Daniel Ricciardo Hard (16) Medium (17) Medium (11)
Jean-Eric Vergne Medium (10) Medium (14) Hard (20)
So, slow leak it wasnt bad enough to pit him despite the claim that it was from the start the last session. He did 20 laps on them. So Dans strategy if he had lived with him for the first two stints was always going to help with using the faster tyre at the end on low tank
Also, if you look at the pace of Jev's 3rd stint its basically the same as hist first stint (like many others) vs Dan who obviously had a load more pace on the newer tyres.
http://www.f1fanatic.co.uk/2013/08/25/2013-belgian-grand-prix-lap-charts/
Has not always been the case between them but Dan definitely had the better race pace