UTMB World Series Calendar 2026
The UTMB World Series Calendar 2026 features over 50 events and more are being added. Check the UTMB for their latest events list. Name Date (2026) CCC Distances (≥50K only) Website Arc of Attrition by UTMB 22–25 Jan GBR 50K / 100M Site Chianti by UTMB 19–22 Mar ITA 50K / 100K / 100M (check) Site Tenerife Bluetrail by UTMB 19–21 Mar ESP 100K (and ≥50K options – check) Site Istria by UTMB 09–12 Apr HRV 50K / 100K / 100M (check) Site Ultra‑Trail Mogan 10–12 Apr CHN 50K /…
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