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100 Mile Races Near Phoenix, AZ

As of October 6, 2026, Crewable lists 5 upcoming 100 mile races near Phoenix, AZ from October 2026 to April 2027. The next is Javelina Jundred on October 31 in McDowell, AZ. Registration is open for 3. One advertises prize money.

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

Race calendar

October 2026

1 race

November 2026

1 race

  1. Fat Ox

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

December 2026

1 race

  1. Across the Years

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

January 2027

1 race

April 2027

1 race

Quick answers

What is the next 100 mile race near Phoenix, AZ?

Javelina Jundred, on Saturday, October 31, 2026, in McDowell, AZ. Distances: 100 mi, 100K, 31K.

What is the closest 100 mile race to Phoenix?

Coldwater Hundred in Goodyear, AZ, about 15 miles from Phoenix, on January 16, 2027.

How many 100 mile races near Phoenix, AZ have open registration?

3 of the 5 list registration as open as of October 6, 2026, including Fat Ox, Across the Years and El Jefe 100.

Which 100 mile races near Phoenix, AZ offer prize money?

One race advertises prize money: Fat Ox ($4,000).

What is the busiest month for 100 mile races near Phoenix, AZ?

October 2026, with 1 of the 5. November 2026 follows with 1.

Nearby cities

Sedona15Tucson21Flagstaff17

Nearby states

California12Nevada5New Mexico31Utah5

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