Ultra trail race analysis and online trail running

Race analysis of real ultras, built from their own timing splits: what each course demands, how the field paced it and who reached the finish. You can also run a race yourself as an online race against the real field, without running a step.

Built from the race's own timing splits, with the terrain converted to its flat equivalent: the course profile coloured by how hard each stretch is, the hardest sections, median times at each checkpoint by level, how many starters finished, and how the course compares with the ones closest to it in effort. Free, no account needed.

Pick a race, set your level (or your UTMB Index) and your strategy: how hard you push and how long you stop at aid stations. Your run plays out against a field built from the real race, either live alongside the event on race day or as a replay of a past edition. You don't run a step.

Your ability (level or UTMB Index) and your strategy, plus the luck of the day. Faster runners place higher overall — but everyone races their own expected time too, so anyone can win by beating their day. And yes — you can DNF: the cut-offs are real, and so is going out too hard.

Yes, it's a free beta. The race analysis needs no account. To play, all you need is an email to save your run and its permanent link.

No — Ultra Trail Pro is an independent fan project. We use real race names and public results to point at real events; nothing here is official, and no affiliation with the events or their organisers is implied.