Head to head
13
Hard
7
3
Clay
0
2
Grass
0
Roger Federer's wins on the left · Juan Martin del Potro's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (25)
| 2018 | Indian Wells Masters | Hard | F | Juan Martin del Potro | 6-4 6-7(8) 7-6(2) |
| 2017 | Basel | Hard | F | Roger Federer | 6-7(5) 6-4 6-3 |
| 2017 | Shanghai Masters | Hard | SF | Roger Federer | 3-6 6-3 6-3 |
| 2017 | US Open | Hard | QF | Juan Martin del Potro | 7-5 3-6 7-6(8) 6-4 |
| 2017 | Miami Masters | Hard | R32 | Roger Federer | 6-3 6-4 |
| 2013 | Tour Finals | Hard | RR | Roger Federer | 4-6 7-6(2) 7-5 |
| 2013 | Paris Masters | Hard | QF | Roger Federer | 6-3 4-6 6-3 |
| 2013 | Basel | Hard | F | Juan Martin del Potro | 7-6(3) 2-6 6-4 |
| 2012 | Tour Finals | Hard | RR | Juan Martin del Potro | 7-6(3) 4-6 6-3 |
| 2012 | Basel | Hard | F | Juan Martin del Potro | 6-4 6-7(5) 7-6(3) |
| 2012 | London Olympics | Grass | SF | Roger Federer | 3-6 7-6(5) 19-17 |
| 2012 | Roland Garros | Clay | QF | Roger Federer | 3-6 6-7(4) 6-2 6-0 6-3 |
| 2012 | Indian Wells Masters | Hard | QF | Roger Federer | 6-3 6-2 |
| 2012 | Dubai | Hard | SF | Roger Federer | 7-6(5) 7-6(6) |
| 2012 | Rotterdam | Hard | F | Roger Federer | 6-1 6-4 |
| 2012 | Australian Open | Hard | QF | Roger Federer | 6-4 6-3 6-2 |
| 2011 | Cincinnati Masters | Hard | R32 | Roger Federer | 6-3 7-5 |
| 2009 | Tour Finals | Hard | RR | Juan Martin del Potro | 6-2 6-7(5) 6-3 |
| 2009 | US Open | Hard | F | Juan Martin del Potro | 3-6 7-6(5) 4-6 7-6(4) 6-2 |
| 2009 | Roland Garros | Clay | SF | Roger Federer | 3-6 7-6(2) 2-6 6-1 6-4 |
| 2009 | Madrid Masters | Clay | SF | Roger Federer | 6-3 6-4 |
| 2009 | Australian Open | Hard | QF | Roger Federer | 6-3 6-0 6-0 |
| 2008 | Madrid Masters | Hard | QF | Roger Federer | 6-3 6-3 |
| 2007 | Basel | Hard | R16 | Roger Federer | 6-1 6-4 |
| 2007 | Wimbledon | Grass | R64 | Roger Federer | 6-2 7-5 6-1 |
Methodology
Head-to-head totals and surface splits exclude walkovers (no match was played), which follows ATP convention — walkover meetings still appear in the match list. The momentum chart plots the running lead across all counted meetings, oldest to newest.