Mariano Puerta defeated Lucas Arnold Ker 6-1 6-2 in the Mexico City round of 16 on clay. The result followed the form book — Mariano Puerta came in leading the head-to-head 2–0. Mariano Puerta extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-11-09 | Santiago | R16 | clay | Mariano Puerta | 6-3 7-5 |
| 1998-08-10 | San Marino | R32 | clay | Mariano Puerta | 6-4 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 32). ATP, WTA & Challenger.