Nadal is now 20-10 in his career head-to-head with Federer and even though the Swiss player is considered the greatest player of all time, it is clear that both the physical and mental matchup with the lefty spin of the Spaniard is something that Federer is unable to handle at this stage of his career. It must be mentioned though that fully half of their thirty meetings have been on clay, with Nadal sporting a 13-2 lead on that surface. On the non-clay surfaces Federer still has a slight 8-7 lead. Two-thirds of their meetings have been in finals with Nadal leading 14-6 (but again, they have met in 13 clay court finals, with Nadal leading 11-2 there). Today's final was their first meeting in a final since the 2011 Roland Garros which was won easily by Nadal. Clearly, Federer has been the 2nd best clay-court player for the last decade, but Nadal is the best clay court player of all time.
(Yes, I'm still on my Caribbean vacation but of course I'm still following tennis! Sadly I was unable to see either match this year, although last year at this time I was in Rome.)