The Tor des Geants starts in Courmayeur today, and for the runners on the line the next week is less a race than a managed expedition. The TOR330 covers 330 kilometres with roughly 24,000 metres of ascent, looping through the Aosta Valley in northern Italy and returning to the town it left. The maximum time allowed is 150 hours, with the finish closing at 18:00 on Saturday 19 September and the awards ceremony held on the Sunday. Around 1,100 starters are expected to set off.
Numbers of that size stop being useful comparisons fairly quickly. The elevation gain is close to three ascents of Everest from sea level, and the distance is more than twelve marathons, but neither framing captures what actually decides the race. The Tor is won and lost on sleep management. There is no prescribed rest, only life bases spaced around the loop where runners can eat, change and lie down, and every hour spent horizontal is an hour not spent moving. The leaders typically take very little; most of the field takes considerably more and finishes anyway.
The route spends much of its length above 2,500 metres, crossing a succession of high passes where the weather does not need to be extreme to be consequential. Mid-September in the Alps can deliver warm valley afternoons and freezing exposed cols within the same twelve-hour stretch, and the mandatory kit list reflects that. Navigation in the dark, cumulative sleep deprivation and the simple mechanical wear of six days on technical ground combine to produce a finish rate that fluctuates year to year in ways the weather forecast largely explains.
The start also lands in the middle of an unusually busy fortnight in the ultra calendar. The Wasatch Front 100 closed the Grand Slam of Ultrarunning in Utah over the weekend, and the UTMB World Series has been running events across China, Switzerland, Malaysia and Turkey in the same window. For an event that once looked like a cult proposition on the far edge of the sport, the Tor now sits inside a crowded schedule of long races competing for the same small pool of runners willing to be awake for most of a week.
What to watch from here is mostly a matter of patience. The front of the race will thin out over the first two nights, and the order at the third life base tends to be a far better guide to the finish than anything from the opening climbs. For everyone else, the story is the one the Tor has always told: a field of amateurs moving through the Aosta Valley for the better part of a week, arriving back in Courmayeur in a condition that makes the 150-hour limit look less generous than it reads on paper.