Guillermo Olaso defeated Pablo Carreno Busta 6-1 6-2 in the Spain F9 qualifying round on clay. The upset overturned the form book — Pablo Carreno Busta came in leading the head-to-head 1–0. Guillermo Olaso claimed a first win over Pablo Carreno Busta in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-04-07 | Casablanca | Q16 | clay | Pablo Carreno Busta | 6-1 6-1 |
Averages over each player's completed matches in the selected window (39 vs 198). ATP, WTA & Challenger.
Carreno Busta P.: 6 days rest · 1 match, 20 games (7d). Higher means fresher. About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Per-surface Serve / Return Rating (0–100, percentile within the clay field, opponent-adjusted over 52 weeks). About