Head to head
3
Hard
1
1
Clay
1
Stan Wawrinka's wins on the left · Juan Ignacio Chela's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (6)
| 2011 | Buenos Aires | Clay | SF | Juan Ignacio Chela | 6-2 6-2 |
| 2010 | US Open | Hard | R64 | Stan Wawrinka | 7-5 6-3 6-4 |
| 2007 | Paris Masters | Hard | R32 | Stan Wawrinka | 6-3 6-1 |
| 2007 | US Open | Hard | R16 | Juan Ignacio Chela | 4-6 6-2 7-6(6) 1-6 6-4 |
| 2007 | Stuttgart | Clay | SF | Stan Wawrinka | 6-7(2) 6-4 6-1 |
| 2006 | US Open | Hard | R128 | Stan Wawrinka | 6-7(3) 6-4 6-4 6-4 |
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.