Ricardo Mello defeated Juan Ignacio Chela 6-2 7-6 2-6 2-6 6-2 in the US Open round of 128 on hard. The upset overturned the form book — Juan Ignacio Chela came in leading the head-to-head 2–1, defending last year's round of 32, but Ricardo Mello had been the form player, winning 3 of their last 4 on hard. Ricardo Mello narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-01-10 | Auckland | R16 | hard | Juan Ignacio Chela | 6-2 6-1 |
| 2003-09-08 | Costa Do Sauipe | R16 | hard | Ricardo Mello | 2-6 6-2 6-4 |
| 1998-07-27 | Brazil F2 | R16 | hard | Juan Ignacio Chela | 6-3 6-3 |
Averages over each player's completed matches in the selected window (119 vs 200). 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