Kristie Boogert defeated Joannette Kruger 6-1 6-0 in the US Open round of 128 on hard. The upset overturned the form book — Joannette Kruger came in leading the head-to-head 1–0, defending last year's round of 64. Kristie Boogert claimed a first win over Joannette Kruger in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-07-21 | Warsaw | R16 | clay | Joannette Kruger | 6-4 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.