Most of the riders began to quicken the pace after they realized that
Tom Boonen, previous year winner and main favourite, had no teammates in the leading group. A persecution began between the leading group and a
peloton led by five riders, including
Filippo Pozzato and
Servais Knaven, trying to assist
Tom Boonen. With 80 kilometers to go and after almost 20 kilometers of struggling, gave up. In the leading group
Joost Posthuma,
Enrico Franzoi,
Nicolas Portal and
Stephan Schreck lost contact with the leading group although Portal would eventually rejoin the lead. With 45 kilometres to go, while going through
Mons-en-Pévèle cobblestone section,
George Hincapie's steerer tube broke and he injured his collarbone, forcing him to retire from the race. Soon after
Tom Boonen and
Juan Antonio Flecha made a series of accelerations that selected the lead group to only eight riders: Alessandro Ballan, Tom Boonen, Fabian Cancellara, Bernhard Eisel, Juan Antonio Flecha, Vladimir Gusev, Leif Hoste and Peter Van Petegem.
Vladimir Gusev fell a short time later in a fall that also brought down the Italian
Alessandro Ballan with 25 kilometres to go, although they could make it back to the lead. With 20 kilometres to go and riding through
Camphin-en Pévèle cobblestones sector,
Fabian Cancellara attacked and gained a few metres along with
Vladimir Gusev over the rest of the leaders. The difference soon increased to 20 seconds when, hitting ''Carrefour de l'Arbre'', Cancellara began a solo effort to Roubaix after Gusev couldn't hold on the pace by the Swiss time-trial specialist. In this same sector
Leif Hoste attacked while Gusev was losing contact with Cancellara.
Peter Van Petegem followed him, while
Tom Boonen,
Juan Antonio Flecha and
Alessandro Ballan were close behind them. Hoste and Van Petegem would eventually catch Gusev trying to catch Cancellara, who wouldn't stop increasing his advantage, eventually winning over a minute in
Roubaix Velodrome.
Disqualifications Hoste, Van Petegem and Vladimir Gusev were initially credited with 2nd through 4th places (1'23" down), but were later disqualified by the race jury for illegally riding through a closed level-crossing. (This railway crossing should not have been closed and the organizers received criticism because of it.) This promoted world champion and pre-race favourite Boonen into 2nd place. ==Results==