Kimberly Po Messerli defeated Kerry Anne Guse 6-4 6-1 in the US Open round of 128 on hard. The upset overturned the form book — Kerry Anne Guse came in leading the head-to-head 1–0, defending last year's round of 128. Kimberly Po Messerli claimed a first win over Kerry Anne Guse in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-06-23 | Wimbledon | R128 | grass | Kerry Anne Guse | 3-6 7-5 6-2 |