Head to head
0
Hard
4
1
Clay
0
Jarkko Nieminen's wins on the left · Juan Martin del Potro's on the right · bar lengths share one scale
All meetings (5)
| 2013 | Monte Carlo Masters | Clay | R16 | Jarkko Nieminen | 6-4 4-6 7-6(4) |
| 2013 | Rotterdam | Hard | QF | Juan Martin del Potro | 6-3 6-4 |
| 2011 | Canada Masters | Hard | R64 | Juan Martin del Potro | 6-4 6-0 |
| 2008 | Madrid Masters | Hard | R32 | Juan Martin del Potro | 6-2 4-2 RET |
| 2008 | Tokyo | Hard | R16 | Juan Martin del Potro | 6-1 6-3 |
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.