Filippo Leonardi defeated Gianluca Mager 6-3 7-6 in the Italy F8 qualifying round on clay. The upset overturned the form book — Gianluca Mager came in leading the head-to-head 3–1, but Filippo Leonardi had been the form player, winning 2 of their last 5 on clay. Filippo Leonardi narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-07-10 | Italy F21 | QF | clay | Gianluca Mager | 6-1 6-4 |
| 2015-10-19 | Italy F32 | R16 | clay | Filippo Leonardi | 4-3 |
| 2015-09-14 | Italy F27 | QF | clay | Gianluca Mager | 6-4 6-1 |
| 2013-07-29 | Italy F19 | R32 | clay | Gianluca Mager | 6-3 2-6 6-2 |
Averages over each player's completed matches in the selected window (30 vs 200). 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