Lewis Hamilton finished 7th at the Monaco Grand Prix 2017
Hamilton had struggled on Saturday to warm up his tyres properly and was eliminated from qualifying before the final session, logging the 14th-fastest time.
The Brit had not missed out on Q3 since 2013 but was promoted one place before the race even started thanks to Jenson Button's 15th place penalty.
Hamilton subsequently overtook Stoffel Vandoorne off the line and gained several places more thanks to a number of fast laps before his pit-stop, which came much later than most.
But even so, the three-time F1 World Drivers' Champion was frustrated with the way the weekend had panned out, even if the result itself was an improvement on his initial expectations.
Pascal Wehrlein crashes during Monaco Grand Prix Sun, May 28, 2017
Pascal Wehrlein crashed out during the Monaco Grand Prix after a collision with Jenson Button
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Pascal Wehrlein crashes out after a collision with Jenson Button
"I have the smartest strategist and they said the best result looked like 10th but I went in with a positive mentality and pushed as hard as I could," Hamilton said.
"I'm really really happy with the result but I can't really say that I particularly enjoyed the race.
"It was kind of boring for the first part and particularly at the end when you couldn't overtake.
"But the part were I was in clear air I enjoyed.
Lewis Hamilton closed up to Carlos Sainz but could not overtake him
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"I came in this morning feeling terrible and I didn't sleep a lot last night. "But to come away with the points I have, I can honestly move away from this and move forward."
His team-mate Valtteri Bottas was overtaken in the pit-stop phase by Daniel Ricciardo, who produced the drive of the day to finish third.
But the Finn was able to hold off Max Verstappen and maintain fourth position to ensure the weekend was not a total disaster for Mercedes.
However, Ferrari sealed a one-two finish with championship leader Sebastian Vettel stretching his lead to 25 points and opening up a 42-point gap at the top of the Constructors' Championship.
"Our car was not quick enough this weekend," Mercedes team boss Toto Wolff said.
"This was what we calculated as the optimal result for us without any incidents.
"We were caught on the back foot [during FP2] on Thursday afternoon and we somehow never recovered.
"The tyres were in the window then out of it then in the window again.
"Even in the race we had the same patterns when Lewis in certain times was really fast.
"We have a lot more thinking to do. Monaco last year was a difficult track for us again.
"We have time until Montreal – another difficult track – but we need to get on top of things."