Marc Marquez was left to rue his decision to swap from the hard to the medium front tyre ahead of the delayed Qatar MotoGP, saying that cost him the victory.
Sunday's season-opener at the Losail International circuit was delayed because of concerns over the track conditions with rain coming down in the third sector.
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In the confusion over when the race would start, several drivers opted to change tyre compounds with Marquez swapping the hard tyre for a medium front.
He has blamed that for his P4 on the night.
"The temperature was dropping, the humidity was coming higher – I was with the hard front tyre and I had some doubt," said the Honda rider.
"Then the Michelin guys say 'you are the only one with the hard, be careful, you can crash' – and then okay, I go to the medium… mistake.
"I remember now after the race that last year in Silverstone I did the same mistake, I go with the soft to save – and it was too soft.
"I think with the hard I was able to fight for the victory until the end. But maybe also was able to crash. Because the hard in the end also is no warning, less warning – maybe if I put the hard, I'm more competitive but I crash."
However, the blame does not rest solely with his tyre choice with Marquez admitting Honda need to work on the bike.
"We must work on the bike," he said. "If you have an easy bike, then it's easier to choose the correct decision. If you have a bike that you're on the limit [with], then you must choose correct.
"If you don't choose the perfect decision, then you already lose too much time. This was the biggest mistake."