Jan Hernych defeated Jan Mertl 3-6 7-6 6-3 in the Czech Republic F4 semi-final on carpet. The result followed the form book — Jan Hernych came in leading the head-to-head 2–1. Jan Hernych extended the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2014-06-23 | Wimbledon | Q1 | grass | Jan Hernych | 4-2 |
| 2014-06-16 | Wimbledon | Q128 | grass | Jan Hernych | 4-2 |
| 2013-05-27 | Czech Republic F3 | F | clay | Jan Mertl | 6-4 7-5 |
Averages over each player's completed matches in the selected window (74 vs 127). 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