Chigasaki CH 1980 ATP
Final
| Winner | Loser | Score | |
|---|---|---|---|
| Markus Gunthardt | d. | Cliff Letcher | 2-6 6-4 6-3 |
Semifinals
| Winner | Loser | Score | |
|---|---|---|---|
| Cliff Letcher | d. | Tsuyoshi Fukui | 7-6 2-6 6-4 |
| Markus Gunthardt | d. | John Marks | 7-5 7-5 |
Quarterfinals
| Winner | Loser | Score | |
|---|---|---|---|
| Markus Gunthardt | d. | Wayne Pascoe | 6-4 7-6 |
| John Marks | d. | Robert Bettauer | 6-2 6-2 |
| Cliff Letcher | d. | Jun Kamiwazumi | 7-5 6-3 |
| Tsuyoshi Fukui | d. | Chris Kachel | 6-3 4-6 6-2 |
Round of 16
| Winner | Loser | Score | |
|---|---|---|---|
| Robert Bettauer | d. | Shinichi Sakamoto | 6-0 4-6 6-3 |
| Tsuyoshi Fukui | d. | Jun Kuki | 4-6 7-5 6-1 |
| Markus Gunthardt | d. | Alvin Gardiner | 6-7 6-4 6-4 |
| Cliff Letcher | d. | Craig A Miller | 6-1 6-2 |
| John Marks | d. | Shigeyuki Nishio | 6-3 6-3 |
| Jun Kamiwazumi | d. | Rand Evett | 6-3 6-7 6-3 |
| Wayne Pascoe | d. | Syd Ball | 6-3 4-6 6-4 |
| Chris Kachel | d. | Mike Shore | 6-4 6-3 |
Round of 32
| Winner | Loser | Score | |
|---|---|---|---|
| Mike Shore | d. | Wally Masur | 6-1 2-6 6-3 |
| Wayne Pascoe | d. | David Whyte | 6-2 3-6 6-0 |
| Shigeyuki Nishio | d. | Jeremy Cohen | 6-3 6-4 |
| Craig A Miller | d. | Chris Johnstone | 6-4 6-2 |
| Jun Kuki | d. | Kiyoshi Tanabe | 6-3 6-4 |
| Markus Gunthardt | d. | Peter Campbell | 6-3 6-4 |
| Rand Evett | d. | Nobuya Tamura | 6-4 2-6 6-3 |
| Robert Bettauer | d. | John Fitzgerald | 6-3 4-6 6-0 |
| Tsuyoshi Fukui | d. | Tetsu Kuramitsu | 6-1 6-4 |
| Alvin Gardiner | d. | Wayne Hampson | 6-3 4-6 6-3 |
| Cliff Letcher | d. | Beejong Sisson | 6-3 6-1 |
| Shinichi Sakamoto | d. | Matt Doyle | 6-3 6-7 6-4 |
| John Marks | d. | Greg Whitecross | 7-6 6-7 6-3 |
| Jun Kamiwazumi | d. | Saeed Meer | 7-6 6-2 |
| Syd Ball | d. | Scott Carnahan | 6-4 6-4 |
| Chris Kachel | d. | Bill Gilmour | 7-6 6-1 |