45

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Dusk to Dawn Relay + Ultra 2025

Wendover, Utah

29 Aug 25 - 30 Aug 25

$80.50 - $112.30

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Last Man Standing Ultramarathon

New Gloucester, Maine

30 Aug 25

$138.60 - $149.20

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Old Forge Marathon Weekend

Old Forge, New York

04 Sep 25 - 07 Sep 25

$38.10 - $255.40

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Blue Ridge Relay

Asheville, North Carolina

05 Sep 25 - 06 Sep 25

$757.00 - $1,498.60

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Wisconsin ANVIL Ultra Triathlon

Dousman, Wisconsin

08 Sep 25 - 13 Sep 25

$788.50 - $2,861.00

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DIRTY FOX FIVE HOUR TRAIL RELAY

Fort Wayne, Indiana

13 Sep 25

Free - $80.50

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Priest Lake Marathon

Priest Lake, Idaho

13 Sep 25

$63.04 - $69.40

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PEDALS

Cannonsburg, Michigan

14 Sep 25

Free - $62.30

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Sleigh Me 24 and 48 Hour Ultra

Shortsville, New York

19 Sep 25 - 21 Sep 25

$80.50 - $133.50

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Bryce Canyon Ultras & 30K

Hatch, Utah

20 Sep 25

Free - $259.45

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Pilot Mountain to Hanging Rock Ultra

Danbury, North Carolina

20 Sep 25

Free - $145.10

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ShoreRivers Ride for Clean Rivers

Wye Mills, Maryland

21 Sep 25

$54.50

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Mountain Strong-8 Hour Ultra

Bakersville, North Carolina

27 Sep 25

$103.50

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MuuvWell Hot Rod 24 Hour Ultra

Bowling Green, Kentucky

27 Sep 25

$80.50 - $138.80

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Salt Pans Ultra Marathon - Botswana

Central

27 Sep 25

$400.00

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2025 Market to Market Relay Nebraska

Omaha, Nebraska

27 Sep 25

Free - $1,227.30

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The Lakes TrailFest

Palmer, Alaska

28 Sep 25

$22.20 - $107.00

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IronHike Endurance Series - Fall 2025 - Mohawk Mtn, CT, USA

Cornwall, Connecticut

02 Oct 25 - 05 Oct 25

$400.00 - $4,000.00

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