Ryusei Makiguchi defeated Tomas Buchhass 7-6 6-3 in the Argentina F9 round of 32 on clay. Ryusei Makiguchi extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-04-22 | Argentina F3 | R16 | clay | Ryusei Makiguchi | 1-6 6-4 7-5 |
| 2012-08-13 | Argentina F20 | R32 | clay | Tomas Buchhass | 6-4 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.