Katie Obrien defeated Angelique Kerber 2-6 6-4 6-1 in the Madrid 25K semi-final on hard. The result followed the form book — Katie Obrien came in leading the head-to-head 2–0. Katie Obrien extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-09-21 | Shrewsbury 75K | QF | hard | Katie Obrien | 3-6 6-3 7-6(5) |
| 2004-09-20 | Jersey 25K | R32 | hard | Katie Obrien | 6-4 6-0 |
Averages over each player's completed matches in the selected window (31 vs 198). 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