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100 Mile Races in the US

As of October 6, 2026, Crewable lists 162 upcoming 100 mile races in the US from October 2026 to September 2027. The next is Carson 400 on October 7 in Carson City, NV. The next 150 are listed below, and the table by state covers all 162. Registration is open for 44. 2 advertise prize money.

Sources: UltraSignup, RunSignUp, UTMB, race organizers and race websites

With aid station data

C&O Canal 10024 aid

in 7 months

C&O Canal 100

Knoxville, MD
100 mi
Closedfrom $280
Hellbender 1004 aid

in 7 months

Hellbender 100

Old Fort, NC20,000 ft gain
100 mi
Open until May 1, 2027from $395
Silver Moon Race1 aid

in 6 months

Silver Moon Race

Reedley, CA
100 mi24 hr+5
from $70
Southern States 20017 aid

in 5 months

Southern States 200

Delta, AL
200 mi100 mi
Closes Mar 7, 2027from $299
Rim to River 100
10 aid

in 18 days

Rim to River 100

New River Gorge, WV12,000 ft gain
100 mi
Open until Oct 17from $350

Next 150 races

October 2026

34 races

  1. Carson 400

    Carson City, NV
    100 mi1 mi+1
    Closes tomorrowfrom $15

  17. FSR 100

    Copperhill, TN11,254 ft gain
    100 mi
    Closes Oct 14from $350

  18. Gila 100

    Silver City, NM14,774 ft gain
    100 mi50 mi
    Open until Oct 15from $200

  26. Hare Mountain 100

    Hagarville, AR20,321 ft gain
    100 mi
    Open until Oct 15from $330

  31. Rim to River 100

    New River Gorge, WV12,000 ft gain
    100 mi
    Open until Oct 17from $350

November 2026

22 races

  2. Mamba 100

    Memphis, TN
    100 mi100K
    Closes Nov 2from $100

  13. Fat Ox

    Buckeye, AZ
    48 hr100 mi+3$4,000 purse
    Open until Nov 16from $115

December 2026

13 races

  12. Across the Years

    Peoria, AZ23 ft gain
    Backyard Ultra6 days+6
    Open until Dec 20from $105

January 2027

11 races

  4. Frozen: H3

    Bethera, SC
    100 mi
    Closes Jan 5, 2027from $50

  8. Long Haul 100

    Lakeland, FL
    100 mi
    Closes Jan 13, 2027from $55

February 2027

10 races

  1. BURT 100

    Bainbridge Island, WA
    100 mi110K+1

  4. Jackpot Ultras

    Henderson, NV
    48 hr100 mi+2
    Lottery opens Feb 14, 2027from $115

  5. Space Pirate 100

    Port Canaveral, FL
    100 mi50 mi+1
    Closes Feb 19, 2027from $80

  8. Run Lovit

    Hot Springs, AR
    100 mi100K+1
    Registration open

March 2027

15 races

  9. Viper 100

    Cordova, TN
    100 mi107K
    Closes Nov 2from $100

April 2027

16 races

  6. Zion Ultras

    Apple Valley, UT
    100 mi100K+3
    from $209

May 2027

6 races

  2. Hellbender 100

    Old Fort, NC20,000 ft gain
    100 mi
    Open until May 1, 2027from $395

June 2027

12 races

July 2027

11 races

100 mile races by state

Quick answers

What is the next 100 mile race in the US?

Carson 400, on Wednesday, October 7, 2026, in Carson City, NV. Distances: 100 mi, 1 mi, 0.25 mi.

How many 100 mile races in the US have open registration?

44 of the 162 list registration as open as of October 6, 2026, including Carson 400, Anderson Lake Backyard Ultra and Canal Corridor Endurance Run.

Which 100 mile races in the US offer prize money?

2 races advertise prize money, including Fat Ox ($4,000).

Which states have the most 100 mile races?

California (12), Florida (11) and Washington (11).

By month

October 20262,941November 2026802December 2026133January 202794February 202785March 2027108April 2027119May 202795June 202781July 202743August 202737September 202743

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