Lewis Hamilton says his chances of winning the Austrian Grand Prix vanished at the start of the race.
The Briton was starting from pole position but lost the lead to Mercedes teammate Nico Rosberg, who made a better getaway from second and arrived first at Turn 1.
From there, Rosberg managed to control the race and his lead never looked under threat.
Hamilton said his starts have not been great since the Spanish Grand Prix.
"[Nico] was just quicker," he said. "Just in the second stint and in the first stint it was very close as well. He did a great job.
"I lost it at the start. I let the clutch out and it just underperformed, something I've been having since Barcelona.
"Before that I was having really good starts."
Hamilton was given a five-second time penalty for crossing the white line on the exit of the pitlane, but still managed to keep second place.
He admitted he had not realised he had done something wrong.
"I have no idea, to be honest. I don't think I went over anything."