50K ultramarathons in Chiang Rai, Thailand in 2026

TrailRoadTrack

BackyardRelayStage

Point to pointSingle loopMultiple loopsOut & back

BeginnerIntermediateHardHardest

≥

:

AfghanistanÅland IslandsAlbaniaAlgeriaAndorraAngolaAnguillaAntarcticaAntigua and BarbudaArgentinaArmeniaArubaAustraliaAustriaAzerbaijanBahamasBahrainBangladeshBarbadosBelarusBelgiumBelizeBeninBermudaBhutanBoliviaBosnia and HerzegovinaBotswanaBrazilBritish Virgin IslandsBruneiBulgariaBurkina FasoBurundiCambodiaCameroonCanadaCape VerdeCayman IslandsCentral African RepublicChadChileChinaColombiaComorosCongoCosta RicaCroatiaCubaCuraçaoCyprusCzech RepublicDemocratic Republic of the CongoDenmarkDjiboutiDominicaDominican RepublicEcuadorEgyptEl SalvadorEquatorial GuineaEritreaEstoniaEswatiniEthiopiaFaroe IslandsFijiFinlandFranceFrench GuianaGabonGambiaGeorgiaGermanyGhanaGibraltarGreeceGrenadaGuadeloupeGuamGuatemalaGuernseyGuineaGuinea-BissauGuyanaHaitiHondurasHong KongHungaryIcelandIndiaIndonesiaIranIraqIrelandIsle of ManIsraelItalyIvory CoastJamaicaJapanJerseyJordanKazakhstanKenyaKiribatiKosovoKuwaitKyrgyzstanLaosLatviaLebanonLesothoLiberiaLibyaLiechtensteinLithuaniaLuxembourgMacauMadagascarMalawiMalaysiaMaldivesMaliMaltaMarshall IslandsMartiniqueMauritaniaMauritiusMayotteMexicoMoldovaMonacoMongoliaMontenegroMontserratMoroccoMozambiqueMyanmarNamibiaNauruNepalNetherlandsNew CaledoniaNew ZealandNicaraguaNigerNigeriaNorfolk IslandNorthern Mariana IslandsNorth KoreaNorth MacedoniaNorwayOmanPakistanPalauPanamaPapua New GuineaParaguayPeruPhilippinesPolandPortugalPuerto RicoQatarRéunionRomaniaRussiaRwandaSaint Kitts and NevisSaint LuciaSaint MartinSaint Pierre and MiquelonSaint Vincent and the GrenadinesSamoaSan MarinoSão Tomé and PríncipeSaudi ArabiaSenegalSerbiaSeychellesSierra LeoneSingaporeSint MaartenSlovakiaSloveniaSolomon IslandsSomaliaSouth AfricaSouth KoreaSouth SudanSpainSri LankaSudanSurinameSvalbard and Jan MayenSwedenSwitzerlandSyriaTaiwanTajikistanTanzaniaThailandTimor-LesteTogoTongaTrinidad and TobagoTunisiaTurkeyTurkmenistanTurks and Caicos IslandsTuvaluUgandaUkraineUnited Arab EmiratesUnited KingdomUnited StatesUruguayUS Virgin IslandsUzbekistanVanuatuVenezuelaVietnamWestern SaharaYemenZambiaZimbabwe

2025202620272028

WinterSpringSummerFall

UTMB IndexUTMB World SeriesUTMB World Series Majors

50K ultramarathons in Chiang Rai, Thailand in 2026

Filters

Doi Chang Trail

Big Blue Ruammit Ultra Trail

50K ultramarathons in Chiang Rai, Thailand in 2026

Filters

Terrain

Format

Course

Distance1

Elevation

Difficulty

Cutoff

Continent

Country1

Region1

Year1

Season

Month

UTMB Qualification

Doi Chang Trail

Big Blue Ruammit Ultra Trail