The 23-hour, 50-minute, and 42-second mark is hanging by a thread on the technical trails of Pontedilegno-Tonale. After fifteen years of analyzing physical attrition in ultra-endurance racing, rarely has the tension been as palpable as it is this year at the Adamello Ultra Trail 170 km. It’s not just the flagship distance; it’s the technical challenge of its 11,500 meters of elevation gain that has lured an elite field ready to shatter Peter Kienzl’s historic course record on a route that offers no respite.
The Lombardy Leg-Breaker
Vezza d'Oglio becomes the epicenter this Friday, September 25, of a tactical battle where lactate threshold management in the first 60 kilometers will determine who survives the night. The 100-mile course is an open-air war museum, traversing Great War trenches, but for the frontrunners, the scenery is secondary to the verticality of passes like Forcellina di Montozzo. Paddock rumors suggest that recent rains have left the single tracks exceptionally technical, favoring runners who excel at aggressive descents.
Pacing and Strategy in the Shorter Distances
While the media spotlight shines on the ultra, the Adamello Trail 100 km, with its 6,050 meters of climbing, is shaping up to be the weekend’s most explosive race. There is no room for conservation here; it’s an endurance sprint where the split at the Passo Tonale aid station usually seals the deal. Meanwhile, the Adamello Half Trail 60 km has seen a surge in the quality of the field, becoming the ultimate test for skyrace specialists looking to step up to longer distances without yet facing the psychological wall of the deep night.
On Saturday the 26th, the action moves to Monno for the Adamello Short Trail 35 km. With 2,200 meters of elevation gain on a much more twitchy course, this event will force athletes to maintain a steady heart rate at the anaerobic threshold. Weather forecasts for the Lombardy region predict a significant temperature drop during Friday night—a factor that could compromise hydration and thermoregulation for those eyeing the podium in the main event. The key will be adapting to the exposed ridges, where the Adamello wind often forces runners who gamble with ultralight gear to pay a heavy price.