Gilles Simon defeated Juan Martin del Potro 7-6 6-7 7-5 in the New Haven round of 32 on hard. The upset overturned the form book — Juan Martin del Potro came in leading the head-to-head 5–2. Gilles Simon narrowed the head-to-head to 5–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-07-02 | Wimbledon | R16 | grass | Juan Martin del Potro | 7-6 7-6 5-7 7-6 |
| 2016-06-06 | Stuttgart | QF | grass | Juan Martin del Potro | 6-7 6-3 6-0 |
| 2013-02-18 | Marseille | QF | hard | Gilles Simon | 6-4 6-3 |
| 2012-07-25 | London Olympics | R16 | grass | Juan Martin del Potro | 6-1 4-6 6-3 |
| 2011-08-29 | US Open | R32 | hard | Gilles Simon | 4-6 7-6 6-2 7-6 |
| 2011-06-20 | Wimbledon | R32 | grass | Juan Martin del Potro | 7-6 7-6 7-5 |
| 2008-08-25 | US Open | R32 | hard | Juan Martin del Potro | 6-4 6-7 6-1 3-6 6-3 |
Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About