Adam Thornton Brown defeated Tom Allen 3-6 6-4 6-1 in the Great Britain F18 q16 on hard. The upset overturned the form book — Tom Allen came in leading the head-to-head 1–0. Adam Thornton Brown claimed a first win over Tom Allen in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-07-15 | Great Britain F14 | Q16 | grass | Tom Allen | 6-4 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.