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Ultramarathons in December

The 170 ultramarathons that run in December, with distance, climb and cutoff for each. Every race links to its own page, where you can see how it fits the runner you are now.

RaceDistanceWhereDateClimbCutoff
Freight Train 200200 MilesWolfe City, TXDec 3, 2026—72 h
Blood Rock Race101 MilesPelham, ALDec 4, 202617,196 ft44 h
Blood Rock 55 km Race55 KMPelham, ALDec 4, 20265,677 ft18 h
Blood Rock Race51 MilesPelham, ALDec 4, 20268,659 ft23 h
The Sawmill GauntletBackyard (4.167-mile yards)Laurens, SCDec 4, 2026——
Anza Borrego Cuyamaca 50 Mile Run50 MilesJulian, CADec 5, 20265,500 ft14.5 h
Bigfoot 50k50 KMLore City, OHDec 5, 20264,000 ft8.5 h
Blood Rock 10050 KMPelham, ALDec 5, 20265,345 ft18 h
Brazos Bend 10050 KMNeedville, TXDec 5, 202636 ft14 h
Brazos Bend 100 - 100 km50 MilesNeedville, TXDec 5, 2026141 ft15 h
Brazos Bend 100 - 100 km100 KMNeedville, TXDec 5, 202660 ft31.5 h
Brazos Bend 100100 MilesNeedville, TXDec 5, 2026100 ft32 h
Calero Trail Run - December50 KMSan Jose, CADec 5, 2026—8 h
Caloosahatchee Ultra50 KMAlva, FLDec 5, 2026—9 h
Capstone 50k50 KMSt George, UTDec 5, 2026—9 h
Cloudland Canyon 50 km Race50 KMRising Fawn, GADec 5, 20264,000 ft11 h
Cloudland Canyon Race50 MilesRising Fawn, GADec 5, 20266,500 ft15.5 h
Colossal Vail 50 km55 KMVail, AZDec 5, 20262,300 ft11.5 h
Colossal Vail50 MilesVail, AZDec 5, 20264,000 ft15 h
Crooked Creek Ultra Trail Race100 MilesShepherdsville, KYDec 5, 202616,000 ft36 h
Crooked Creek Ultra Trail Race50 MilesShepherdsville, KYDec 5, 20268,000 ft16 h
Devil Dog Ultra Race100 MilesTriangle, VADec 5, 202610,250 ft32 h
Devil Dog Ultra 50 km Race50 KMTriangle, VADec 5, 20263,000 ft10 h
Devil Dog Ultra Race100 KMTriangle, VADec 5, 20266,250 ft20 h
Backyard Ultra LlagosteraBackyard (4.167-mile yards)Llagostera, SpainDec 5, 2026——
Festivus Trail Run100 MilesMiddleburg, FLDec 5, 20263,150 ft38 h
Festivus Trail Run35 MilesMiddleburg, FLDec 5, 20261,125 ft18 h
Festivus Trail Run50 MilesMiddleburg, FLDec 5, 20261,575 ft38 h
Grand Menestrail de Moncontour101 kmMoncontour, FranceDec 5, 202611,483 ft16.5 h
Grand Menestrail de Moncontour56kmMoncontour, FranceDec 5, 20266,890 ft9 h
Freight Train 50k50 KMFarmville, VADec 5, 2026750 ft10.5 h
Freight Train 100k100 KMFarmville, VADec 5, 20261,500 ft19 h
Freight Train 200100 MilesWolfe City, TXDec 5, 2026—30 h
Freight Train 20050 MilesWolfe City, TXDec 5, 2026—13.5 h
HAROC (aka Hanging Rock Challenge)50 KMDanbury, NCDec 5, 20265,500 ft9.5 h
Hitchcock Experience100 KMHoney Creek, IADec 5, 202611,000 ft34 h
Isle du Bois Trail Run50 KMPilot Point, TXDec 5, 2026600 ft9.5 h
Jackson County Ultras50 KMBrownstown, INDec 5, 20264,800 ft12.5 h
Jackson County Ultras100 KMBrownstown, INDec 5, 20269,600 ft24 h
Lake Norman State Park 30K & 50K Trail Race50 KMTroutman, NCDec 5, 20261,600 ft9 h
Last Chance Ultra100 MilesStockton, MODec 5, 20267,800 ft32 h
Last Chance Ultra50 KMStockton, MODec 5, 20262,100 ft11.5 h
Last Chance Ultra50 MilesStockton, MODec 5, 20263,900 ft28 h
Last Chance Ultra100 KMStockton, MODec 5, 2026—19.5 h
Longhorn Last Person StandingBackyard (4.167-mile yards)Dripping Springs, TXDec 5, 2026200 ft—
Loup Garou Trail Run100 MilesVille Platte, LADec 5, 20267,800 ft29.5 h
Loup Garou 40 Mile Trail Run40 MilesVille Platte, LADec 5, 20262,300 ft12.5 h
Loup Garou Trail Run60 MilesVille Platte, LADec 5, 20264,700 ft24 h
McDowell Mountain Frenzy50 KMFountain Hills, AZDec 5, 20263,020 ft15.5 h
McDowell Mountain Frenzy50 MilesFountain Hills, AZDec 5, 20265,348 ft16 h
Mosaic Trail Run50 KMLiberty Hill, TXDec 5, 20261,500 ft9 h
Nature Coast50 KMChiefland, FLDec 5, 2026—9 h
Nature Coast 100k100 KMChiefland, FLDec 5, 2026—24 h
Over The Hill Track Club High Desert 50K & 30K50 KMRidgecrest, CADec 5, 20262,726 ft10 h
Margalla Backyard UltraBackyard (4.167-mile yards)Islamabad City, PakistanDec 5, 2026——
Pullman Winter Ultras - Dec50 KMPullman, WADec 5, 2026——
Ray Miller 50/5050 KMMalibu, CADec 5, 20265,203 ft14 h
Ray Miller 50/5050 MilesMalibu, CADec 5, 20269,321 ft15 h
Salem 50k50 KMSalem, ORDec 5, 2026—8.5 h
San Joaquin River Trail 50K Run50 KMFriant, CADec 5, 20265,500 ft16 h
Sawmill Trail Runs50 KMPine, CODec 5, 20267,490 ft12 h
Shakori 40 Mile Running Festival40 MilesPittsboro, NCDec 5, 20262,400 ft10.5 h
TARC Winter Classic32 MilesStoneham, MADec 5, 20265,600 ft11 h
TARC Winter Classic40 MilesStoneham, MADec 5, 20267,000 ft—
Team Foster's Last Person StandingBackyard (4.167-mile yards)Conshohocken, PADec 5, 2026——
The Conquer Backyard UltraBackyard (4.167-mile yards)Dawsonville, GADec 5, 2026——
The Guv'nor Frozen 5050 KMDodgeville, WIDec 5, 20264,400 ft9 h
The Hitchcock Experience100 MilesHoney Creek, IADec 5, 202617,000 ft34 h
The Hitchcock Experience 50 Miles50 MilesHoney Creek, IADec 5, 20268,000 ft18 h
Dismal Swamp 50K50 KMChesapeake, VADec 6, 2026—9 h
Hivernale des Templiers - L'Astragale Trail65kmRoquefort-sur-Soulzon, FranceDec 6, 20267,484 ft14 h
Guana River50 KMPonte Vedra Beach, FLDec 6, 2026—9 h
Hunter S. Thompson Fear & Loathing 50 km50 KMSan Francisco, CADec 6, 20262,700 ft12 h
Hunter S. Thompson Fear & Loathing50 MilesSan Francisco, CADec 6, 20263,300 ft11 h
Pine Mountain Trail Run40 MilesPine Mountain, GADec 6, 20266,500 ft13 h
Pine Mountain Trail Run46 MilesPine Mountain, GADec 6, 2026—12.5 h
PPTC Endurance Fest50 KMBrooklyn, NYDec 6, 20261,100 ft13 h
PPTC Endurance Fest50 MilesBrooklyn, NYDec 6, 20262,000 ft15 h
Oman by UTMBJABAL CLASSICOman, OmanDec 10, 202616,404 ft30 h
Frigid Beast Feast102 MilesSpringfield, LADec 11, 2026—54 h
Frigid Beast Feast150 MilesSpringfield, LADec 11, 2026—54 h
Beast of the East 100100 MilesKings Mountain, NCDec 12, 202617,925 ft34 h
Beast of the East50 MilesKings Mountain, NCDec 12, 20269,538 ft30 h
Beast of the East100 KMKings Mountain, NCDec 12, 202611,862 ft30 h
Bell Ringer 50k Trail Run50 KMBurns, TNDec 12, 20263,800 ft9.5 h
Daytona 100 - Ultra100 MilesAtlantic Beach, FLDec 12, 20263,000 ft30 h
Daytona 100 - 50 km Ultra50 KMAtlantic Beach, FLDec 12, 2026130 ft24 h
Daytona 100 - Ultra50 MilesAtlantic Beach, FLDec 12, 2026400 ft24 h
Doomsday50 KMCool, CADec 12, 20265,100 ft9.5 h
Emerald Coast Ultra50 KMPensacola, FLDec 12, 2026—9 h
Emerald Coast Ultra50 MilesPensacola, FLDec 12, 2026—13.5 h
Frigid Beast Feast33 MilesSpringfield, LADec 12, 2026—30 h
Frigid Beast Feast51 MilesSpringfield, LADec 12, 2026—30 h
Frigid Beast Feast75 MilesSpringfield, LADec 12, 2026—30 h
Frozen Trail Run Fest50 KMEugene, ORDec 12, 20263,600 ft8 h
Hellgate 100 km100 KMLynchburg, VADec 12, 202613,849 ft18 h
Izu Trail Journey70kmMatsuzaki, JapanDec 12, 202610,636 ft14 h
Left Nut 5050 KMBristol, RIDec 12, 2026728 ft9 h
Left Nut 5050 MilesBristol, RIDec 12, 20261,120 ft13.5 h
Magnolia Magic River Trail Run50 KMPilot Hill, CADec 12, 20265,813 ft9 h
Magnus Gluteus Maximus50 KMClifton, VADec 12, 20264,000 ft9 h
MCW The Holmdel Classic50 KMHolmdel, NJDec 12, 20264,000 ft8 h
Endure BackyardBackyard (4.167-mile yards)Marsaskala, MaltaDec 12, 2026——
Naughty Hog50 KMValley View, TXDec 12, 20262,000 ft15 h
Naughty Hog100 KMValley View, TXDec 12, 20264,000 ft18 h
PhoMo 50k50 KMPhoenix, AZDec 12, 20266,080 ft11 h
Spirit of Syllamo100 MilesNorfork, ARDec 12, 202617,000 ft34 h
Spirit of Syllamo38 MilesNorfork, ARDec 12, 20266,300 ft12.5 h
Texmas Trail Race57 KMSmithville, TXDec 12, 20262,250 ft19 h
Texmas Trail Race104 KMSmithville, TXDec 12, 20264,000 ft20 h
The Frosty Buck Trail Race50 KMGlenmont, OHDec 12, 2026—9 h
Dallas 50K50 KMDallas, TXDec 13, 2026950 ft7.5 h
Dragon Trails 50K50 KMSan Antonio, TXDec 13, 2026—9 h
Coast to Coast Boso hanto67kmChiba Pref., JapanDec 13, 202611,404 ft13 h
Mel Williams Memorial Seashore50 KMVirginia Beach, VADec 13, 2026750 ft8.5 h
Palmetto Bluff Buffalo Run50 KMBluffton, SCDec 13, 2026—8 h
Race Austin: Holiday Victory Lap50 KMAustin, TXDec 13, 2026580 ft9 h
Tucson 50K50 KMOracle, AZDec 13, 2026450 ft8.5 h
Dudhsagar Ultra Trail, Goa100kmMollem, IndiaDec 16, 20262,133 ft15 h
Dudhsagar Ultra Trail, Goa54 kmMollem, IndiaDec 16, 20261,939 ft7.5 h
Quiet Silence 50K50 KMLake Mills, WIDec 18, 2026—8 h
8 Hours of Christmas50 KMMolena, GADec 19, 20267,600 ft9.333 h
Ancient Oaks 100 Mile Run100 MilesTitusville, FLDec 19, 20263,000 ft32 h
Meerdaalwoud Trail50kmBierbeek, BelgiumDec 19, 20262,461 ft8 h
Desert Solstice100 MilesPhoenix, AZDec 19, 2026—24 h
Les Courses du Père Noël134 kmLes Herbiers, FranceDec 19, 20268,698 ft25 h
Les Courses du Père Noël64 kmLes Herbiers, FranceDec 19, 20264,521 ft12 h
Les Courses du Père Noël68 kmLes Herbiers, FranceDec 19, 20264,094 ft12.88 h
Longest Night50 KMGreenville, SCDec 19, 2026—9 h
Longest Night50 MilesGreenville, SCDec 19, 2026—13.5 h
Lookout Mountain50 MilesLookout Mountain, GADec 19, 20267,600 ft13.5 h
Naked Nick 50 km Race50 KMLeesport, PADec 19, 20263,000 ft10 h
Paramount Ranch Trail Runs50 KMCalabasas, CADec 19, 2026——
Peace River 10050 KMBartow, FLDec 19, 2026——
River Bluff Trail Runs50 KMSt. Joseph, MODec 19, 20264,000 ft9 h
Rudolph & Roses50 KMTyler, TXDec 19, 2026——
Rudolph & Roses100 KMTyler, TXDec 19, 2026—20 h
Seth's Fat Ass50 KMSpringfield, MADec 19, 2026—9 h
Slough and Steady50 KMOzawkie, KSDec 19, 2026—9 h
Slough and Steady100 KMOzawkie, KSDec 19, 2026—19 h
Slough & Steady125 MilesOzawkie, KSDec 19, 2026—54 h
Charleston Itty Bitty 5050 MilesMount Pleasant, SCDec 20, 2026600 ft18 h
Texas Double50 KMDallas, TXDec 20, 2026—8.5 h
KAILAS FUGA SHENZHEN 100100 kmShenzhen, ChinaDec 25, 202621,145 ft30 h
KAILAS FUGA SHENZHEN 100165 kmShenzhen, ChinaDec 25, 202631,181 ft46.5 h
KAILAS FUGA SHENZHEN 10059 kmShenzhen, ChinaDec 25, 202613,340 ft19 h
Boyer's Furnace40 MilesLuray, VADec 26, 20266,500 ft12.5 h
Jupiter Ridge Sand Spur 50k50 KMJupiter, FLDec 26, 20262,800 ft9 h
Round the Bay Relay and Ultra36.8 MilesFort Walton Beach, FLDec 27, 20261,240 ft9.5 h
Across the Years100 MilesPeoria, AZDec 28, 20262,300 ft72 h
Across the Years200 MilesPeoria, AZDec 28, 20264,600 ft95 h
Across the Years100 KMPeoria, AZDec 28, 20261,428 ft72 h
Kyoto Great Round130kmKyoto, JapanDec 28, 202619,203 ft31 h
Kyoto Great Round100MilesKyoto, JapanDec 28, 202626,247 ft31 h
Kyoto Great Round200kmKyoto, JapanDec 28, 202632,808 ft45 h
Kyoto Great Round81 kmKyoto, JapanDec 28, 202612,470 ft18 h
Snowdrop Ultra100 MilesMissouri City, TXDec 30, 2026—55 h
Snowdrop Ultra50 KMMissouri City, TXDec 30, 2026——
Snowdrop Ultra50 MilesMissouri City, TXDec 30, 2026——
Snowdrop Ultra100 KMMissouri City, TXDec 30, 2026——
Go Big Race100 MilesHilo, HIDec 31, 20265,000 ft31.5 h
Go Big Race260 MilesHilo, HIDec 31, 202618,000 ft120.5 h
Go Big 50 km Race50 KMHilo, HIDec 31, 20260 ft9 h
Holiday Five50 KMWinter Park, FLDec 31, 2026—9.5 h
HTC Recover From the Holidays 50k50 KMHuntsville, ALDec 31, 20263,500 ft8 h
New Year's One Day100 MilesSan Jose, CADec 31, 2026—28 h
Run Undead Ultra Trail Party100 MilesPelham, ALDec 31, 20265,600 ft36 h
Run Undead Ultra Trail Party50 KMPelham, ALDec 31, 20261,700 ft29 h
Run Undead Ultra Trail Party50 MilesPelham, ALDec 31, 20262,800 ft20 h
Run Undead Ultra Trail Party100 KMPelham, ALDec 31, 20263,370 ft27 h