Guillermo Garcia Lopez defeated Stan Wawrinka 6-4 5-7 6-4 in the Madrid Masters round of 64 on clay. The upset overturned the form book — Stan Wawrinka came in leading the head-to-head 7–3, defending last year's round of 16. Guillermo Garcia Lopez narrowed the head-to-head to 7–4.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-05-28 | Roland Garros | R128 | clay | Guillermo Garcia Lopez | 6-2 3-6 4-6 7-6(5) 6-3 |
| 2016-01-04 | Chennai | QF | hard | Stan Wawrinka | 6-4 6-4 |
| 2015-02-09 | Rotterdam | R16 | hard | Stan Wawrinka | 6-7(2) 6-4 6-2 |
| 2015-01-19 | Australian Open | R16 | hard | Stan Wawrinka | 7-6(2) 6-4 4-6 7-6(8) |
| 2014-05-26 | Roland Garros | R128 | clay | Guillermo Garcia Lopez | 6-4 5-7 6-2 6-0 |
| 2013-06-16 | s Hertogenbosch | SF | grass | Stan Wawrinka | 6-1 6-4 |
| 2013-04-08 | Casablanca | QF | clay | Stan Wawrinka | 6-1 6-2 |
| 2010-01-18 | Australian Open | R128 | hard | Stan Wawrinka | 6-3 6-3 6-2 |
| 2009-07-19 | Hamburg | R32 | clay | Guillermo Garcia Lopez | 6-2 6-4 |
| 2005-04-18 | Barcelona | R64 | clay | Stan Wawrinka | 6-3 6-1 |
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 198). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Wawrinka S.: 14 days rest · 1 match (14d). Higher means fresher. About