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

Get ready to lace up and hit the trails, because the ultra running world is about to get a whole lot more exciting! From rugged mountain courses to scenic coastal routes, we've got the scoop on the most epic upcoming ultramarathons that will put your endurance to the test. Whether you're a seasoned pro or just starting out, we've got the inside track on the events that will challenge and inspire you to push your limits.

Editor's Pick: Idre Fjällmaraton

Aug 22 · Idre, SWE · marathon

Idre Fjällmaraton starts Aug 22 in Idre, SWE — a 45 km effort that headlines this week's calendar. Expect 1,410 m of vertical gain and a field capped near 1,500.

By Distance

100 Miles

• Habanero Hundred 100 Mile — Aug 21 · Cat Spring, TX, USA
  Tight 30h cutoff for 161 km
• Hjorthagen Ultra Trail 100 - 100M — Aug 22 · Stockholm, SWE
  100mi in SWE
• Caminhos de Rosa 150 Km — Sep 5 · Morro Da Garca, MG, BRA
  18,731,731 m of vertical gain
• Sörmlands 100 - 100mi — Sep 11 · Gripholms slott, Mariefred, SWE
  100mi in SWE
• Coal Miner — Sep 12 · Roslyn, WA, USA
  100mi in USA

100K

• Etna Extreme 100 km del Vulcano — Sep 6 · Bronte, ITA
  300 starters — well-established field
• Sörmlands 100 - 100km — Sep 12 · Öster Malma, Nyköping, SWE
  100k in SWE

50K – 50 Miles

• Grand Raid des Pyrénées - Tour du Bastan — Aug 20 · Pla d'Adet, FRA
  Big-stage field — 1,000 entry cap
• Grand Raid des Pyrénées - Tour du Moudang — Aug 20 · Piau-Engaly, FRA
  35,154,583 m of vertical gain
• Idre Fjällmaraton — Aug 22 · Idre, SWE
  Big-stage field — 1,500 entry cap
• Matterhorn Ultraks — Aug 22 · Zermatt, CHE
  Big-stage field — 1,500 entry cap
• EcoTrail Trondheim, 80km — Aug 22 · Trondheim, NOR
  Tight 14h cutoff for 80 km
• Orsières-Champex-Chamonix (OCC) — Aug 27 · Orsieres, CHE
  Big-stage field — 1,200 entry cap
• Highland Fling Race — Aug 29 · Milngavie/Glasgow, GBR
  Big-stage field — 1,000 entry cap
• Karwendellauf 52 km Scharnitz-Pertisau — Aug 29 · Scharnitz, AUT
  Big-stage field — 2,500 entry cap
• Khardung La Challenge (Ladakh Ultramarathon) — Sep 11 · Khardung Village, Ladakh, IND
  16,001,920 m of vertical gain

This Week in Numbers

• Biggest field: Karwendellauf 52 km Scharnitz-Pertisau — 2,500 starters
• Most climb: Grand Raid des Pyrénées - Tour du Moudang — 35,154,583 m gain
• Tightest cutoff: EcoTrail Trondheim, 80km — 14h for 80 km
• Furthest flung: Karwendellauf 52 km Scharnitz-Pertisau — AUT
• Longest day: Sörmlands 100 - 100mi — 171 km · 100mi

That's a hand-picked slice — see all 363 upcoming events on our race calendar.