Philipp Kohlschreiber defeated Juan Martin del Potro 6-3 6-4 in the Stuttgart semi-final on grass. The upset overturned the form book — Juan Martin del Potro came in leading the head-to-head 7–1. Philipp Kohlschreiber narrowed the head-to-head to 7–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-03-05 | Indian Wells Masters | QF | hard | Juan Martin del Potro | 3-6 6-3 6-4 |
| 2016-04-25 | Munich | QF | clay | Philipp Kohlschreiber | 6-4 6-1 |
| 2013-10-07 | Shanghai Masters | R32 | hard | Juan Martin del Potro | 3-6 6-3 7-6(4) |
| 2012-01-16 | Australian Open | R16 | hard | Juan Martin del Potro | 6-4 6-2 6-1 |
| 2011-03-23 | Miami Masters | R64 | hard | Juan Martin del Potro | 6-7(3) 6-4 7-5 |
| 2011-03-10 | Indian Wells Masters | R16 | hard | Juan Martin del Potro | 7-6(3) 7-6(7) |
| 2008-07-07 | Stuttgart | QF | grass | Juan Martin del Potro | 7-6(3) 6-3 |
| 2007-08-13 | Cincinnati Masters | R32 | hard | Juan Martin del Potro | 6-1 2-6 6-4 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (200 vs 170). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About