Chiaki Okadaue defeated Shannon Golds 2-6 6-3 7-6 in the Sorrento 25K qualifying round on hard. The upset overturned the form book — Shannon Golds came in leading the head-to-head 2–1. Chiaki Okadaue narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-02-28 | Sydney 25K | R16 | hard | Shannon Golds | 6-1 6-4 |
| 2009-11-16 | Esperance 25K | QF | hard | Chiaki Okadaue | 7-6(9) 2-6 6-4 |
| 2009-10-05 | Mount Gambier 25K | QF | hard | Shannon Golds | 6-3 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.