Shuichi Sekiguchi defeated Jacob Grills 3-6 6-1 6-1 in the Shanghai CH round of 64 on hard. The upset overturned the form book — Jacob Grills came in leading the head-to-head 1–0, but Shuichi Sekiguchi had been the form player, winning 8 of their last 10 on hard. Shuichi Sekiguchi claimed a first win over Jacob Grills in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-03-26 | Japan F4 | R32 | hard | Jacob Grills | 7-6(4) 4-6 6-3 |
Averages over each player's completed matches in the selected window (156 vs 72). 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