Jacob Grills defeated Adam Feeney 7-5 6-3 in the Thailand F2 round of 16 on hard. The upset overturned the form book — Adam Feeney came in leading the head-to-head 2–0. Jacob Grills claimed a first win over Adam Feeney in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-06-03 | Thailand F3 | R16 | hard | Adam Feeney | 6-4 7-5 |
| 2012-09-17 | Australia F8 | QF | hard | Adam Feeney | 6-3 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.