with the first 42 km as a time trial in the morning, and the last 89 km as a mass-start stage in the afternoon. There were two rest days, in Bayonne and Orcières. Race overview Merckx won the prologue, beating his rivals by some seconds. In the first stage, Cyrille Guimard won the sprint, and because of the bonification seconds took over the leader's jersey in the general classification. In the next stages, Merckx tried to win back time by winning bonification seconds in intermediate sprints and at the finish, but Guimard used the same tactic. Merckx won back the first position thanks to the bonification seconds after the team time trial in stage 3b, but lost it again in the fourth stage. Merckx won the time trial in the second part of the fifth stage, but Guimard came third, retaining the lead. After the sixth stage, Guimard was 11 seconds ahead of Merckx. The third place was occupied by a teammate of Merckx, and Ocaña was in fourth place, one minute behind Guimard. In the seventh stage, the Tour reached the Pyrenees. Ocaña attacked two times, and the second time only Merckx could follow. When Ocaña punctured, and later crashed with Thevenet, Merckx was away without him. Another group, including Zoetemelk and Guimard, had reached Merckx, and crossed the finish line together. Ocana finished in sixth place, losing 1 minute and 49 seconds. Thevenet lost more than six minutes that stage, and lost all hope of winning. He was taken to the hospital to see if the crash had caused serious injuries, but could start the next stage. In the eighth stage, Lucien Van Impe attacked on the last climb. Merckx caught him and won the stage, with Ocana only eight seconds behind him. Guimard lost three minutes, and Merckx overtook him in the general classification. In the ninth stage, Roger Pingeon left the race. He did not play an important role in the general classification, but his team expected him to help his teammate Thevenet in the rest of the race. The eleventh stage ended with the climb up to Mont Ventoux. After Merckx' team had pushed the pace such that most cyclists in the peloton had dropped, Ocana attacked four times. Every time, Merckx was able to chase him, together with only Poulidor. Poulidor then attacked, but could not get away. Some other cyclists were able to