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Rafael Nadal and Roger Federer have spent almost four full days together on court during their 37 matches.

Nadal & Federer: 89 Hours And Counting...

Just how much time have the two all-time greats spent together on court?

The very best parts of Roger Federer and Rafael Nadal's FedEx ATP Head2Head rivalry will remain unquantifiable forever. How their games have evolved throughout their careers. The passion they share for tennis. The feelings of excitement they've provided millions of fans during the past two decades.

But certain aspects of their rivalry, one of the best in all of sport, can be counted. And when you've played each other 37 times over 14 years and your match-ups have decided 23 tour-level titles, the numbers add up quickly.

To begin: They've spent a lot of time together. Nadal and Federer have been on court together for the equivalent of almost four full days – three days, 17 hours and 16 minutes, to be precise. If you're thinking about that in terms of a workweek, that's one busy week – 89 hours.

They've played more than 7,000 points, more than 1,100 games and more than 100 sets. They've had their share of faults – 126 double faults to be more accurate – but they've also aced each other dozens of times, and that's not hyperbole.

To relive all 37 matches they've played, click here. For more stats, keep reading.

By The Numbers: Federer v. Nadal

Category Stat
Total Points Played    7,161
Time On Court (Minutes)  5,356
Total Games Played  1,138
Total Sets Played  115

Category Federer Nadal
Break Points Faced 319 297
Break Points Converted  110 133
First-Serve Points Won  1,575 1,747 
First-Serve Return Points Won 871 671
First-Serve Points Played 2,246 2,618
Second-Serve Points Won 658 532
Second-Serve Return Points Won 431 676
Second-Serve Points Played 963 1,334
Total Service Points Won  2,233 2,279
Aces 302 79
Double Faults 65 61