| Year | Tournament | Result | Player | Age | Nation |
|---|---|---|---|---|---|
| 1998 | Wimbledon | R128 | Ramón Delgado | 21 | Paraguay |
| 1998 | French Open | R16 | Ramón Delgado | 21 | Paraguay |
| 1997 | French Open | R64 | Ramón Delgado | 20 | Paraguay |
| 1996 | US Open | R128 | Ramón Delgado | 19 | Paraguay |
| 1994 | Australian Open | R128 | Rossana de los Ríos | 18 | Paraguay |
| 1993 | US Open | R128 | Rossana de los Ríos | 17 | Paraguay |
| 1986 | US Open | R128 | Francisco Gonzalez | 30 | Paraguay |
| 1986 | French Open | R128 | Víctor Pecci | 30 | Paraguay |
| 1985 | Australian Open | R64 | Francisco Gonzalez | 30 | Paraguay |
| 1985 | US Open | R128 | Víctor Pecci | 29 | Paraguay |
| 1985 | US Open | R128 | Francisco Gonzalez | 29 | Paraguay |
| 1985 | Wimbledon | R64 | Francisco Gonzalez | 29 | Paraguay |
| 1985 | Wimbledon | R128 | Víctor Pecci | 29 | Paraguay |
| 1985 | French Open | R128 | Víctor Pecci | 29 | Paraguay |
| 1984 | Australian Open | R32 | Francisco Gonzalez | 29 | Paraguay |
| 1984 | US Open | R64 | Francisco Gonzalez | 28 | Paraguay |
| 1984 | Wimbledon | R64 | Francisco Gonzalez | 28 | Paraguay |
| 1984 | French Open | R128 | Víctor Pecci | 28 | Paraguay |
| 1983 | US Open | R128 | Francisco Gonzalez | 27 | Paraguay |
| 1983 | French Open | R64 | Víctor Pecci | 27 | Paraguay |
| 1983 | French Open | R128 | Francisco Gonzalez | 27 | Paraguay |
| 1982 | Australian Open | R64 | Francisco Gonzalez | 27 | Paraguay |
| 1982 | Australian Open | R128 | Víctor Pecci | 27 | Paraguay |
| 1982 | Wimbledon | R64 | Francisco Gonzalez | 26 | Paraguay |
| 1982 | French Open | R64 | Víctor Pecci | 26 | Paraguay |
| 1982 | French Open | R64 | Francisco Gonzalez | 26 | Paraguay |
| 1981 | US Open | R128 | Francisco Gonzalez | 25 | Paraguay |
| 1981 | Wimbledon | R16 | Francisco Gonzalez | 25 | Paraguay |
| 1981 | Wimbledon | R128 | Víctor Pecci | 25 | Paraguay |
| 1981 | French Open | S | Víctor Pecci | 25 | Paraguay |
| 1981 | French Open | R128 | Francisco Gonzalez | 25 | Paraguay |
| 1980 | Australian Open | R32 | Víctor Pecci | 25 | Paraguay |
| 1980 | US Open | R32 | Francisco Gonzalez | 24 | Paraguay |
| 1980 | US Open | R64 | Víctor Pecci | 24 | Paraguay |
| 1980 | Wimbledon | R32 | Víctor Pecci | 24 | Paraguay |
| 1980 | Wimbledon | R128 | Francisco Gonzalez | 24 | Paraguay |
| 1980 | French Open | R64 | Víctor Pecci | 24 | Paraguay |
| 1980 | French Open | R128 | Francisco Gonzalez | 24 | Paraguay |
| 1979 | US Open | R32 | Víctor Pecci | 23 | Paraguay |
| 1979 | US Open | R64 | Francisco Gonzalez | 23 | Paraguay |
| 1979 | Wimbledon | R32 | Víctor Pecci | 23 | Paraguay |
| 1979 | Wimbledon | R64 | Francisco Gonzalez | 23 | Paraguay |
| 1979 | French Open | F | Víctor Pecci | 23 | Paraguay |
| 1979 | French Open | R64 | Francisco Gonzalez | 23 | Paraguay |
| 1978 | US Open | R64 | Víctor Pecci | 22 | Paraguay |
| 1978 | US Open | R128 | Francisco Gonzalez | 22 | Paraguay |
| 1978 | Wimbledon | R128 | Víctor Pecci | 22 | Paraguay |
| 1978 | French Open | R16 | Víctor Pecci | 22 | Paraguay |
| 1977 | US Open | R64 | Francisco Gonzalez | 21 | Paraguay |
| 1977 | US Open | R128 | Víctor Pecci | 21 | Paraguay |
Open Era Grand Slam Tennis
This site is dedicated to Grand Slam tennis stats from the Open Era – for those of us who love the numbers behind the game. Pick any group of players and see how they rank. Compare, filter, and view the same data from different angles – whether you want to explore dominance, consistency, or longevity. In short: It’s all about turning tennis history into insights you can actually play with.