Andoni Vivanco Guzman defeated Georgi Rumenov Payakov 6-2 6-3 in the Spain F30 round of 16 on clay. The upset overturned the form book — Georgi Rumenov Payakov came in leading the head-to-head 2–0. Andoni Vivanco Guzman claimed a first win over Georgi Rumenov Payakov in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-04-12 | Spain F12 | R32 | clay | Georgi Rumenov Payakov | 7-5 6-3 |
| 2009-05-25 | Spain F18 | R32 | clay | Georgi Rumenov Payakov | 4-6 7-6(4) 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.