UTMB WORLD SERIES 2023: 34 RACES CALENDAR. Our 2023 TRAIL RUNNING CALENDAR travels to Chamonix today to review how it will be the second year of the joint closed circuit between Ironman and UTMB Group. And it is that, from this UTMB Chamonix 2023, only the “running stones” achieved in UTMB races will allow you […]
Tag Archives: 2023 calendar
