Head to head
4
Hard
3
1
Grass
0
Juan Martin del Potro's wins on the left · Feliciano Lopez's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (9)
| 2019 | Queen's Club | Grass | R16 | Feliciano Lopez | W/O |
| 2018 | Wimbledon | Grass | R64 | Juan Martin del Potro | 6-4 6-1 6-2 |
| 2013 | Cincinnati Masters | Hard | R16 | Juan Martin del Potro | 6-4 1-6 6-4 |
| 2011 | Sydney | Hard | R32 | Juan Martin del Potro | 6-7(5) 7-6(9) 7-6(3) |
| 2010 | Tokyo | Hard | R32 | Feliciano Lopez | 6-3 6-0 |
| 2008 | Davis Cup WG F: ARG vs ESP | Hard | RR | Feliciano Lopez | 4-6 7-6(2) 7-6(4) 6-3 |
| 2008 | Miami Masters | Hard | R64 | Feliciano Lopez | 6-4 6-2 |
| 2007 | Paris Masters | Hard | R64 | Juan Martin del Potro | 6-4 6-3 |
| 2007 | Memphis | Hard | R32 | Juan Martin del Potro | 6-1 6-2 |
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.