Mary-Lou Daniels
This page provides a comprehensive overview of Mary-Lou Daniels’s Grand Slam career. It combines key background information and career-level statistics with a complete, filterable list of her tournament results, showing how far she progressed in each Grand Slam event across her career.
Insights
Peak results came early, then settled into a long R128 pattern
Her best Grand Slam finishes were four R32s and eight R64s, with 19 R128 exits overall. The only R32s came in 1979, 1981, and 1984, while the final six recorded appearances from 1987 through 1992 all ended at R128.
1981 was her strongest season by depth and volume
She reached the R32 twice in 1981, at Wimbledon and the French Open, and also played the Australian Open and US Open that year. That makes 1981 the only season in the data with two results better than R64.
Wimbledon was her best major by repeated deeper runs
Across Wimbledon entries, she reached R32 once, R64 four times, and R128 five times. No other Slam shows as many results beyond the opening round, and Wimbledon also contains one of her two R32s in 1981.
Her final Grand Slam stretch was limited to three straight first-round exits
In 1992 she appeared only at the Australian Open, Wimbledon, and US Open, and all three ended in R128. Those were her last recorded Grand Slam matches after a career spanning 1979-1990 and 1992.
She was still competitive into her mid-20s, but the ceiling rarely moved
Her best age-specific results include R32 at age 18 in 1979 and again at age 19 and 21, plus R64 at ages 20, 22, 23, and 24. After age 24, every listed result is R128.
Basics
| Born | 6 August 1961 |
| Gender | Female |
| AKA | Mary Lou Piatek |
| Nation | United States |
| Era | Open Era |
| Grand Slam careerCareer | 1979-1990, 1992 |
Grand Slam statistics
| Tournaments | 31 |
| Best results | 4 x R32 8 x R64 19 x R128 |
| Total matches | 47 |
| W/L-record | 16-31 (34% won) |
Compared with other women
| In the Open Era | #682 of 1961 |
| With overlapping career | #255 of 528 |
| From United States | #156 of 449 |
| Born in 1961 | #8 of 25 |
| Year | Tournament | Result | Age |
|---|---|---|---|
| 1992 | US Open | R128 | 31 |
| 1992 | Wimbledon | R128 | 30 |
| 1992 | Australian Open | R128 | 30 |
| 1990 | US Open | R128 | 29 |
| 1990 | Wimbledon | R128 | 28 |
| 1989 | US Open | R128 | 28 |
| 1989 | Wimbledon | R128 | 27 |
| 1988 | US Open | R128 | 27 |
| 1988 | Wimbledon | R128 | 26 |
| 1987 | US Open | R128 | 26 |
| 1987 | Wimbledon | R128 | 25 |
| 1986 | US Open | R128 | 25 |
| 1986 | Wimbledon | R64 | 24 |
| 1985 | US Open | R64 | 24 |
| 1985 | Wimbledon | R128 | 23 |
| 1984 | Australian Open | R32 | 23 |
| 1984 | US Open | R128 | 23 |
| 1984 | Wimbledon | R64 | 22 |
| 1983 | US Open | R64 | 22 |
| 1983 | Wimbledon | R128 | 21 |
| 1983 | French Open | R128 | 21 |
| 1982 | US Open | R128 | 21 |
| 1982 | Wimbledon | R64 | 20 |
| 1982 | French Open | R64 | 20 |
| 1981 | Australian Open | R64 | 20 |
| 1981 | US Open | R128 | 20 |
| 1981 | Wimbledon | R32 | 19 |
| 1981 | French Open | R32 | 19 |
| 1980 | US Open | R64 | 19 |
| 1980 | Wimbledon | R128 | 18 |
| 1979 | US Open | R32 | 18 |
Open Era Grand Slam Tennis