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Ultramarathon Database

Western States 100 Qualifiers

Western States selects its field primarily through a lottery: finish a qualifying race, then enter the December draw. Each year you complete a qualifying race, your odds go up. Below are the 2027 dates and details, the qualifying races, and the lottery odds.

The 2027 lottery

The 2027 lottery is drawn on Saturday, December 5, 2026. To enter it, finish a qualifying race between November 3, 2025 and November 8, 2026, then apply during the three-week window that November. Only races on the official list count, and the field starts 369. Elites have a faster path: the Golden Ticket races award automatic entries to their top finishers.

Lottery rules and application ↗

Qualifying races

All 262 races on the official qualifying list for the 2027 lottery, alphabetical. The time is the qualifying standard for that distance; a race with a page here links to its dates, results, and how to enter.

RaceDistanceLocationDateTime
Angeles Crest100MCaliforniaAug 202633 hours
Arc of Attrition by UTMB100MEnglandJan 202636 hours
Arkansas Traveller100MArkansasOct 202630 hours
Aso Volcano Trail115kmJapanMay 202628 hours
Autumn100MEnglandOct 202628 hours
Beacons Way Ultra 100kmnew100kmWalesJul 202621 hours
Beacons Way Ultra 100 Milenew100MWalesJul 202640 hours
Bear, The100MUtahSep 202636 hours
Beaverhead100kmIdaho/MontanaJul 202620 hours
Bigfoot 200206MWashingtonAug 2026100 hours
Bighorn100MWyomingJun 202635 hours
Black Canyon100kmArizonaFeb 202617 hours
Blackall 100k100kmAustraliaOct 202618 hours
Bootlegger 100new100MGeorgiaMar 202635 hours
Borneo Ultra-Trail Marathon106kmMalaysiaApr 202636 hours
Brazil 135150MBrazilJan 202670 hours
Brazil 135135MBrazilJan 202660 hours
Brazil 135100MBrazilJan 202640 hours
Brazil 13580MBrazilJan 202632 hours
Brazos Bend100MTexasDec 202532 hours
Brink 100 mile trail runnew100MOregonJul 202631:40
Buffalo Stampede 100k100kmAustraliaMar 202623 hours
Burning River100MOhioJul 202632 hours
C&O Canal 100100MMarylandApr 202630 hours
Cameron Ultra-Trail100kmMalaysiaJul 202628 hours
Canadian Death Race118kmCanadaAug 202624 hours
Canal Corridor100MOhioOct 202630 hours
Canyons by UTMB104kmCaliforniaApr 202620 hours
Canyons by UTMB100MCaliforniaApr 202635 hours
Cascade Crest100MWashingtonJul 202634 hours
Chester Ultra 100new100MEnglandApr 202632 hours
Chianti Castles by UTMB120kmItalyMar 202624 hours
Cocodona250MArizonaMay 2026125 hours
Courmayeur Champex Chamonix (CCC)100kmItalyAug 202625 hours
Crazy Mountain100MMontanaJul 202636 hours
Cruel Jewel106MGeorgiaMay 202648 hours
Cuesta X Trailnew100kmThailandNov 202627 hours
Cuyamaca100kmCaliforniaOct 202617 hours
Desert RATS by UTMB100kmColoradoApr 202618 hours
Dinosaur Valley100kmTexasNov 202522 hours
Dinosaur Valley100MTexasNov 202535 hours
DL 100106kmChinaMay 202626 hours
Eastern States100MPennsylvaniaAug 202636 hours
Eiger Ultra Trail by UTMB101kmSwitzerlandJul 202622 hours
Eiger Ultra Trail by UTMB250kmSwitzerlandJul 202690 hours
Endurance Trail des Templiers105kmFranceOct 202619 hours
Fat Dog120MCanadaAug 202648 hours
Fat Dog100kmCanadaAug 202622 hours
Fjällmaraton 100knew100kmSwedenJul 202620 hours
Formosa Trail104kmTaiwanNov 202528 hours
Fun Trails Chichibu & Okumusashi105kmJapanNov 202530 hours
Fun Trails Chichibu & Okumusashi100MJapanNov 202532 hours
Georgia Death Race74MGeorgiaMar 202624 hours
Golden Ring100kmRussiaJul 202618 hours
Gorge Waterfalls100kmOregonApr 202617 hours
Gran Trail Courmayeur100kmItalyJul 202628 hours
Gran Trail Peñalara110kmSpainOct 202625 hours
Grand Raid La Reunion162kmReunionOct 202650 hours
Grand Raid des Pyrénées - Tour de Cirques123kmFranceAug 202640 hours
Grand Raid des Pyrénées - Ultra 160160kmFranceAug 202648 hours
Grand Raid Ventoux by UTMB124kmFranceApr 202626 hours
Grand Trail des Lacs et Châteaux165kmBelgiumMay 202640 hours
Great Wall by UTMBnew103kmChinaSep 202622 hours
Grindstone by UTMB100MVirginiaSep 202636 hours
Grindstone by UTMB100kmVirginiaSep 202618 hours
Grossglockner Ultra-Trail110kmAustriaJul 202628 hours
Guzzler Ultra100kmAustraliaJul 202624 hours
Hallucination (Run Woodstock)100MMichiganSep 202630 hours
Hardcore Ultra Trail (HUT)100MPhilippinesMay 202644 hours
Hardrock100MColoradoJul 202648 hours
Hellbender100MNorth CarolinaMay 202640 hours
Hellgate100kmVirginiaDec 202518 hours
Hennepin100MIllinoisOct 202630 hours
High Lonesome100MColoradoJul 202637 hours
HOKA Bandera100kmTexasJan 202618 hours
HOKA Chiang Mai Thailand by UTMB Chiang Dao 160162kmThailandDec 202548 hours
Hong Kong 100100kmHong KongJan 202623 hours
Hood Hundred100MOregonJul 202634 hours
HURT100MHawaiiJan 202636 hours
IMTUF100MIdahoSep 202636 hours
Indiana100MIndianaOct 202630 hours
Istria by UTMB110kmCroatiaApr 202624 hours
Istria by UTMB168kmCroatiaApr 202646 hours
Javelina Jundred100MArizonaOct 202630 hours
Javornicka 100105kmSlovakiaOct 202624 hours
Julian Alps Trail Run by UTMB120kmSloveniaSep 202626 hours
Kaga Spa Trail by UTMBnew105kmJapanJun 202626 hours
Karkloof100MSouth AfricaSep 202636 hours
Kerry Way Ultra101kmIrelandSep 202620 hours
Kerry Way Ultra193kmIrelandSep 202640 hours
Kettle Moraine100MWisconsinJun 202630 hours
Kierat100kmPolandMay 202627 hours
Kodiak Ultra Marathons by UTMB100MCaliforniaOct 202636 hours
Kodiak Ultra Marathons by UTMB100kmCaliforniaOct 202619 hours
Kosciusko by UTMB100kmAustraliaDec 202520 hours
Kosciusko by UTMB30 minutes added for 2025 race due to weather100MAustraliaDec 202536:30 hours
Krakonosova Stovka100kmCzech RepublicJun 202622 hours
Kullamannen by UTMB100MSwedenNov 202632 hours
La H.O.T. du Père Noël133kmFranceDec 202525 hours
La Mision120kmArgentinaFeb 202645 hours
La Mision160kmArgentinaFeb 202672 hours
La Mision200kmArgentinaFeb 202675 hours
Lake Biwa 100100MJapanOct 202652 hours
Lakeland100MEnglandJul 202640 hours
Lake Zuri Endurance Run106kmSwitzerlandMar 202618 hours
Laurel Highlands70.5MPennsylvaniaJun 202620 hours
Lavaredo Ultra Trail by UTMB120kmItalyJun 202626 hours
Leadville Trail100MColoradoAug 202630 hours
Łemkowyna Ultra-Trail150kmPolandOct 202635 hours
Leona Divide100kmCaliforniaApr 202620 hours
Leona Divide100MCaliforniaApr 202633 hours
Les Coursières des Hauts du Lyonnais111kmFranceMay 202620 hours
Letecka Stovka104kmSlovakiaMar 202621 hours
Long Haul100MFloridaJan 202630 hours
Lost Soul Ultra100kmCanadaSep 202621 hours
Lost Soul Ultra100MCanadaSep 202633 hours
Madeira Island Ultra-Trail110kmPortugalApr 202629 hours
Malaysia Ultra Trail by UTMB100kmMalaysiaSep 202526 hours
Mallorca by UTMB: Camins de pedra seca (CPS)102kmSpainNov 202618 hours
Mallorca by UTMB: Serra de Tramuntana (SDT)135kmSpainOct 202630 hours
Malnad Ultra100kmIndiaNov 202521 hours
Mamba 100100MTennesseeNov 2025 & 202634 hours
Mammoth 200new200MCaliforniaOct 2026100 hours
Massanutten100MVirginiaMay 202636 hours
Miwok100kmCaliforniaMay 202615:30:59 hours
Moab238MUtahOct 2026108 hours
Mogollon Monsternew100MArizonaSep 202638 hours
Mohican100MOhioMay 202632 hours
Monte Rosa WalserWaeg by UTMB - LSVnew122kmItalyJul 202636 hours
Mount Yun by UTMB - UMY159.6kmChinaOct 202648 hours
Mountain Lakes100MOregonSep 202630 hours
Mozart 100 by UTMB120kmAustriaMay 202623 hours
Mt. Fuji 100100MJapanApr 202646 hours
MUSPO 100100kmPhilippinesJul 202624 hours
Never Summer100kmColoradoJul 202624 hours
Nice Côte d'Azur by UTMB107kmFranceSep 202628 hours
Nice Côte d'Azur by UTMB159kmFranceSep 202648 hours
Nike ACG Ultra-Trail Chongli168kmChinaJul 202648 hours
Nike ACG Ultra-Trail Chongli100kmChinaJul 202624 hours
Ninghai Ultra Trail109kmChinaOct 202624 hours
No Business100MTennesseeOct 202634 hours
North Downs Way100MEnglandAug 202630 hours
Nuts Ylläs Pallas100kmFinlandJul 202622 hours
Nuts Ylläs Pallas160kmFinlandJul 202635 hours
Nuts Ylläs Pallas327kmFinlandJul 2026100 hours
Okushinano100kmJapanJun 202621 hours
Oregon Cascades100MOregonAug 202632:01:18
OSJ Ontake100kmJapanJul 202620 hours
OSJ Ontake100MJapanJul 202624 hours
Paraty Brazil by UTMB108kmBrazilSep 202626 hours
Patagonia Run110kmArgentinaApr 202627 hours
Patagonia Run100MArgentinaApr 202642 hours
Penyagolosa106kmSpainApr 202626 hours
Pinhoti100MAlabamaNov 202632 hours
Pong Yaeng Trail160kmThailandOct 202648 hours
Pong Yaeng Trail100kmThailandOct 202631 hours
Puglia by UTMB Sassi di Materanew144kmItalyOct 202627 hours
Quebec Mega Trail135kmCanadaJul 202632 hours
Quicksilver100kmCaliforniaMay 202617 hours
Rabid Raccoon100MPennsylvaniaMay 202636 hours
Rabid Raccoon100kmPennsylvaniaMay 202622 hours
Restonica Trail by UTMB - Ultra-Trail® di Corsica110kmFranceJul 202636 hours
Rim to River100MWest VirginiaOct 202632 hours
Rio Del Lago100MCaliforniaNov 202630 hours
Rocky Raccoon 100 by USWE100MTexasFeb 202630 hours
Run Rabbit Run100MColoradoSep 202636 hours
Saddles 100100MArizonaOct 202634 hours
Salomon Cappadocia Ultra-Trail119kmTurkeyOct 202623 hours
Salomon Ultra-Trail Hungary112kmHungaryMay 202620 hours
San Diego100MCaliforniaJun 202632 hours
Scott TMBT109kmMalaysiaSep 202630 hours
Sean O'Brien100kmCaliforniaFeb 202617 hours
Sedona Canyons 125125MArizonaMay 202652 hours
Shinetsu Five Mountains Trail110kmJapanSep 202622 hours
Shinetsu Five Mountains Trail100MJapanSep 202633 hours
Siskiyou Out Back100kmOregonJul 202618 hours
SkyRunshortened due to weather, not a qualifying race for 2027100kmSouth AfricaNov 202528 hours
SkyView Trail110kmJapanSep 202630 hours
SkyView Trail138kmJapanSep 202638 hours
Soria Moria til Verdens Ende (SMVE)100MNorwayMay 202635 hours
South Downs Way100MEnglandJun 202630 hours
Sulphur Springs100kmCanadaMay 202618 hours
Sulphur Springs100MCanadaMay 202630 hours
Superior Fall 100100MMinnesotaSep 202638 hours
Surf Coast Century100kmAustraliaSep 202617 hours
Swiss Alps100kmSwitzerlandAug 202625 hours
Swiss Alps100MSwitzerlandAug 202650 hours
Swiss Canyon Trail111kmSwitzerlandJun 202624 hours
SwissPeaks100kmSwitzerlandSep 202628 hours
SwissPeaks170kmSwitzerlandSep 202658 hours
SwissPeaks360kmSwitzerlandSep 2026156 hours
SwissPeaks700kmSwitzerlandSep 202610 days
Tahoe 200202MCaliforniaJun 2026100 hours
Tahoe Rim Trail100MNevadaJul 202636 hours
Tahoe Rim Trail100kmNevadaJul 202620 hours
Tarawera by UTMB102kmNew ZealandFeb 202617 hours
Tarawera by UTMB100MNew ZealandFeb 202636 hours
Taupo100kmNew ZealandOct 202617 hours
TDS (Sur les Traces des Ducs de Savoie)147kmItalyAug 202644:10 hours
Tenerife Bluetrail by UTMBcanceled due to weather110 kmSpainJun 202626 hours
TERREX Lake Sonoma 100k100kmCaliforniaApr 202619 hours
Thames Path 100100MEnglandApr 202630 hours
TOR100 - Cervino-Monte Bianco100kmItalySep 202638 hours
TOR130 - Tot Dret130kmItalySep 202644 hours
TOR330 - Tor de Géants330kmItalySep 2026132 hours
Trail 100 Andorra by UTMB105kmAndorraJun 202630 hours
Trail Alsace Grand Est by UTMB - Ultra-Trail des Chevaliers158kmFranceMay 202640 hours
Trail Alsace Grand Est by UTMB - Ultra-Trail des Païens109kmFranceMay 202621 hours
Trail de Conímbriga Terras de Sicó111kmPortugalJun 202624 hours
Trail des Gombak100kmMalaysiaJun 202630 hours
Trail du Saint-Jacques by UTMB130kmFranceJun 202628 hours
Trail Verbier St Bernard by UTMB140kmSwitzerlandJul 202640 hours
Transgrancanaria125kmCanary IslandsFeb 202628 hours
Transjeju by UTMB107kmSouth KoreaOct 202625 hours
Transjeju by UTMB150kmSouth KoreaOct 202637 hours
TransLantau by UTMB120kmHong KongNov 202536 hours
Tunnel Hill100MIllinoisNov 202530 hours
Tuscany Crossing103kmItalyApr 202621 hours
Tuscany Crossing160kmItalyApr 202635 hours
Twisted Branch100kmNew YorkAug 202620 hours
Ulju Trail Nine Peaks128kmSouth KoreaOct 202640 hours
Ultra Tour Monte Rosa170kmSwitzerlandSep 202660 hours
Ultra Trail Amanecer Comechingón120kmArgentiaOct 202632 hours
Ultra Trail Amanecer Comechingón100kmArgentiaOct 202626 hours
Ultra Trail do Marão120kmPortugalMar 202632 hours
Ultra Trail Drakensberg100kmSouth AfricaApr 202623 hours
Ultra Trail Drakensberg163kmSouth AfricaApr 202648 hours
Ultra Trail Sierras del BandoleroCancelled due to weather166kmSpainMar 202640 hours
Ultra Trail Vipava Valley106kmSloveniaMay 202625 hours
Ultra Trail Vipava Valley165kmSloveniaMay 202646 hours
Ultra-Trail Australia by UTMB100kmAustraliaMay 202619 hours
Ultra-Trail Australia by UTMB100MAustraliaMay 202644:30 hours
Ultra Trail Cape Town100kmSouth AfricaNov 202521 hours
Ultra Trail Cape Town100MSouth AfricaNov 202545 hours
Ultra Trail Du Mont-Blanc (UTMB)100MFranceAug 202646:30
Ultra Trail Harricana125kmCanadaSep 202626 hours
Ultra Trail Snowdonia by UTMB100kmWalesMay 202628 hours
Ultra Trail Snowdonia by UTMB165kmNorth WalesMay 202648 hours
Umstead100MNorth CarolinaApr 202630 hours
Val d’Aran by UTMB, Camins de Hèr110kmSpainJul 202626 hours
Val d’Aran by UTMB, Torn dera Val d’Aran168kmSpainJul 202636 hours
Valhöll Fin del Mundo by UTMBcancelled due to weather131kmArgentinaMar 202630 hours
Valleys Ultra (7)110kmEnglandSep 202625 hours
Valleys Ultra (13)180kmEnglandSep 202646.5 hours
Vermont100MVermontJul 202630 hours
Vermont100kmVermontJul 202617 hours
Vietnam Mountain Marathon100kmVietnamSep 202627 hours
Vietnam Mountain Marathon100MVietnamSep 202644 hours
Vulcano Ultra Trail100kmChileDec 202524 hours
Waldo100kmOregonAug 202618 hours
Wasatch Front100MUtahSep 202636 hours
West Highland Way95MScotlandJun 202635 hours
Western States100MCaliforniaJun 202630 hours
Wildstrubel by UTMB110kmSwitzerlandSep 202627 hours
Whistler by UTMBnew100kmCanadaAug 202624 hours
Worlds End100kmPennsylvaniaJun 202619 hours
Xiamen by UTMBnew104kmChinaMar 202624 hours
Yeti100MVirginiaSep 202630 hours
Zion100kmUtahApr 202620 hours
Zion100MUtahApr 202636 hours
Zugspitz106kmGermanyJun 202625 hours
ZugspitzShortened to 107km, qualifying time 24 hours.100MGermanyJun 202648 hours

From wser.org, retrieved July 19, 2026. WSER updates the official list each September.

Lottery odds

Each year you enter the lottery, don't get selected, and run another qualifying race, your tickets double for the next year's draw. These are the odds from the December 2025 lottery, when 11,328 applied for 257 spots:

Year appliedTicketsChance of selection
1st10.3%
2nd20.6%
3rd41.2%
4th82.4%
5th164.8%
6th329.4%
7th6418.0%
8th12832.7%
9th25654.8%
10th51279.6%