Rookie Alexander Rossi has won the 100th running of the Indianapolis 500. The Californian managed to conserve fuel while the leaders pitted in the closing laps Sunday, coasting across the finish line on fumes to give Andretti Herta Autosport a stunning victory in the centennial race. __ 3:40 p.m. Alexander Rossi says: “I have no idea how we pulled that off.” Neither do nearly 400,000 stunned fans on hand to watch the 100th Indianapolis 500. On a day dominated by big names — Helio Castroneves, James Hinchcliffe, Ryan Hunter-Reay — it was a rookie from California driving for Andretti Herta Autosport who ended up sipping the milk in victory lane. Rossi won by stretching his fuel just a bit longer than the leaders in the final laps, running out short of pit road as he completed his victory lap. Rossi said his team, including owners Michael Andretti and Bryan Herta, “rolled the dice and came through and made it happen.” He added, “I have no doubt it’s going to change my life.” ___ 3:30 p.m. Alexander Rossi has won the 100th running of the Indianapolis 500. The rookie managed to conserve fuel while the leaders pit in the closing laps Sunday, coasting across the finish line on fumes to give Andretti Herta Autosport a stunning victory in the centennial race. Carlos Munoz was forced to pit for fuel from the lead with four laps to go, allowing Rossi to assume the lead.