| 25-Aug-1958 | St. Moritz Suvretta | Clay | F | Martha Wolf Peterdy [FRA] | d. | Margaret Hellyer [AUS] | 6-4 4-6 8-6 | |
| 25-Aug-1958 | Istanbul | None | F | Lea Pericoli [ITA] | d. | Shirley Bloomer [GBR] | 6-2 4-6 6-3 | |
| 25-Aug-1958 | Saint-Palais | None | F | Florence De La Courtie [FRA] | d. | Marie Odile Bouchet [FRA] | 6-0 6-1 | |
| 26-Aug-1958 | Poertschach | Clay | F | Angela Mortimer [GBR] | d. | Rosie Reyes [FRA] | 6-2 6-1 | |
| 28-Aug-1958 | Saint-Gervais | None | F | Ruth Kaufmann [SUI] | d. | Florence De La Courtie [FRA] | 6-3 7-5 | |
| 28-Aug-1958 | La Baule | None | F | Paule Courteix [FRA] | d. | Solange Galtier [FRA] | 4-6 6-1 6-1 | |
| 28-Aug-1958 | Athens | Clay | F | Shirley Bloomer [GBR] | d. | Lea Pericoli [ITA] | 4-6 6-4 6-4 | |
| 28-Aug-1958 | Budleigh Salterton | Grass | F | Jill Rook [GBR] | d. | Margaret Grace [GBR] | 7-5 6-2 | |
| 28-Aug-1958 | New Malden | None | F | Pat Wheeler [GBR] | d. | Jean Knight [GBR] | 9-7 7-5 | |
| 28-Aug-1958 | Janesville | None | F | Jean Sorum [USA] | d. | Katie Meyer [USA] | 3-6 6-0 6-1 | |
| 28-Aug-1958 | Amarillo | None | F | Nancy Neeld [USA] | d. | Ginger Connolly [USA] | 6-0 4-6 6-4 | |
| 28-Aug-1958 | Klamath Falls | None | F | Valerie Hunt [USA] | d. | Barbara Holden [USA] | 9-7 6-4 | |
| 28-Aug-1958 | Reno | None | F | Linda Vail [USA] | d. | June Hurtt [USA] | 6-2 6-4 | |
| 28-Aug-1958 | Toledo | None | F | Sara Mae Turber [USA] | d. | Judy Hagan [USA] | 6-4 6-1 | |
| 28-Aug-1958 | Austin Labor Day | None | F | Virginia Brown [USA] | d. | Betty Gray [USA] | 6-4 2-6 6-3 | |
| 28-Aug-1958 | San Francisco Chinese Natls | None | F | Carole Lum [USA] | d. | Jackie Yee [USA] | 6-0 6-1 | |
| 28-Aug-1958 | Santa Monica | None | F | Dodo Cheney [USA] | d. | Diane Wootton [USA] | 10-8 6-4 | |
| 29-Aug-1958 | US National Championships | Grass | F | (1)Althea Gibson [USA] | d. | Darlene Hard [USA] | 3-6 6-1 6-2 | |
| 01-Sep-1958 | Katowice | Clay | F | Vera Sukova [TCH] | d. | Jadwiga Jedrzejowska [POL] | 8-6 6-2 | |
| 01-Sep-1958 | Aix-les-Bains | None | F | Josette Billaz [FRA] | d. | Ginette Bucaille [FRA] | 6-3 6-4 | |
| 01-Sep-1958 | Lee-on-Solent | Grass | F | Margaret Odonnell [AUS] | d. | Deidre Catt [GBR] | 6-2 6-3 | |
| 01-Sep-1958 | Augusta | None | F | Mary Anne Connerat [USA] | d. | Dottie Nelson [USA] | 6-3 6-1 | |
| 02-Sep-1958 | Baden | Clay | F | Angela Mortimer [GBR] | d. | Edda Buding [FRG] | 5-7 6-3 8-6 | |