Chris Wilkinson defeated Brian Joelson 6-1 7-6 in the Great Britain 1 Masters 4 semi-final on carpet. The upset overturned the form book — Brian Joelson came in leading the head-to-head 1–0. Chris Wilkinson claimed a first win over Brian Joelson in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-02-18 | Great Britain 1 Masters 4 | R16 | carpet | Brian Joelson | 7-6 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.