Glenn Maxwell hit the second-fastest World Cup century as Australia beat Sri Lanka by 64 runs to reach the quarter-finals on Sunday.
Chasing 377 to win, Sri Lanka finished on 312-9 with Dinesh Chandimal not returning to the field having retired hurt on 52.
Kumar Sangakkara hit a third successive century — and passed 14,000 ODI runs — but was out for 104 while Tillakaratne Dilshan added 62.
Maxwell hit his hundred off 51 balls, and his innings of 102 was also his maiden one-day international hundred.
Maxwell and recalled all-rounder Shane Watson (67) put on 160 for the fifth wicket while Steve Smith (72) and skipper Michael Clarke (68) also hit half-centuries.