Cecil Mamiit defeated Go Soeda 6-1 6-3 in the USA F14 round of 16 on hard. The upset overturned the form book — Go Soeda came in leading the head-to-head 3–0. Cecil Mamiit claimed a first win over Go Soeda in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-03-04 | Davis Cup G1 R1: PHI vs JPN | RR | hard | Go Soeda | 7-6 6-2 3-6 6-3 |
| 2010-03-05 | Davis Cup G1 R1: JPN vs PHI | RR | carpet | Go Soeda | 6-7 6-3 6-3 6-3 |
| 2006-08-23 | US Open | Q128 | hard | Go Soeda | 6-1 6-2 |
Averages over each player's completed matches in the selected window (5 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