Tournaments
| Year | Tour | Tournament | Surface | Level | Dates | Matches | Champion |
|---|---|---|---|---|---|---|---|
| 1978 | ATP | Colombus | Clay | ATP International Series | 1978-08-07 | 31 | Arthur Ashe |
| 1978 | ATP | Indianapolis | Clay | ATP International Series | 1978-08-07 | 63 | Jimmy Connors |
| 1978 | WTA | Indianapolis | Clay | WTA Tour | 1978-08-07 | 47 | Dana Gilbert |
| 1978 | ATP | New Orleans | Carpet | ATP International Series | 1978-08-06 | 31 | Roscoe Tanner |
| 1978 | ATP | Davis Cup EUR PQ: TUR vs IRI | - | Davis Cup | 1978-08-01 | 4 | - |
| 1978 | WTA | Newcastle | - | WTA Tour | 1978-07-31 | 31 | Iris Riedel Kuhn |
| 1978 | ATP | North Conway | Clay | ATP International Series | 1978-07-31 | 47 | Eddie Dibbs |
| 1978 | ATP | Louisville | Clay | ATP International Series | 1978-07-30 | 63 | Harold Solomon |
| 1978 | ATP | South Orange | Clay | ATP International Series | 1978-07-30 | 31 | Guillermo Vilas |
| 1978 | ATP | Hilversum | Clay | ATP International Series | 1978-07-24 | 31 | Balazs Taroczy |
| 1978 | WTA | Kitzbuhel | - | WTA Tour | 1978-07-24 | 11 | Virginia Ruzici |
| 1978 | ATP | Kitzbuhel | Clay | ATP International Series | 1978-07-24 | 31 | Chris Lewis |
| 1978 | ATP | Washington | Clay | ATP International Series | 1978-07-23 | 63 | Jimmy Connors |
| 1978 | WTA | Bastad | - | WTA Tour | 1978-07-17 | 3 | Elly Appel |
| 1978 | ATP | Bastad | Clay | ATP International Series | 1978-07-17 | 31 | Bjorn Borg |
| 1978 | WTA | Frinton | - | WTA Tour | 1978-07-17 | 60 | Corinne Molesworth |
| 1978 | WTA | Soviet Championships | Clay | WTA Tour | 1978-07-17 | 1 | Natasha Chmyreva |
| 1978 | ATP | Stuttgart Outdoor | Clay | ATP International Series | 1978-07-17 | 31 | Ulrich Pinner |
| 1978 | ATP | Davis Cup EUR SF: SWE vs ESP | Clay | Davis Cup | 1978-07-14 | 4 | - |
| 1978 | ATP | Davis Cup EUR SF: FRA vs GBR | Clay | Davis Cup | 1978-07-13 | 4 | - |
| 1978 | ATP | Davis Cup EUR SF: HUN vs ITA | - | Davis Cup | 1978-07-13 | 4 | - |
| 1978 | ATP | Davis Cup EUR SF: TCH vs ROU | Clay | Davis Cup | 1978-07-13 | 4 | - |
| 1978 | ATP | Cincinnati | Clay | Masters 1000 | 1978-07-10 | 63 | Eddie Dibbs |
| 1978 | WTA | Edinburgh Scottish Chps | - | WTA Tour | 1978-07-10 | 27 | Carrie Meyer |
| 1978 | ATP | Forest Hills WCT | Clay | ATP International Series | 1978-07-10 | 21 | Vitas Gerulaitis |
| 1978 | WTA | Gstaad | Clay | WTA Tour | 1978-07-10 | 12 | Virginia Ruzici |
| 1978 | ATP | Gstaad | Clay | ATP International Series | 1978-07-10 | 31 | Guillermo Vilas |
| 1978 | ATP | Newport | Grass | ATP International Series | 1978-07-10 | 31 | Bernard Mitton |
| 1978 | WTA | Wimbledon Plate | Grass | WTA Tour | 1978-07-03 | 46 | Mona Guerrant |
| 1978 | ATP | Wimbledon | Grass | Grand Slam | 1978-06-26 | 127 | Bjorn Borg |
| 1978 | WTA | Wimbledon | Grass | Grand Slam | 1978-06-26 | 95 | Martina Navratilova |
| 1978 | ATP | Berlin | Clay | ATP International Series | 1978-06-19 | 31 | Vladimir Zednik |
| 1978 | WTA | Eastbourne | Grass | WTA Tour | 1978-06-19 | 63 | Martina Navratilova |
| 1978 | WTA | Edinburgh | - | WTA Tour | 1978-06-19 | 1 | Judy Erskine |
| 1978 | ATP | Queen's Club | Grass | ATP International Series | 1978-06-19 | 63 | Tony Roche |
| 1978 | ATP | Birmingham | Grass | ATP International Series | 1978-06-18 | 63 | Jimmy Connors |
| 1978 | ATP | Davis Cup EUR QF: GBR vs AUT | Grass | Davis Cup | 1978-06-16 | 4 | - |
| 1978 | ATP | Davis Cup EUR QF: HUN vs FRG | - | Davis Cup | 1978-06-16 | 4 | - |
| 1978 | ATP | Davis Cup EUR QF: TCH vs POL | Clay | Davis Cup | 1978-06-16 | 4 | - |
| 1978 | ATP | Davis Cup EUR QF: YUG vs SWE | Clay | Davis Cup | 1978-06-13 | 4 | - |
| 1978 | ATP | Brussels | Clay | ATP International Series | 1978-06-12 | 31 | Werner Zirngibl |
| 1978 | WTA | Chichester | Grass | WTA Tour | 1978-06-12 | 31 | Evonne Goolagong |
| 1978 | WTA | Liverpool | - | WTA Tour | 1978-06-12 | 3 | Anne Hobbs |
| 1978 | WTA | Beckenham | Grass | WTA Tour | 1978-06-05 | 40 | Evonne Goolagong |
| 1978 | ATP | Roland Garros | Clay | Grand Slam | 1978-05-29 | 127 | Bjorn Borg |
| 1978 | WTA | Roland Garros | Clay | Grand Slam | 1978-05-29 | 63 | Virginia Ruzici |
| 1978 | WTA | Surbiton | Grass | WTA Tour | 1978-05-29 | 95 | Evonne Goolagong |
| 1978 | ATP | Munich | Clay | ATP International Series | 1978-05-23 | 31 | Guillermo Vilas |
| 1978 | WTA | Glasgow | - | WTA Tour | 1978-05-22 | 43 | Charlene Murphy |
| 1978 | ATP | Rome | Clay | Masters 1000 | 1978-05-22 | 63 | Bjorn Borg |
| 1978 | WTA | Rome | Clay | WTA Tour | 1978-05-22 | 31 | Regina Marsikova |
| 1978 | ATP | Florence | Clay | ATP International Series | 1978-05-21 | 31 | Jose Luis Clerc |
| 1978 | ATP | Hamburg | Clay | ATP International Series | 1978-05-15 | 63 | Guillermo Vilas |
| 1978 | WTA | Hamburg | Clay | WTA Tour | 1978-05-15 | 31 | Mima Jausovec |
| 1978 | WTA | Los Angeles Sectionals | - | WTA Tour | 1978-05-14 | 31 | Stacy Margolin |
| 1978 | ATP | Dallas WCT | Carpet | ATP International Series | 1978-05-09 | 7 | Vitas Gerulaitis |
| 1978 | ATP | Nations Cup | Clay | ATP International Series | 1978-05-08 | 30 | Manuel Orantes |
| 1978 | WTA | Sutton | - | WTA Tour | 1978-05-08 | 51 | Linda Mottram |
| 1978 | WTA | Paddington | - | WTA Tour | 1978-05-01 | 54 | - |
| 1978 | ATP | Tulsa | Hard | ATP International Series | 1978-04-30 | 31 | Eddie Dibbs |