Valentino Rossi lamented his "stupid mistake" which cost him a shot of victory at a chaotic rain-affected Dutch TT on Sunday.
Movistar Yamaha rider Rossi was leading the second part of the race in Assen - which had been red flagged due to the torrential rain - before crashing with 11 laps to go.
Australian Jack Miller - who started 18th on the grid - dealt with the conditions best to seal his maiden MotoGP win, holding off Honda's Marc Marquez.
Rossi was left to lament his costly error, which leaves him 42 points behind championship leader Marquez after eight rounds.
"In the first part of the race I felt good, and in the second part I put the soft tyre on the rear and I felt even better," the Italian said.
"I tried to push, I had a good start, and I had a lot more grip. But I did a mistake, I pushed too hard, it was too much. It was a stupid mistake.
"I'm very sorry for all the team, because today we could have won, we had an advantage compared to the others.
"With the soft [rear tyre] in the second part, I was a lot faster at turn nine because I could open the throttle earlier.
"I arrived at turn 10, braked at the same point, but I was four or five kilometres per hour faster and I lost the front."
Despite his substantial point gap to Marquez, Rossi is not giving up hope of catching the Spaniard.
"I'm very sorry that we couldn't make up points, especially on [Jorge] Lorenzo, who was in difficulty this weekend, and also against Marquez," he added.
"This DNF is a problem for championship, especially because of the zero for the engine in Mugello. Now the advantage of Marquez is quite big.
"But it's not finished until it's finished, and the championship is very long. Now we have to try and be competitive every weekend, and we'll see."