Lewis Hamilton believes his poor qualifying performance in Monaco was as a result of adopting the wrong strategy.
The McLaren driver had looked the fastest man for much of the weekend and topped the timesheets after Q1 and Q2.
However, the Briton was forced to settle for a final grid position of seventh after Sergio Perez's crash interrupted his first flying lap in Q3, with his second run scuppered by a lack of temperature in his tyres. Hamilton was then later demoted to tenth for jumping a chicane.
"It wasn't the waiting in the pitlane, it was the strategy [we took]," Hamilton said of the reasons behind his poor performance.
"I think we've been going well all weekend and I had the pace for pole; I'm certain about that.
"Engineers advise that we should do one [run] at the end of Q3 and I didn't contest it. You always have to take a balanced view with the engineers.
"I definitely didn't take into account - and I know they didn't either - that in Monaco you can't take risks in leaving it [your lap] right to the end.
"You have to get out and get in a banker, like everyone else did. With racing experience you'd assume that most people would have that, but I guess other things were going on and we didn't have that. It's my worst Q3 for a long time."
The 2008 World Champion was downbeat regarding his chances of charging up the grid during Saturday's race.
"You can't overtake here, so I'll just get whatever I can," he said.
"I won't give up, but there's no chance to win realistically. Sebastian [Vettel] will walk away with it, but that's racing."
