Ashley Hewitt defeated Marcus Willis 6-3 6-4 in the Great Britain F15 qualifying round on hard. The upset overturned the form book — Marcus Willis came in leading the head-to-head 2–1. Ashley Hewitt narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-04-23 | Great Britain F6 | R32 | clay | Marcus Willis | 2-6 7-6(4) 6-3 |
| 2011-09-05 | Great Britain F14 | R32 | hard | Ashley Hewitt | 7-6(6) 6-4 |
| 2010-04-26 | Great Britain F5 | R32 | clay | Marcus Willis | 6-3 7-6(4) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.