Denis Istomin defeated Santiago Giraldo 6-3 6-7 6-3 7-6 in the Roland Garros round of 128 on clay. The upset overturned the form book — Santiago Giraldo came in defending last year's round of 128. Denis Istomin extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-07-29 | Washington | R64 | hard | Denis Istomin | 6-3 6-4 |
| 2012-04-23 | Barcelona | R64 | clay | Santiago Giraldo | 7-6(3) 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 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About