Fabian Cancellara

A review of what happened during Friday's stage and a look ahead at what to expect for today's stage:The riders venture into the Alps on a 123-mile course from Bourg-en-Bresse to Le Grand-Bornand. The category-1 climb at La Colombiere pass promises to open up the race: * Friday's Stage 6: The mostly flat route took riders on a 124-mile trek from Semur-en-Auxois to Bourg-en-Bresse at the foot of the Alps.

Thomas Voeckler of France claimed a solo victory in Wednesday's fifth stage, a 122-mile ride from Le Cap d'Agde to Perpignan. Following a long breakaway, Voeckler made his move 3.1 miles from the finish to escape from a small group of riders. Fabian Cancellara of Switzerland retained the leader's yellow jersey. Seven-time Tour de France champion Lance Armstrong is second overall, with teammate Alberto Contador of Spain in third.

SAN LUIS OBISPO -- Dominique Rollin of Canada won the nearly seven-hour fourth stage and Levi Leipheimer of Santa Rosa retained his race lead Thursday in the Amgen Tour of California. Rollin, 25, the 2006 Canadian road race national titlist, emerged from a lead group of seven riders with about 12.5 miles left and pedaled to a solo win in 6 hours 56 minutes 8 seconds in the 135-mile road race from Seaside.

SOLVANG -- Levi Leip- heimer bounced through the windy turbulence of the Amgen Tour of California cycling time trial course Friday with a bit of a smile and absolute purpose. The 34-year-old from Santa Rosa, who rides for Kazakhstan's Astana team, won the 15-mile time trial in 30 minutes 46.803 seconds and widened his overall lead to 49 seconds over British national champion David Millar, who rides for Slipstream-Chipotle. Millar finished second in the time trial, 29 seconds behind Leipheimer.

It was a sprinter's day at the Amgen Tour of California. American Tyler Farrar took the leader's jersey Tuesday by earning mid-race sprint points during the rainy 115-mile ride from Santa Rosa to Sacramento, and Belgian sprint specialist Tom Boonen won the stage with an explosive move at the finish. Boonen, who rides for Quickstep, completed the stage in 5 hours 9 minutes 35 seconds. Farrar, a 23-year-old from Wenatchee, Wash.