Fernando Alonso set the pace on the supersoft tyres in second practice in Montreal, edging Lewis Hamilton by 0.012s...
Unlike in the morning's session, there was a mad dash to get out on track with Kimi Raikkonen, Mark Webber, Nico Rosberg and Paul di Resta all holding the P1 slot in the first five minutes. However, as the session settled down - with many drivers opting for the development Pirelli tyres - it was di Resta who was quickest of all with his 1:16.382.
Felipe Massa was the next to lead the way as the Ferrari driver followed up a close encounter with the Wall with a 1:16.001. His reign, though, was short-lived as Lewis Hamilton overhauled him by 0.299s. The Brit went on to lower the benchmark to a 1:15.620.
Just before the halfway mark the drivers began to switch over to the supersoft tyres with Sebastian Vettel immediately jumping to the front. It was a 1:15.378 for the Red Bull racer who has yet to win a Canadian Grand Prix. Webber edged his team-mate by 0.058s sparking a brief battle where the duo traded fastest laps. Webber came out top with a 1:15.212, 0.068s up on his team-mate.
In sharp contract Raikkonen struggled to get the most out of his tyres to start with and it was only on his third that he improved his time, taking third behind the Red Bulls and ahead of Hamilton and Sergio Perez.
The Red Bull racers were soon edged by the Mercedes drivers as Hamilton and Rosberg ventured out for their supersoft tyre runs. Hamilton went quickest with a 1:15.006 while Rosberg climbed to third. Hamilton went on to improve on his second flying lap, a 1:14.830.
It was all change again as Fernando Alonso went quickest by 0.012s ahead of Hamilton. And that is how the timesheets looked when the drivers swapped to heavier fuel load and longer distances. Add in a few drops of the rain and the laps times were five to seven seconds slower.
Alonso was one of the most consistent, lapping in the 1:18s while Webber was matching the Spaniard.
Alonso, though, also had the pace over a short distance and finished in the P1 slot, 0.012s up on Hamilton. Grosjean was third.
01. Fernando Alonso Ferrari 1m14.818 48 laps
02. Lewis Hamilton Mercedes 1m14.830 +0.012 45 laps
03. Romain Grosjean Lotus 1m15.083 +0.265 40 laps
04. Mark Webber Red Bull 1m15.212 +0.394 46 laps
05. Nico Rosberg Mercedes 1m15.249 +0.431 46 laps
06. Felipe Massa Ferrari 1m15.254 +0.436 43 laps
07. Sebastian Vettel Red Bull 1m15.280 +0.462 41 laps
08. Adrian Sutil Force India 1m15.396 +0.578 43 laps
09. Jenson Button McLaren 1m15.422 +0.604 29 laps
10. Daniel Ricciardo Toro Rosso 1m15.566 +0.748 38 laps
11. Kimi Raikkonen Lotus 1m15.599 +0.781 35 laps
12. Sergio Perez McLaren 1m15.661 +0.843 39 laps
13. Paul di Resta Force India 1m15.855 +1.037 22 laps
14. Pastor Maldonado Williams 1m16.319 +1.501 46 laps
15. Jean-Eric Vergne Toro Rosso 1m16.351 +1.533 38 laps
16. Valtteri Bottas Williams 1m16.374 +1.556 40 laps
17. Esteban Gutierrez Saube 1m16.475 +1.657 45 laps
18. Nico Hulkenberg Sauber 1m16.929 +2.111 35 laps
19. Jules Bianchi Marussia 1m17.070 +2.252 41 laps
20. Charles Pic Caterham 1m17.236 +2.418 35 laps
21. Max Chilton Marussia 1m17.888 +3.070 45 laps
22. Giedo van der Garde Caterham 1m18.392 +3.574 39 laps