Tournaments
| Year | Tour | Tournament | Surface | Level | Dates | Matches | Champion |
|---|---|---|---|---|---|---|---|
| 1968 | WTA | San Juan | Hard | WTA Tour | 1968-04-01 | 20 | Nancy Richey |
| 1968 | ATP | San Juan | Hard | ATP 500/250 | 1968-04-01 | 31 | Mark Cox |
| 1968 | ATP | Davis Cup SAM SF: PER vs CHI | — | Davis Cup | 1968-03-29 | 4 | - |
| 1968 | ATP | Los Altos Hills WCT | Carpet | ATP 500/250 | 1968-03-28 | 8 | Nikola Pilic |
| 1968 | ATP | Bogota NTL | Clay | ATP 500/250 | 1968-03-27 | 4 | Andres Gimeno |
| 1968 | WTA | New York | Carpet | WTA Tour | 1968-03-26 | 15 | Nancy Richey |
| 1968 | WTA | Menton | Clay | WTA Tour | 1968-03-25 | 29 | Gail Sherriff |
| 1968 | ATP | New York 1 | Carpet | ATP 500/250 | 1968-03-25 | 31 | Arthur Ashe |
| 1968 | ATP | Parioli | Clay | ATP 500/250 | 1968-03-25 | 63 | Ion Tiriac |
| 1968 | WTA | San Francisco | Hard | WTA Tour | 1968-03-25 | 10 | Mimi Wheeler |
| 1968 | ATP | Buenos Aires NTL | Clay | ATP 500/250 | 1968-03-23 | 4 | Rod Laver |
| 1968 | ATP | Davis Cup G2 SF: JPN vs KOR | — | Davis Cup | 1968-03-23 | 4 | - |
| 1968 | ATP | San Diego WCT | Carpet | ATP 500/250 | 1968-03-22 | 8 | Earl Butch Buchholz |
| 1968 | WTA | Kampala | Clay | WTA Tour | 1968-03-21 | 7 | Virginia Wade |
| 1968 | ATP | Davis Cup G2 SF: SRI vs MAS | Clay | Davis Cup | 1968-03-20 | 4 | - |
| 1968 | ATP | Cannes | — | ATP 500/250 | 1968-03-18 | 88 | Ion Tiriac |
| 1968 | WTA | Cannes International | Clay | WTA Tour | 1968-03-18 | 23 | Roberta Beltrame |
| 1968 | WTA | Curacao | Clay | WTA Tour | 1968-03-18 | 9 | Nancy Richey |
| 1968 | ATP | Curacao | Hard | ATP 500/250 | 1968-03-18 | 23 | Marty Riessen |
| 1968 | WTA | Jacksonville | Clay | WTA Tour | 1968-03-18 | 1 | Stephanie Defina |
| 1968 | ATP | Mexico City | — | ATP 500/250 | 1968-03-18 | 28 | Rafael Osuna |
| 1968 | ATP | Sao Paulo NTL 1 | Clay | ATP 500/250 | 1968-03-18 | 6 | Rod Laver |
| 1968 | WTA | Mexico City | Clay | WTA Tour | 1968-03-17 | 14 | Julie Heldman |
| 1968 | WTA | Alexandria | Clay | WTA Tour | 1968-03-11 | 16 | Anna Dmitrieva |
| 1968 | WTA | Beaulieu | Clay | WTA Tour | 1968-03-11 | 16 | Alice Tym |
| 1968 | WTA | Caracas | Hard | WTA Tour | 1968-03-11 | 16 | Ann Jones |
| 1968 | ATP | Caracas | Hard | ATP 500/250 | 1968-03-11 | 30 | Marty Riessen |
| 1968 | WTA | Phoenix | Hard | WTA Tour | 1968-03-11 | 15 | Patti Hogan |
| 1968 | ATP | Phoenix | — | ATP 500/250 | 1968-03-11 | 15 | Stan Smith |
| 1968 | WTA | Barranquilla | Clay | WTA Tour | 1968-03-04 | 19 | Nancy Richey |
| 1968 | ATP | Barranquilla | Clay | ATP 500/250 | 1968-03-04 | 31 | Tom Okker |
| 1968 | WTA | Cannes Montfleury | Clay | WTA Tour | 1968-03-04 | 5 | Marilyn Aschner |
| 1968 | WTA | Hollywood | Hard | WTA Tour | 1968-03-04 | 7 | Mimi Wheeler |
| 1968 | WTA | Redcliffe | — | WTA Tour | 1968-03-04 | 1 | Barbara Hawcroft |
| 1968 | ATP | Long Island Indoors | Carpet | ATP 500/250 | 1968-03-02 | 4 | - |
| 1968 | WTA | Cairo | Clay | WTA Tour | 1968-03-01 | 16 | Gail Sherriff |
| 1968 | WTA | Brussels Indoors | Carpet | WTA Tour | 1968-02-29 | 3 | Christiane Mercelis |
| 1968 | WTA | Perth City | Grass | WTA Tour | 1968-02-29 | 3 | Margaret Court |
| 1968 | ATP | Munich Indoors | Carpet | ATP 500/250 | 1968-02-28 | 15 | Jorgen Ulrich |
| 1968 | ATP | Tulsa WCT | Carpet | ATP 500/250 | 1968-02-27 | 13 | Cliff Drysdale |
| 1968 | ATP | Concord Indoors | Carpet | ATP 500/250 | 1968-02-26 | 11 | Arthur Ashe |
| 1968 | WTA | Juan-les-Pins | Clay | WTA Tour | 1968-02-26 | 1 | Marilyn Aschner |
| 1968 | ATP | Kingston | Hard | ATP 500/250 | 1968-02-26 | 18 | Tom Okker |
| 1968 | WTA | Lyon | Carpet | WTA Tour | 1968-02-26 | 3 | Rosie Reyes |
| 1968 | WTA | Munich Indoors | Carpet | WTA Tour | 1968-02-26 | 12 | Edda Buding |
| 1968 | WTA | Boston | Carpet | WTA Tour | 1968-02-20 | 22 | Billie Jean King |
| 1968 | ATP | Macon | Hard | ATP 500/250 | 1968-02-20 | 23 | Jan Leschly |
| 1968 | ATP | Orlando WCT | Carpet | ATP 500/250 | 1968-02-20 | 13 | Dennis Ralston |
| 1968 | WTA | Moscow Indoor Chps | Carpet | WTA Tour | 1968-02-19 | 8 | Virginia Wade |
| 1968 | WTA | Prague Test | Carpet | WTA Tour | 1968-02-19 | 3 | Marie Pinterova |
| 1968 | ATP | New Orleans WCT | Carpet | ATP 500/250 | 1968-02-16 | 13 | Cliff Drysdale |
| 1968 | WTA | Salem | Hard | WTA Tour | 1968-02-16 | 22 | Billie Jean King |
| 1968 | ATP | Houston WCT | Carpet | ATP 500/250 | 1968-02-13 | 13 | Earl Butch Buchholz |
| 1968 | ATP | Salisbury | Hard | ATP 500/250 | 1968-02-12 | 45 | Cliff Richey |
| 1968 | WTA | Wollongong | Clay | WTA Tour | 1968-02-12 | 8 | Elizabeth Fenton |
| 1968 | ATP | Pittsburgh Indoors | Carpet | ATP 500/250 | 1968-02-10 | 5 | Mark Cox |
| 1968 | ATP | Miami WCT | Carpet | ATP 500/250 | 1968-02-09 | 8 | Earl Butch Buchholz |
| 1968 | WTA | Paris Indoors | Carpet | WTA Tour | 1968-02-09 | 18 | Nell Truman |
| 1968 | ATP | Philadelphia WCT | Carpet | ATP 500/250 | 1968-02-08 | 11 | Manuel Santana |
| 1968 | ATP | Shreveport WCT | Hard | ATP 500/250 | 1968-02-08 | 7 | Dennis Ralston |