Guillermo Olaso defeated Rui Machado 6-3 3-6 6-1 in the Spain F25 round of 32 on clay. The upset overturned the form book — Rui Machado came in leading the head-to-head 3–2, but Guillermo Olaso had been the form player, winning 2 of their last 4 on clay. Guillermo Olaso narrowed the head-to-head to 3–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-06-17 | Romania F4 | F | clay | Rui Machado | 6-2 6-0 |
| 2013-03-04 | Portugal F3 | F | hard | Rui Machado | 7-6(3) 6-2 |
| 2007-11-19 | Spain F42 | QF | clay | Rui Machado | 6-1 6-2 |
| 2007-10-29 | Spain F39 | R32 | clay | Guillermo Olaso | 6-7(4) 7-6(5) 6-4 |
| 2007-07-16 | Spain F27 | SF | clay | Guillermo Olaso | 6-4 7-5 |
Averages over each player's completed matches in the selected window (36 vs 90). 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