Tasmanian Richie Porte won the fifth stage of the Tour Down Under following a brilliant solo attack up the second ascent of Willunga Hill in South Australia on Saturday.

Porte (Team Sky) waited until halfway up the final climb to the finish line on top of the mountain before powering past race leader Cadel Evans and racing away to win by 10 seconds.

Evans, who took a seven se­cond overall lead into the stage, faded over the final 200 meters as general classification rivals Diego Ulissi (Lampre-Merida) and Simon Gerrans swept past to claim the minor places in the 151.5-kilometer stage from McLaren Vale to Willunga Hill.

Gerrans' third place ensured the Orica GreenEdge rider regained the ochre leader's jersey from Evans by just one second.

Ulissi is a further four se­conds back in third with Porte jumping six places to fourth, 10 seconds behind Gerrans.