Maria Irigoyen defeated Romana Caroline Tabak 7-5 6-2 in the Maribor 25K round of 16 on clay. The upset overturned the form book — Romana Caroline Tabak came in leading the head-to-head 1–0, but Maria Irigoyen had been the form player, winning 1 of their last 4 on clay. Maria Irigoyen claimed a first win over Romana Caroline Tabak in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-10-31 | Asuncion 10K | F | clay | Romana Caroline Tabak | 5-7 7-6(7) 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.