Bailly missed one of 10 targets and finished in 24 minutes, 57.6 seconds. Kati Wilhelm of Germany also had one penalty lap and was 1.4 seconds behind for second place.
Russia's Svetlana Ishmouratova was the only competitor in the top 10 to hit all ten targets but was 23.6 seconds adrift in third place.
Wilhelm retained her overall World Cup lead with 387 points, 49 more than Swede Anna Carin Olofsson, who finished eighth on Friday. Ishmouratova is third overall with 328 points.
Ski Flying
Defending champion Roar Ljoekelsoey of Norway held the lead after day one of the Ski Flying World Championships on the Kulm jump Friday.
Thomas Morgenstern was second and fellow Austrian Martin Koch third.
Coming from third after the opening leg, Ljoekelsoey had a faultless second leap with the day's best of 207.5m to take victory.
"It was simply perfect, although the conditions were very windy," Ljoekelsoey said.
The Norwegian scored 401 points for his two jumps, compared to Morgenstern's 378.2 and Koch's 377.4 points.
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