While teams scrambled to control the race, the stage saw tactical tension, a puncture for Jasper Philipsen, and mechanical issues for Jonas Vingegaard.
Baptiste Veistroffer Launches a Solo Breakaway from Nevers Magny-Cours
Baptiste Veistroffer’s Lone Offensive

The 12th stage, departing from the Magny-Cours automobile circuit, was marked by the persistent efforts of Baptiste Veistroffer. Known as the “sanglier de Fouesnant” (wild boar of Fouesnant), the Lotto-Intermarché rider initiated an attack at kilometer zero. Veistroffer has emerged as a central figure in the race, having already secured the prize for the most combative rider of the first week, in addition to earning the daily combativity award on two separate occasions. His intent on the 12th stage was clear, as he appeared well-positioned to secure a third such honor by choosing to distance the peloton entirely on his own at the start.
Veistroffer and Costiou Attempt to Outpace the Peloton
His solo effort persisted through much of the stage, though at one point, he was joined by three other riders: Damiano Caruso, Ewen Costiou, and Mattéo Vercher. By the 58-kilometer mark, the group had been reduced to just Veistroffer and Costiou, who held a 50-second lead over the peloton. Shortly thereafter, Veistroffer accelerated again, leaving Costiou behind to continue his mission as a lone leader. By the 49-kilometer mark, with Costiou having dropped back, Veistroffer remained alone at the front with a 40-second advantage. His effort was described as a “sacré numéro,” with little doubt remaining regarding the identity of the most combative rider of the day. By the 39-kilometer mark, his lead had been reduced to 30 seconds as the peloton moved closer, and with 33 kilometers remaining, Veistroffer was finally caught by a group of counter-attackers, with the main pack trailing by only 15 seconds.

Jasper Philipsen and Jonas Vingegaard Encounter Mechanical Setbacks
Peloton Chaos and Contender Setbacks
As the race progressed toward Chalon-sur-Saône, the atmosphere in the main pack grew increasingly volatile. The peloton navigated through changing weather conditions, with the return of heat following several kilometers of heavy rain. The second hour of the race was completed at an average speed of 45.7 km/h. Control of the pace fell to the NSN team, which took command to monitor the breakaway.
Individual contenders faced significant hurdles. Sprinter Jasper Philipsen suffered a puncture with 37 kilometers remaining, leaving him 30 seconds behind the peloton and forcing him to expend vital energy to return. Jonas Vingegaard, the Danish rider currently second in the general classification, also faced mechanical trouble. He was forced to change his bicycle with 54 kilometers left to ride and was assisted by two teammates to rejoin the peloton, a task he completed successfully.
The final kilometers saw a surge in aggression. With 35 kilometers to go, Quinn Simmons launched an attack from the front of the peloton, drawing several riders into his wheel, including Mads Pedersen. By the 33-kilometer mark, the sprint teams were reported to be “débordées,” or overwhelmed, as the race situation became increasingly urgent.
The Côte de Montagny-lès-Buxy Challenges the Peloton Before Chalon-sur-Saône
Technical Terrain and Final Approach

The route presented a “final piégeux” (tricky finish), featuring two primary difficulties. The first was an unlisted climb of approximately 8 kilometers at a slight gradient, which preceded a fast descent. The second was the Côte de Montagny-lès-Buxy, a 4th-category climb stretching 2.7 kilometers with an average gradient of 4.3%. The summit of this final climb was situated 19.7 kilometers from the finish line in Chalon-sur-Saône. These features were identified as critical points where teams might attempt to eliminate faster riders, setting the stage for a high-stakes conclusion to the 12th day of the Tour.
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