Solved

Drivers are manually pitting one lap earlier of a scheduled pitstop

I think your miss reading it Vincent.

You are referring to https://igpmanager.com/app/d=resultDetail&id=2811343 You finished 6th?

You had two slow laps, one on lap 7 (your in lap and stop) and one on lap 8 (your out lap).

There is nothing to suggest you stopped more than once each time and you completed 2 pit stops total as per the race result screen.

Thanks Jamie :)

Problem is you probably can't see my tyre and fuel level:
lap 6: 45% 4.7L (1:58.582)
lap 7: 99% 54L (2:11.917 IN LAP)
PIT 5.8sec...
lap 8: 94% 49.6L (2:04.235 OUT LAP)

So if there is no pitstop between lap 6 and 7, how come my fuel and tyre has become new again? That's what bugging me and leading me to believe there is a pitstop :)

Your car pitted towards the end of lap 7.
<strong>Your pit box was before the finish line.</strong>
When your car exited the pit box and crossed the finish line, the game logged 99% tyre life and 54 litres of fuel in the tank for the end of lap 7.

Yes, I agree with Blunion. his logic is correct to why you are seeing the tyre and fuel at the end of lap 7.

Hi.
If blunion is right, and he pitted befire de finish line, why was the next lap so slow. He started the lap after the pit stop, so the pit stop should not affect that time so much.
Thanks.

It depends on the track what the outlap's time is. The outlap will never be as fast as the typical lap times being set in a race.