Mariano Puerta defeated Christian Ruud 6-3 6-3 in the Hamburg Masters round of 64 on clay. The upset overturned the form book — Christian Ruud came in leading the head-to-head 2–0. Mariano Puerta claimed a first win over Christian Ruud in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-05-17 | St. Poelten | R32 | clay | Christian Ruud | 3-6 6-1 7-6(2) |
| 1999-02-08 | San Jose | R32 | hard | Christian Ruud | 6-2 4-6 6-3 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (199 vs 67). ATP, WTA & Challenger.