It was held on 26 August 2012, over a distance of 243 km (151.0 mi), starting and finishing in Plouay, France.

It was the twenty-fourth race of the 2012 UCI World Tour season.

The race was won by Team Sky's Edvald Boasson Hagen,[1] after breaking away from the peloton to catch solo leader Rui Costa of the Movistar Team, and accelerated away from him to beat the field by five seconds in Plouay.

[3] As the GP Ouest-France was a UCI World Tour event, all 18 UCI ProTeams were invited automatically and obligated to send a squad.

Five other squads were given wildcard places into the race, and as such, formed the event's 23-team peloton.