Janez Semrajc defeated Antonio Sancic 4-6 6-1 6-3 in the Croatia F13 round of 16 on clay. The upset overturned the form book — Antonio Sancic came in leading the head-to-head 2–1. Janez Semrajc narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-05-23 | Bosnia & Herzegovina F4 | R16 | clay | Antonio Sancic | 6-3 6-4 |
| 2009-09-28 | Bosnia & Herzegovina F6 | R16 | clay | Janez Semrajc | 6-4 6-2 |
| 2007-06-11 | Slovenia F3 | R32 | clay | Antonio Sancic | 6-4 6-2 |
Averages over each player's completed matches in the selected window (8 vs 40). 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