On the following day, Stage 12, Dumoulin again finished second to Thomas, in a sprint finish at Alpe d'Huez. Thomas, Dumoulin and Froome arose as the likely contenders for overall victory in Paris. On Stage 17, the first of the three Pyrenean stages, a stage to the summit of the Col de Portet, Thomas extended his lead by placing third behind stage winner Nairo Quintana of Movistar Team. Froome's challenge faded on the approach to the summit and he dropped to third position in the general classification, 2:31 behind Thomas. Dumoulin moved into second place, 1:59 off the lead. On the mountainous stage nineteen from Lourdes to Laruns, Primož Roglič of LottoNL-Jumbo attacked on the final climb, the Col d'Aubisque, and soloed to the finish nineteen seconds ahead of the chasing group of overall favourites. Thomas was able to consolidate his position in the yellow jersey by picking up six bonus seconds in the sprint thereby extending his lead over Dumoulin to 2 minutes, 5 seconds. The penultimate stage was a time trial, Dumoulin won the stage, one second ahead of Froome. Dumoulin finished safely on Stage 21 to secure second place overall behind Thomas, his second successive second place in Grand Tours.