Ultras in December
Every upcoming Ultra race we know about in December. Where a detail isn't confirmed, we mark it unknown rather than guessing.
Race results
Showing 24+ of 25 races · loading the full list…
Dec 4, 2026 · 5:30 PM · Daytona Beach, FL
CLASH Endurance Daytona
- Price
- $54.38-$161.13
- Field size
- 1,600 · based on the organizer's entry cap
Dec 5, 2026 · 6:00 AM · Shepherdsville, KY
Crooked Creek Ultra Trail Race
- Price
- $16.90-$181.20
- Field size
- 116 · based on the organizer's entry cap
Dec 5, 2026 · 6:00 AM · Needville, TX
Brazos Bend 100
- Price
- Free-$274
- Field size
- 1,070 · based on the organizer's entry cap
Dec 5, 2026 · 8:00 AM · Granbury, TX
OUTLAST DALLAS FORT WORTH
- Price
- $96.40-$191.80
- Field size
- 600 · based on the organizer's entry cap
Dec 6, 2026 · 7:00 AM · Chesapeake, VA
Tidewater Strider Dismal Swamp 50K / Marathon /Half Marathon/50K Relay
- Price
- $43.40-$85.80
- Field size
- 432 · based on the organizer's entry cap
Dec 9, 2026 · 12:00 PM · Dawsonville, GA
IronHike Amicalola Falls Appalachian Trail Approach Fall 2026
- Price
- $145-$4,485
Dec 12, 2026 · 10:00 AM · Aubrey, TX
Rudolph's Revenge
- Price
- Price on registration site
Dec 12, 2026 · 7:30 AM · Kenner, LA
Kenner's Ole Man River Half Marathon
- Price
- Free-$101.70
Dec 12, 2026 · 5:30 AM · Jacksonville Beach, FL
Daytona 100 Ultra
- Price
- $279.25-$820
- Field size
- 800 · based on the organizer's entry cap
Dec 12, 2026 · 9:00 AM · Pittsburgh, PA
Lost Souls - The Race That Finds You
- Price
- $48.95-$63.79
Dec 13, 2026 · 9:30 AM · Bluffton, SC
Palmetto Bluff Buffalo Run 10K, 30K, 50K Ultra and Relay
- Price
- $48.70-$263.50
Dec 13, 2026 · 6:00 AM · Spicewood, TX
Star of Texas 50 Miler • 50K • Marathon • Half Marathon • 10K • 5K
- Price
- $43.39-$181.19
Dec 13, 2026 · 8:00 AM · Virginia Beach, VA
Mel Williams Memorial Seashore 50K
- Price
- $107
- Field size
- 300 · based on the organizer's entry cap
Dec 19, 2026 · 7:00 AM · Dallas, TX
Texas Double
- Price
- $101.70-$202.40
- Field size
- 174 · based on the organizer's entry cap
Dec 19, 2026 · 8:00 AM · Dripping Springs, TX
OUTLAST AUSTIN
- Price
- $96.40-$138.80
- Field size
- 600 · based on the organizer's entry cap
Dec 27, 2026 · 6:00 AM · Winter Park, FL
Holiday Five
- Price
- $32.80-$368.50
Dec 27, 2026 · 4:00 AM · Fort Walton Beach, FL
16th Annual Round the Bay Relay and Ultra
- Price
- $60.93
Dec 31, 2026 · 9:00 AM · San Jose, CA
New Year's One Day
- Price
- Free-$218.30