Mirza Basic defeated Yannick Mertens 3-6 6-3 7-5 in the Istanbul CH round of 32 on hard. The upset overturned the form book — Yannick Mertens came in defending last year's round of 16, but Mirza Basic had been the form player, winning 2 of their last 5 on hard. Mirza Basic extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-04-15 | France F8 | QF | clay | Mirza Basic | 7-5 6-4 |
| 2011-04-18 | Italy F6 | QF | clay | Yannick Mertens | 6-4 6-1 |
Averages over each player's completed matches in the selected window (200 vs 183). 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