The 2026 Tour de France arrives at its decisive week. Tadej Pogačar has the yellow jersey and a cushion that most eras would call comfortable — three and a half minutes on Jonas Vingegaard — and yet three Alpine stages, including back-to-back finishes on Alpe d'Huez, are the sort of terrain where cushions vanish. Here is what to watch across Stages 17 through 20, why the GC race is not yet closed, and the sub-plots hiding beneath the top of the table.
Where the GC stands
Pogačar has led the race since Stage 8 and extended his advantage on the Pyrenean stages of the second week. His third-week margin over Vingegaard sits at three minutes thirty-six — meaningful, but not the nine-minute buffer he took into the 2024 Alps. Remco Evenepoel is a further half-minute back in third and would need something exceptional to reach the top step, but the Belgian's time-trial firepower means he cannot be ignored in the race for the podium. Behind him, four riders sit inside two minutes of each other for the remaining podium scraps, headed by the second UAE Team Emirates rider Juan Ayuso and the 19-year-old Frenchman Paul Seixas, who has been the revelation of the race.
Stage 17: Chambéry to Voiron — the calm before
A 174.7-kilometre transitional day with two categorised climbs early and a flat run into Voiron. It is a stage that the sprinters left in the race — a shrinking group — will fight for, and the breakaway artists will squeeze into. Do not expect the yellow jersey to change shoulders. Do expect a nervous, wind-affected finale that could catch a distracted GC rider out. The pattern of this Tour has been for Pogačar to sit safely in the front group and let his UAE team-mates set the tempo; nothing about Stage 17 suggests a different playbook.
Stage 18: Voiron to Orcières-Merlette — the Alps open
The first of three mountain stages and, on paper, the softest. Riders will climb 3,900 metres across 185.2 kilometres, with the Côte d'Engins early and a summit finish at Orcières-Merlette that once crowned Eddy Merckx. The pattern to expect is a large breakaway going clear in the opening hour, with the GC teams monitoring behind. If Vingegaard is going to attack, this could be the stage he uses to soften Pogačar's team-mates rather than the leader himself — an approach Visma-Lease a Bike have leaned on before.
Stages 19 and 20: the Alpe d'Huez double
The queen stages. Two consecutive summit finishes on the same famous 21-hairpin climb, on back-to-back days. Stage 19 is the shorter of the two at 129 kilometres and features the ascent as a solo test after a rolling approach. Stage 20 is a full mountain marathon — 175 kilometres with the Galibier, the Croix de Fer, and Alpe d'Huez stacked back to back, more than 5,000 metres of climbing before the same finish line.
The strategic question is fascinating. Riders who go all-in on Stage 19 to reduce the deficit risk being empty for the harder Stage 20 that follows. Riders who conserve on Stage 19 risk letting the leaders settle. Vingegaard's staff has been unusually chatty in the pre-Alps press conferences, suggesting he will attack early and often. UAE has responded by naming Ayuso as Pogačar's designated shadow, freeing the yellow jersey to react without a domestique.
The three sub-plots
The green jersey race. Points-classification leader Jasper Philipsen has locked up most of the flat-stage points but the intermediate sprints in the Alps are still live, and rivals Jonathan Milan and Biniam Girmay can each close within striking distance if Philipsen loses ground on the climbs. The classification is decided on final overall points, not stages won, so a bad Alps could still cost him the shirt.
The polka dot jersey. The King of the Mountains competition has been dominated by breakaway hunters this Tour, with Lenny Martinez currently in the lead but with several riders inside striking range. The Alpine trilogy is packed with hors-catégorie climbs worth heavy points, so this classification could easily change hands three times before Sunday.
The white jersey. Best young rider looks locked up for Seixas, currently fifth on GC. Any move up the table only pads the margin. The 19-year-old will become the first French rider to win the white jersey since Romain Bardet in 2014, and the country's best overall Tour finish in more than a decade is now realistic.
Weather watch and rest day
The forecast for the Alpine trilogy is currently split — Stage 18 expects heat above 30°C in the valleys, Stage 19 has thunderstorm probability above the 2,000-metre line, and Stage 20 is presently projected to be clear and cool. Any change to that pattern could reshape tactics. Rain on an Alpe d'Huez descent has historically caused GC chaos; there is no descending after either Alpe finish this year, so wet-weather risk is concentrated in the approach climbs. The final rest day was Monday, meaning legs are as fresh as they will be for the finale.
How to watch in the US
Peacock carries every stage live in the United States, with NBC Sports picking up the weekend broadcasts. UK coverage is on TNT Sports and Discovery+, with ITV4 offering the free-to-air highlights package that still draws the largest daytime cycling audience in Europe. Start times for the Alpine stages sit in the 12:00–17:00 local French window, which is early morning to mid-afternoon on the US east coast.
FAQ
When does the Tour finish? Sunday July 26 on the Champs-Élysées in Paris, with the traditional processional final stage into the capital.
Can Pogačar still lose from here? Yes, but it would take a full collapse. A three-and-a-half-minute deficit has been overturned in three Alpine stages before — most famously by Andy Schleck on Contador in 2011 — but Pogačar would have to be dropped on two separate summit finishes, and there is no evidence in this year's racing that he can be dropped when it matters.
What happens if Vingegaard drops out? He entered the race with a shoulder injury from a spring crash and has looked shielded on descents. If he abandons, second place is Evenepoel's to lose. But there is no current suggestion he plans to withdraw.
Where can I follow live? Live cycling coverage, real-time gaps and jersey standings are on our live scores hub alongside every other sport, and our blog will post a stage-by-stage recap after each Alpine day.