| 10-Aug-1957 | Athens | Clay | F | Yola Ramirez [MEX] | d. | Rosie Reyes [FRA] | 6-2 6-0 | |
| 12-Aug-1957 | Manchester-on-Sea | Grass | F | (1)Althea Gibson [USA] | d. | (2)Louise Brough [USA] | 9-7 6-4 | |
| 12-Aug-1957 | St. Moritz Palace | Clay | F | Ruth Kaufmann [SUI] | d. | Erika Vollmer [GER] | 7-5 8-6 | |
| 12-Aug-1957 | Montreal | None | F | Louise Brown [CAN] | d. | Sieglinde Boeck [CAN] | 6-4 6-3 | |
| 12-Aug-1957 | Ostrava | Clay | F | Vera Sukova [TCH] | d. | Jana Dvorackova [TCH] | 6-1 6-1 | |
| 12-Aug-1957 | Scheveningen | Clay | F | Francoise Rouwenhorst [NED] | d. | Fredy Marinkelle [NED] | 6-0 3-6 6-3 | |
| 12-Aug-1957 | Queens County | None | F | Gwen Mcevans [USA] | d. | Jean Richardson [USA] | 5-7 6-2 6-1 | |
| 12-Aug-1957 | Singapore Malayan Chps | None | F | Rajani Jayasuriya [SRI] | d. | Katherine Leong [MAS] | 6-0 6-0 | |
| 12-Aug-1957 | Davenport | None | F | Judy Axland [USA] | d. | Mary Allen [USA] | 6-4 6-0 | |
| 12-Aug-1957 | Cranleigh | Grass | F | Marion Craig Smith [GBR] | d. | Jill Rook [GBR] | 3-6 7-5 6-1 | |
| 12-Aug-1957 | Worthing | None | F | Gill Evans [GBR] | d. | Sheila Bramley [GBR] | 6-4 1-6 9-7 | |
| 12-Aug-1957 | Trowbridge | Grass | F | Barbara Knapp [GBR] | d. | Viola White [GBR] | 6-3 6-1 | |
| 12-Aug-1957 | Bad Neuenahr | Clay | F | Angela Mortimer [GBR] | d. | Patricia Ward Hales [GBR] | 6-1 8-6 | |
| 12-Aug-1957 | Philadelphia Drexelbrook | None | F | Ann Hoffmann [USA] | d. | Louise Greenfield [USA] | 7-5 6-1 | |
| 12-Aug-1957 | Muncie | None | F | Joan Laskowski [USA] | d. | Linda Lodge [USA] | 6-8 6-4 6-2 | |
| 14-Aug-1957 | Munich | Clay | F | Renee Schuurman [RSA] | d. | Sandra Reynolds [RSA] | 4-6 6-3 9-7 | |
| 15-Aug-1957 | Viareggio | None | F | Daphne Seeney [AUS] | d. | Annalisa Bossi [ITA] | 6-3 7-5 | |
| 15-Aug-1957 | Knokke | Clay | F | Heather Nicholls [RSA] | d. | Christiane Mercelis [BEL] | UNK | |
| 15-Aug-1957 | Le Touquet | None | F | Myrtil Brunnarius [FRA] | d. | Chantal Langanay [FRA] | 6-2 3-6 6-2 | |
| 15-Aug-1957 | Budapest Hungarian Chps | Clay | F | Zsuzsa Kormoczy [HUN] | d. | Jacqueline Kermina [FRA] | 6-3 6-2 | |
| 15-Aug-1957 | Beverly Hills | Hard | F | Dodo Cheney [USA] | d. | Barbara Green [USA] | 6-3 6-0 | |
| 15-Aug-1957 | Baton Rouge | None | F | Carolyn Rodgers [USA] | d. | Sue Zigerbein [USA] | 6-0 6-2 | |