| Code | |
|---|---|
| Gender | Male |
| Full name | Mariano Tomás•Kowalczyk |
| Used name | Mariano•Kowalczyk |
| Born | 7 December 1971 |
| Sport | Competition | Host City | Country | Event | Placement | Country | |
|---|---|---|---|---|---|---|---|
| Rowing | 1995 Pan American Games | Mar del Plata | Coxless Pairs, Men | 🥈 | |||
| Rowing | 1995 Pan American Games | Mar del Plata | Coxed Pairs, Men | 🥉 |