Houston
Others
Houston
Houston-2, Houston WCT
1968–1986
ClayCarpet
| Edition | Name | Category | Surface | Draw | Champion | Finalist | Score |
|---|---|---|---|---|---|---|---|
| 1986 | Houston | 7 | Carpet | 32 |  Slobodan Zivojinovic |  Scott Davis | 6-1 4-6 6-3 |
| 1985 | Houston | 9 | Carpet | 32 | John McEnroe | Kevin Curren | 7-5 6-1 7-6 |
| 1984 | Houston WCT | Not ranked | Clay | 16 | Mark Dickson | Sammy Giammalva Jr. | 6-3 6-2 |
| 1983 | Houston WCT | Not ranked | Clay | 32 | Ivan Lendl |  Paul McNamee | 6-2 6-0 6-3 |
| 1982 | Houston WCT | Not ranked | Clay | 32 | Ivan Lendl |  Jose-Luis Clerc | 3-6 7-6 6-0 1-4 RET |
| 1981 | Houston WCT | 8 | Clay | 32 | Guillermo Vilas | Sammy Giammalva Jr. | 6-2 6-4 |
| 1980 | Houston WCT | 9 | Clay | 32 | Ivan Lendl | Eddie Dibbs | 6-1 6-3 |
| 1979 | Houston WCT | 9 | Clay | 32 |  Jose Higueras | Gene Mayer | 6-3 2-6 7-6 |
| 1978 | Houston WCT | B | Clay | 32 | Brian Gottfried |  Ilie Nastase | 3-6 6-2 6-1 |
| 1977 | Houston WCT | D | Clay | 16 |  Adriano Panatta | Vitas Gerulaitis | 7-6(4) 6-7(3) 6-1 |
| 1976 | Houston WCT | E | Clay | 16 | Harold Solomon | Ken Rosewall | 6-4 1-6 6-1 |
| 1975 | Houston WCT | E | Clay | 32 | Ken Rosewall |  Cliff Drysdale | 6-3 3-6 6-1 |
| 1974 | Houston WCT | E | Clay | 32 | Rod Laver |  Bjorn Borg | 7-6(5) 6-2 |
| 1973 | Houston WCT | E | Clay | 32 | Ken Rosewall | Fred Stolle | 6-4 6-1 7-5 |
| 1972 | Houston WCT | A | Clay | 32 | Rod Laver | Ken Rosewall | 6-2 6-4 |
| 1971 | Houston | A | Clay | 32 | Cliff Richey | Clark Graebner | 6-1 6-2 6-2 |
| 1970 | Houston | A | Clay | 32 | Clark Graebner | Cliff Richey | 2-6 6-3 5-7 6-3 6-2 |
| 1969 | Houston | A | Clay | 32 |  Zeljko Franulovic |  Rafael Osuna | 7-5 6-3 6-2 |
| 1968 | Houston-2 | A | Clay | 32 | Cliff Richey | YUGBoro Jovanovic | 6-4 6-1 6-0 |