Upcoming Ultras: 16 Races to Watch in the Next 30 Days

Get ready to lace up and hit the trails as we preview 16 epic ultramarathons from around the globe, featuring some of the most grueling distances imaginable - from 50k sprints to 200-mile testaments of endurance. From the rugged landscapes of Scandinavia to the rolling hills of Spain and the unforgiving terrain of Argentina, this week's lineup takes you on a thrilling journey across six continents, with stops in Sweden, Argentina, Canada, Spain, Poland, and Norway. Whether you're a seasoned ultrarunner or just starting to push your limits, there's something for everyone in this week's handpicked selection of ultra events.

Races to Watch

- Uka Pain - Int nod joll 100 miles — May 22 · 100mi · Älvdalen, SWE

- Uka Pain - Welest fomm painas 100km — May 22 · 100k · Älvdalen, SWE

- Desafio Punta Negra 100 km — May 22 · 100k · San Juan, ARG

- Uka Pain 52km — May 23 · 50k · Älvdalen, SWE

- Suffer on Centennial — May 23 · 100k · West Hawk Lake, MB, CAN

- Girona RunThrough Trail 103km — May 23 · 100k · Girona, ESP

- Jaga-Kora Orzel 105 — May 23 · 100k · Rymanow Zdroj, POL

- Lofoten Ultra Trail 100 Miles — May 29 · 100mi · Kirkefjorden, Moskenes, NOR

- 4 Öland Lighthouse Challenge - 100 miles — May 29 · 100mi · Långe Jan, Öland, SWE

- Weld Your Mettle Ultra Marathon — May 30 · 100mi · Windsor, CO, USA

- Ultra do Vulcão 350km — Jun 4 · 200mi+ · Poços de Caldas, MG, BRA

- Cape2Cape Ultra Marathon 100mi — Jun 6 · 100mi · Augusta, WA, AUS

- The Long Run Backyard Ultra — Jun 13 · 100mi · Fredericton, CAN

- Comrades Marathon — Jun 14 · 50mi · Durban, South Africa

- Burney Mountain 100 — Jun 19 · 100mi · Cassel, CA, USA

- Maldon M100 — Jun 20 · 100mi · Maldon, GBR

That's a hand-picked slice — see all 501 upcoming events on our race calendar.