Most wins in same season on Clay in Quarterfinals at Best of 1
Most wins in same season on Clay in Quarterfinals at Best of 1
| Rank | Player | Wins | Year |
|---|---|---|---|
| 1 |  Guillermo Vilas | 17 | 1977 |
| 2 | Guillermo Vilas | 14 | 1975 |
| 3 |  Manuel Orantes | 13 | 1975 |
| 4 |  Thomas Muster | 12 | 1995 |
| 5 | Manuel Orantes | 12 | 1973 |
| 6 | Jose-Luis Clerc | 12 | 1982 |
| 7 | Guillermo Vilas | 11 | 1981 |
| 8 |  Ilie Nastase | 11 | 1973 |
| 9 | Guillermo Vilas | 11 | 1974 |
| 10 | Ilie Nastase | 10 | 1975 |