Every summer, in Isère and elsewhere, trail races follow one after another: L'Échappée Belle in Belledonne, the Tour des 6 Vallées de l'Oisans, the Ultra-Trail des 4 Massifs (UT4M). And behind every bib sold, there's now a marketing plan, whether it comes from a gear brand, a race organizer, or a tourist board.
A market built around the runner
About 1.4 million French people run trail races according to the Running Observatory, and that figure is enough to turn heads well beyond gear manufacturers alone. Shoes, connected watches, apparel, nutrition: a whole commercial ecosystem has built up around this audience, described by Simon Lancelevé, who teaches on the University of Grenoble Alpes' trail-running degree program, as still largely drawn from well-off backgrounds, with women's participation growing only slowly (Les Affiches de Grenoble et du Dauphiné, 2026).
The races themselves are becoming more professional. The UT4M, deliberately capped at 4,500 runners by its organizers, generates around €2 million in local economic spin-offs on its own, through hotel nights and meals, notes Jean-Yves Costa, communications officer at Grenoble Outdoor Aventure. For this event, half the runners come from the Auvergne-Rhône-Alpes region, 35% from the rest of France, and the remainder from abroad: a mobile, captive audience, ready to travel for a bib.
What it costs, beyond the bib
This success has a flip side. The carbon impact, for a start: support vehicles sometimes cover the runner's route twice over. But above all, a very real consumption of space. "When you take a bib, you consume space," sums up Simon Lancelevé.
Trail running is energy-intensive, beyond just the runner's own energy, particularly through soil erosion. The idea of scale adds further pressure. The balance hasn't been found yet.
A customer base you don't monetize right away
What makes this interesting from a marketing standpoint is that tourist boards know it perfectly well. "She's running past, she's not going to stop at the mountain huts," observes Émilie Carpentier, director of Isère Attractivité, speaking of trail runners. The real strategy isn't to sell something during the race itself: "trail running is also a formidable way to introduce people to a territory and make them want to come back after a race," she adds. A customer base you don't monetize on race day, but cultivate for years to come.
Personal takeaway
This is exactly the kind of tension I love observing in the outdoors: the same practice can be read as an economic opportunity or as pressure on the territories it crosses, depending on who's looking at it. And what strikes me most is the marketing maturity behind this approach: betting on a lasting impression rather than an immediate conversion is a brand strategy, not an event strategy.
Has a race ever made you want to return to a region, long after you crossed the finish line?
