Isabella Holland defeated Chiaki Okadaue 6-2 6-3 in the Darwin 25K round of 16 on hard. The upset overturned the form book — Chiaki Okadaue came in leading the head-to-head 3–1. Isabella Holland narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2014-05-12 | Kurume 50K | QF | grass | Chiaki Okadaue | 6-3 6-0 |
| 2010-09-13 | Darwin 25K | R16 | hard | Chiaki Okadaue | 6-4 6-4 |
| 2009-09-21 | Darwin 25K | QF | hard | Chiaki Okadaue | 6-2 6-0 |
| 2009-03-02 | Sydney 25K | R16 | hard | Isabella Holland | 4-6 6-3 6-1 |
Averages over each player's completed matches in the selected window (3 vs 2). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About