Match log updated: 2026-08-15 21:17 UTC
Mary Lou Piatek — WTA Match Log
28 main-draw matches · 16–12 · 57.1% wins
| Opponent | Score | Result | H2H | Match Data | Date ↓ | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|---|
| Mareen Louie Harper | 4-6 5-7 | L | H2H | Match data | Dec 19, 1980* | R16 | Tucson | WTA 250 | Carpet |
| Carrie Meyer | 6-2 6-2 | W | H2H | Match data | Dec 18, 1980* | R32 | Tucson | WTA 250 | Carpet |
| Andrea Jaeger | 0-6 2-6 | L | H2H | Match data | Nov 15, 1980* | SF | Tampa | WTA 250 | Hard |
| Beth Norton | 7-6 6-2 | W | H2H | Match data | Nov 15, 1980* | QF | Tampa | WTA 250 | Hard |
| Kathy Horvath | 6-0 6-3 | W | H2H | Match data | Nov 14, 1980* | R16 | Tampa | WTA 250 | Hard |
| Diane Morrison | 6-0 6-1 | W | H2H | Match data | Nov 13, 1980* | R32 | Tampa | WTA 250 | Hard |
| Regina Marsikova | 5-7 4-6 | L | H2H | Match data | Oct 17, 1980* | R16 | Deerfield Beach | WTA 250 | Hard |
| Lynn Epstein | 6-0 3-6 6-3 | W | H2H | Match data | Oct 16, 1980* | R32 | Deerfield Beach | WTA 250 | Hard |
| Sylvia Hanika | 4-6 5-7 | L | H2H | Match data | Aug 29, 1980* | R64 | US Open | Grand Slam | Hard |
| Ann Kiyomura Hayashi | 6-1 7-5 | W | H2H | Match data | Aug 28, 1980* | R128 | US Open | Grand Slam | Hard |
| Andrea Jaeger | 1-6 1-6 | L | H2H | Match data | Aug 9, 1980* | QF | Indianapolis | WTA 250 | Clay |
| Rosalyn Fairbank | 4-6 6-3 7-5 | W | H2H | Match data | Aug 8, 1980* | R16 | Indianapolis | WTA 250 | Clay |
| Janet Newberry | 6-1 6-2 | W | H2H | Match data | Aug 7, 1980* | R32 | Indianapolis | WTA 250 | Clay |
| Jane Preyer | 6-2 6-1 | W | H2H | Match data | Aug 6, 1980* | R64 | Indianapolis | WTA 250 | Clay |
| Martina Navratilova | 3-6 0-6 | L | H2H | Match data | Jul 27, 1980* | F | Richmond | WTA 250 | Carpet |
| Betsy Nagelsen | 6-0 6-0 | W | H2H | Match data | Jul 26, 1980* | SF | Richmond | WTA 250 | Carpet |
| Rosalyn Fairbank | 6-2 6-3 | W | H2H | Match data | Jul 26, 1980* | QF | Richmond | WTA 250 | Carpet |
| Sherry Acker | 6-2 6-3 | W | H2H | Match data | Jul 25, 1980* | R16 | Richmond | WTA 250 | Carpet |
| Trey Lewis | 6-1 2-6 6-2 | W | H2H | Match data | Jul 24, 1980* | R32 | Richmond | WTA 250 | Carpet |
| Deborah Jevans | 2-6 6-4 1-6 | L | H2H | Match data | Jun 25, 1980* | R128 | Wimbledon | Grand Slam | Grass |
| Dianne Fromholtz | 4-6 0-6 | L | H2H | Match data | Jun 18, 1980* | R64 | Eastbourne Open | WTA 250 | Grass |
| Joanne Russell | 6-3 5-7 3-6 | L | H2H | Match data | Mar 14, 1980* | R16 | Boston | WTA 250 | Carpet |
| Anne Smith | 6-3 6-3 | W | H2H | Match data | Mar 13, 1980* | R32 | Boston | WTA 250 | Carpet |
| Sue Barker | 3-6 0-6 | L | H2H | Match data | Feb 21, 1980* | R32 | Detroit | WTA 250 | Carpet |
| Betsy Nagelsen | 6-3 6-2 | W | H2H | Match data | Feb 20, 1980* | R64 | Detroit | WTA 250 | Carpet |
| Tracy Austin | 0-6 1-6 | L | H2H | Match data | Jan 31, 1980* | R32 | Seattle | WTA 250 | Carpet |
| Dianne Fromholtz | 2-6 1-6 | L | H2H | Match data | Jan 25, 1980* | R16 | Chicago | WTA 250 | Carpet |
| Jo Durie | 6-3 6-2 | W | H2H | Match data | Jan 24, 1980* | R32 | Chicago | WTA 250 | Carpet |
Estimated from the tournament schedule where an exact match date is unavailable. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Mapping details.