I really didn't understand the first pit stop. Sitting on my live timing, I was hoping for them not to pit him. First of all to possibly pass Button and secondly, because there was enough space behind Button. Getting him in front of Button or 5 seconds behind Button with clean air (and a later 2 stop strategy) is both fine. I'll have to check the exact lap times later though.
I certainly expected better lap times in clean air, when Hamilton came in fairly early.
L09 1:28.243 (Hamilton in at the end of the lap)
L11 1.1 tenths slower (S1:+0.4 + S2:+0.7!!) than in the previous lap
I didn't notice he lost so much time in his in-lap.
Button's L11 S1:+0.2, S2:-0.2 to Vettel's
Assuming a 3-stopper was the primary strategy and they believed a 2-stopper would put them in a too risky situation at the end, it appears that there was no way to come out ahead of Button.
About the 2nd stop, the gap to Button was 22.5s (L33) prior to the in-lap which would have worked just fine. Then he lost 0.4 in S1 + 1.0 in S2 = 1.4s to JB in just two sectors!
The gap after L32 was 24.1s. So here it was a case of being one lap too late... One could say if a 3-stopper on three medium sets was the plan they could've reacted to Hamilton a bit earlier who came in lap 31. On the other hand, they probably didn't expect such a big drop off to be fair. Now things look more reasonable. :-p
I'll post his lap times before the 2nd pitstop later.
Edited by plumtree, 28 July 2013 - 16:06.