A week on from the spectacle of the Broken Arrow Skyrace in California, the Merrell Skyrunner World Series swings to South America for one of its most uncompromising stops of the season. On Saturday 28 June, the Ibarra Skyrace climbs out of the city of Ibarra in northern Ecuador and into the volcanic high country of the Andes, a course steeped in Andean identity and built around the kind of steep, thin-air running that defines elite skyrunning.
The numbers tell the story. The race packs more than 2,000 metres of vertical gain into roughly 21 kilometres, with the route rising relentlessly from near the city to a high point of around 4,560 metres above sea level before returning along the same rugged terrain. Loose volcanic soil, rocky technical segments and exposed ridgelines combine with sharply thinning air, so that altitude adaptation becomes as decisive as raw fitness. It is short, sharp and brutally demanding, exactly the profile that separates pure mountain specialists from the rest of the field.
Ibarra earned its place on the 2026 calendar after a strong debut, joining recent additions such as Ueda and the Andes Mountain Race as the series continues to broaden its global footprint. For the world's leading skyrunners, the Ecuadorian round is both a standalone challenge and a chance to bank valuable series points, with the overall standings tightening as the campaign reaches its mid-point. The course also forms part of the U23 Trofeo Esteban Olivero circuit, giving the next generation of mountain runners a stage of their own alongside the elite race.
Racing at altitude reshapes tactics in ways that flat trail events never demand. Pacing the lower climbs conservatively, managing effort against oxygen debt and judging the technical descent all carry outsized consequences when the summit sits well above 4,500 metres. Athletes arriving from sea level face a particular gamble, and acclimatisation strategies, or the lack of them, often decide who fades and who finishes strongly through the closing kilometres.
For followers of the series, Ibarra offers a compelling contrast to the better-known European rounds, swapping the Alpine backdrop of races such as Zegama for raw Andean volcanoes and high-altitude grit. With a global field drawn to the challenge and the wider series narrative still wide open, the Ecuadorian skyrace promises a true test of mountain craft and a vivid reminder of skyrunning's appetite for the extreme.