Ryusei Makiguchi defeated Steffen Zornosa 6-3 7-6 in the Bolivia F5 qualifying round on clay. The upset overturned the form book — Steffen Zornosa came in leading the head-to-head 1–0. Ryusei Makiguchi claimed a first win over Steffen Zornosa in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-09-26 | Bolivia F2 | R32 | clay | Steffen Zornosa | 4-6 6-4 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.