Tristan Samuel Weissborn defeated Jacob Grills 6-7 6-1 6-4 in the Austria F4 round of 32 on clay. The upset overturned the form book — Jacob Grills came in leading the head-to-head 1–0. Tristan Samuel Weissborn claimed a first win over Jacob Grills in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-06-15 | Slovenia F3 | R32 | clay | Jacob Grills | 4-6 6-3 6-1 |
Averages over each player's completed matches in the selected window (16 vs 131). 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