Carlos Berlocq defeated Denis Istomin 7-6 6-2 in the Paris Masters round of 64 on hard. The upset overturned the form book — Denis Istomin came in leading the head-to-head 1–0. Carlos Berlocq claimed a first win over Denis Istomin in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-10-07 | Shanghai Masters | R64 | hard | Denis Istomin | 4-6 6-2 6-1 |
Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.