2026-10 — remove filter12h — remove filter 319 races match · sorted by date · page 1 of 6

319 races found

Date Race Location Dist Climb Grit
18 Apr Cottontail 12 Hour Race Timed · climbing unknown Seattle, WA, United States — 131 m — 18 Apr Knallens Backyard Ultra Timed · climbing unknown Borås, Sweden — 47 m — 18 Apr ULTRA SANTA MARIA – DESAFIO IMEMBUÍ Timed · climbing unknown Santa Maria, RS, Brazil — — — 25 Apr DG24h - 12h Timed · climbing unknown Dabrowa Gornicza, Poland — — — 25 Apr SOBVL - Wuhlheider 12 Stundenlauf Timed · climbing unknown Berlin, Germany — — — 2 May White Lake Ultras 12 Hour Race Timed · climbing unknown Tamworth, NH, United States — — — 8 May K6 Czech Ultramarathon Festival - 12h Timed · climbing unknown Konstantinovy Lazne, Czechia — 12 m — 9 May Circle of The Dragon Timed · climbing unknown Meridian, MS, United States — — — 9 May Mind The Ducks 12 Hour Run Timed · climbing unknown Webster, NY, United States — — — 9 May Muddy Crudds Ultra Trail Party Timed · climbing unknown Valley, AL, United States — — — 9 May Speed Goat Ultra 12 Hour Race Timed · climbing unknown Broadview, MT, United States — — — 16 May High Lea 12 Hour Race Timed · climbing unknown Richfield, OH, United States — — — 16 May Kokkola Ultra Run 12h Timed · climbing unknown Kokkola, Finland — 1 m — 16 May Terwille Timed · climbing unknown Tynaarlo, Netherlands — — — 23 May Bubbletown What the Duck Ultra Timed · climbing unknown Boiling Springs, PA, United States — — — 23 May Farmmageddon 12h Timed · climbing unknown Buntingford, United Kingdom — 164 m — 23 May Nanny Goat 12 Hour Race Timed · climbing unknown Riverside, CA, United States — — — 23 May Vassøy Backyard Ultra Timed · climbing unknown Vassøy, Norway — — — 24 May Flagstaff Doggie Dash & Ultra Bash 12h Timed · climbing unknown Flagstaff, AZ, United States — — — 24 May Pfingstlauf Ruhrschleife Timed · climbing unknown Arnsberg, Germany — 70 m — 30 May BUFF-CEUS 12h European Cup Timed · climbing unknown Balatonfüred, Hungary — — — 30 May Hotfoot Hamster 12 Hour Run Timed · climbing unknown Buckeye, AZ, United States — — — 30 May Sri Chinmoy Self-Transcendence 12-Std.-Lauf Samorin Timed · climbing unknown Samorin, Slovakia — — — 30 May VAM12 Timed · climbing unknown Wijster, Netherlands — 100 m — 6 Jun Bashore Bash 12 Hr Timed · climbing unknown Jonestown, PA, United States — — — 6 Jun Death by Staircase 12hr Timed · climbing unknown Moreau, NY, United States — — — 6 Jun Jurassic Ultramarathon 12horas Timed · climbing unknown Santa Barbara D'Oeste, SP, Brazil — — — 6 Jun Neveresting Hafjell, 12h Timed · climbing unknown Hafjell, Norway — 590 m — 13 Jun Backyard Larvik Timed · climbing unknown Larvik, Norway — 90 m — 13 Jun Beisfjord backyard Ultra Timed · climbing unknown Narvik, Norway — — — 13 Jun Borne To Run 12h Spenden-Lauf Timed · climbing unknown Unna, Germany — 20 m — 13 Jun Cotter Bridge Ultra Timed · climbing unknown Cotter, AR, United States — — — 13 Jun Hell Løpefestival 12h Timed · climbing unknown Stjørdal, Norway — 1 m — 13 Jun Prambachkirchner 12-Stunden-Benefizlauf Timed · climbing unknown Prambachkirchen, Austria — 1 m — 13 Jun SF Half Day 12h Timed · climbing unknown San Francisco, CA, United States — — — 13 Jun Sri Chinmoy 12 Hour Race Rockland Lake Timed · climbing unknown Valley Cottage, NY, United States — — — 13 Jun Ultramaratón Zárate 12h Timed · climbing unknown Zárate, Argentina — — — 14 Jun Run for fun 12 Stundenlauf Timed · climbing unknown Marienfeld, Germany — 6 m — 20 Jun Orange Curtain 12 Hour Ultra Race Timed · climbing unknown Cerritos, CA, United States — — — 20 Jun Saltire 12 Timed · climbing unknown Strachan, United Kingdom — — — 21 Jun Limburger 12-Stunden-Lionslauf Timed · climbing unknown Elz, Germany — — — 21 Jun Medunarodni 12 casovni Timed · climbing unknown Palić, Serbia — — — 22 Jun Six Days in the Dome - The Redux 12h Timed · climbing unknown Milwaukee, WI, United States — — — 27 Jun Backyard Kirkenes Timed · climbing unknown Kirkenes, Norway — 84 m — 27 Jun Brooksvale 12-Hour Timed · climbing unknown Hamden, CT, United States — — — 27 Jun Cacapon 12 Hour Challenge Timed · climbing unknown Berkeley Springs, WV, United States — — — 27 Jun Invercargill Endurance Challenge - 12h Timed · climbing unknown Invercargill, New Zealand — — — 27 Jun Preikestolen Backyard Ultra Timed · climbing unknown Jørpeland, Norway — 80 m — 4 Jul Run for Fun 14.0 - 12h Timed · climbing unknown Saterland, Germany — — — 4 Jul Ryavallen Ultrafestival - 12h Timed · climbing unknown Borås, Sweden — — — 10 Jul Merrills Mile 12 Hour Run Timed · climbing unknown Dahlonega, GA, United States — — — 11 Jul Dirty Dozen 12h Endurance Run Timed · climbing unknown Pinole, CA, United States — — — 11 Jul Hope12 Timed · climbing unknown Plympton, United Kingdom — 200 m — 11 Jul Thetford 12 hour Timed · climbing unknown Thetford, United Kingdom — — — 18 Jul Cider 12h Day Challenge Timed · climbing unknown Minchington, United Kingdom — — — 18 Jul Hell Mary - 12h Timed · climbing unknown Pegram, TN, United States — — — 18 Jul Hell Mary - 12h Rucking Timed · climbing unknown Pegram, TN, United States — — — 18 Jul Hours of Lawrence Woods Timed · climbing unknown Medford, MA, United States — — — 18 Jul Miola Madness - Hot Summer Nights 12h Timed · climbing unknown Paola, KS, United States — — — 25 Jul Sweat Hot Oklahoma Summer Trials 12h Timed · climbing unknown Nowata, OK, United States — — —