Roger Federer defeated Juan Martin del Potro 6-3 7-5 in the Cincinnati Masters round of 32 on hard. The result followed the form book — Roger Federer came in leading the head-to-head 13–7, defending the title. Roger Federer extended the head-to-head to 14–7.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-03-05 | Indian Wells Masters | F | hard | Juan Martin del Potro | 6-4 6-7 7-6 |
| 2017-10-23 | Basel | F | hard | Roger Federer | 6-7 6-4 6-3 |
| 2017-10-09 | Shanghai Masters | SF | hard | Roger Federer | 3-6 6-3 6-3 |
| 2017-08-28 | US Open | QF | hard | Juan Martin del Potro | 7-5 3-6 7-6 6-4 |
| 2017-03-20 | Miami Masters | R32 | hard | Roger Federer | 6-3 6-4 |
| 2013-11-04 | Tour Finals | RR | hard | Roger Federer | 4-6 7-6 7-5 |
| 2013-10-28 | Paris Masters | QF | hard | Roger Federer | 6-3 4-6 6-3 |
| 2013-10-21 | Basel | F | hard | Juan Martin del Potro | 7-6 2-6 6-4 |
| 2012-11-05 | Tour Finals | RR | hard | Juan Martin del Potro | 7-6 4-6 6-3 |
| 2012-10-22 | Basel | F | hard | Juan Martin del Potro | 6-4 6-7 7-6 |
| 2012-07-25 | London Olympics | SF | grass | Roger Federer | 3-6 7-6 19-17 |
| 2012-05-27 | Roland Garros | QF | clay | Roger Federer | 3-6 6-7 6-2 6-0 6-3 |
| 2012-03-08 | Indian Wells Masters | QF | hard | Roger Federer | 6-3 6-2 |
| 2012-02-27 | Dubai | SF | hard | Roger Federer | 7-6 7-6 |
| 2012-02-13 | Rotterdam | F | hard | Roger Federer | 6-1 6-4 |
| 2012-01-16 | Australian Open | QF | hard | Roger Federer | 6-4 6-3 6-2 |
| 2009-11-22 | Tour Finals | RR | hard | Juan Martin del Potro | 6-2 6-7 6-3 |
| 2009-08-31 | US Open | F | hard | Juan Martin del Potro | 3-6 7-6 4-6 7-6 6-2 |
| 2009-05-25 | Roland Garros | SF | clay | Roger Federer | 3-6 7-6 2-6 6-1 6-4 |
| 2009-05-10 | Madrid Masters | SF | clay | Roger Federer | 6-3 6-4 |
Averages over each player's completed matches in the selected window (199 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About