Mariano Hood defeated Lucas Arnold Ker 6-1 6-1 in the Argentina 1 Masters 2 qualifying round on clay. The upset overturned the form book — Lucas Arnold Ker came in leading the head-to-head 4–1. Mariano Hood narrowed the head-to-head to 4–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-11-09 | Santiago | R32 | clay | Lucas Arnold Ker | 6-2 3-6 6-3 |
| 1996-03-23 | Chile 1 Masters 4 | R32 | clay | Lucas Arnold Ker | 6-3 6-4 |
| 1995-09-02 | Argentina 2 Masters 4 | QF | clay | Lucas Arnold Ker | 6-4 6-4 |
| 1995-04-01 | Argentina 1 Masters 4 | R32 | clay | Lucas Arnold Ker | 6-3 7-6 |
| 1994-07-16 | Argentina 2 Masters 2 | QF | clay | Mariano Hood | 1-6 6-3 7-5 |
Averages over each player's completed matches in the selected window (11 vs 42). 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