Ryusei Makiguchi defeated Sebastian Exequiel Pini 7-5 2-6 6-3 in the Argentina F14 qualifying round on clay. The upset overturned the form book — Sebastian Exequiel Pini came in leading the head-to-head 3–2. Ryusei Makiguchi narrowed the head-to-head to 3–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2014-12-01 | Chile F9 | R16 | clay | Ryusei Makiguchi | 4-6 6-4 6-3 |
| 2014-09-29 | Bolivia F3 | R32 | clay | Sebastian Exequiel Pini | 6-2 6-3 |
| 2013-11-11 | Chile F7 | R16 | clay | Sebastian Exequiel Pini | 6-7(4) 6-4 6-2 |
| 2013-10-07 | Bolivia F5 | R32 | clay | Ryusei Makiguchi | 6-4 3-6 6-1 |
| 2013-07-15 | Argentina F12 | R32 | clay | Sebastian Exequiel Pini | 6-0 6-1 |
Averages over each player's completed matches in the selected window (3 vs 4). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About