Tour Auvergne Stage 7: The Grand Colombier and the Race Before the Race

Yesterday's stage gave the race its current shape. Maxim Van Gils took the win at Crest-Voland from the front group, accelerating clear in the final kilometre of the first major mountain finish of the race. His teammate Luke Tuckwell rode into the yellow jersey — a Red Bull-BORA-hansgrohe double that is either brilliant team riding or the product of the strongest squad in this race's 2026 edition, depending on your interpretation of the identical jersey colours.

Today, Stage 7, is the race's real summit. Not because it is the longest or the highest — Stage 8's finale tomorrow will decide the overall. But because the Grand Colombier at 8.4 kilometres and 10.2 percent average gradient does not allow tactical evasion. The climb is steep enough that every gap opened on its slopes is proportional, honest, and difficult to reverse in 24 hours.

The peloton that rolled out of La Bridoire this morning knows what is at stake. So does Paul Seixas.

The Stage Profile

Stage 7's 133.6 kilometres from La Bridoire are not flat prologue to the summit. The route through the Ain and Bugey includes two earlier ascents — the Lacets du Grand Colombier and the Col de Richemond — that function as pre-selectors. They will not produce the decisive GC moves, but they will reduce the lead group before the mountain's final ramp. Teams riding for sprinters departed the GC conversations yesterday; this stage is ridden by climbers from the gun.

The Grand Colombier's race approach — 8.4 kilometres, 10.2 percent average — arrives with legs already carrying work. The upper sections of this climb push well above the average into gradients that strip away aerobic efficiency from athletes who aren't operating at their physical ceiling. The consistent double-digit gradient does not offer recovery stretches; it simply sustains.

The summit sits at 1,501 metres, which sounds modest beside the higher Alpine passes that the race will face next week at the Tour de France. At 10.2 percent average across 8.4 kilometres, it is harder than most Alpine passes that reach 2,000 metres.

The GC Situation: Tuckwell's Yellow, Seixas's Window

Luke Tuckwell wears yellow for Red Bull-BORA-hansgrohe, a jersey his team earned through Van Gils' win and strong team presence through Stage 6's mountain finish. Tuckwell is a capable climber with a solid GC record — but the question his yellow jersey creates is not about his ability to defend. It is about how long the GC favourites behind him decide to let him stay in it.

Paul Seixas is the name the entire week has been building toward. The 19-year-old Decathlon CMA CGM rider starts the stage second overall, and carries two specific forms of pressure into today's climb: the competitive pressure of a GC position that needs to be converted, and the biographical pressure of a rider who will line up at the Tour de France in July as a debutant. This race is his final credentialing opportunity. The Grand Colombier is the examination.

Seixas's climbing profile — compact, efficient at threshold, capable of sustained sustained power output on long steep gradients — suits today's finish better than Crest-Voland's shorter, punchier final ramp. If he was holding something back yesterday, this is the stage to spend it. The preview previews have framed the situation without ambiguity: Seixas and Del Toro are "forced to attack." Forced not by any external actor, but by arithmetic.

Isaac del Toro (UAE Team Emirates-XRG) enters the stage within range. The young Mexican climber has been the other narrative thread of this week's mountain stages — a rider with the altitude resistance and climbing power to shake any peloton on a steep summit, but carrying a gap that requires him to create the race rather than respond to it.

The climb does not allow the kind of exploratory attack that opens on a lower-gradient road — the pace-setters who hit the Grand Colombier's base and gradually lift tempo to see who responds. At 10.2 percent average, the climb has already made its selection by the time the race reaches the upper third. What it does allow is a single, fully-committed acceleration at the point where the gradient is at its highest and the surviving peloton's cohesion is under maximum pressure.

That acceleration, whenever it comes, will produce today's winner. It will also produce the clearest signal the Tour de France has received all week about which riders are operating at the level that the Alps in three weeks will require.

Why This Stage Matters Beyond the Race

The Tour Auvergne-Rhône-Alpes has been the traditional final preparation race before the Tour de France for decades — first as the Critérium du Dauphiné, now rebranded, the function unchanged. Every directeur sportif in the peloton is not just reading this stage's result; they are calibrating their Tour de France strategy based on who looks comfortable at 10.2 percent and who does not.

Seixas has never ridden the Tour de France. By the time Sunday's Stage 8 concludes this race, his form data will be more legible to the field he will face in the Alps than anything from earlier in the spring. The Grand Colombier is not just today's summit. It is the last transparent data point before the biggest race on the calendar.

For a guide to riding the Grand Colombier yourself — the approaches, the gradient, and why the Ain department is consistently underestimated as a cycling destination — see our Grand Colombier cycling route guide. For yesterday's Stage 6 coverage at Crest-Voland, see our Stage 6 field report.