203–252Win–Loss
44.6%Win %
2Titles
| Surface | W | L | % |
|---|---|---|---|
| Hard | 61 | 79 | 43.6% |
| Clay | 48 | 69 | 41.0% |
| Carpet | 44 | 61 | 41.9% |
| Grass | 37 | 34 | 52.1% |
| Unknown | 13 | 9 | 59.1% |
Season by season
| Year | W | L | Titles | % |
|---|---|---|---|---|
| 1983 | 0 | 2 | 0 | 0.0% |
| 1982 | 0 | 2 | 0 | 0.0% |
| 1981 | 0 | 1 | 0 | 0.0% |
| 1980 | 0 | 4 | 0 | 0.0% |
| 1979 | 4 | 8 | 0 | 33.3% |
| 1978 | 10 | 18 | 0 | 35.7% |
| 1977 | 18 | 20 | 0 | 47.4% |
| 1976 | 13 | 20 | 1 | 39.4% |
| 1975 | 13 | 18 | 0 | 41.9% |
| 1974 | 20 | 18 | 1 | 52.6% |
| 1973 | 26 | 36 | 0 | 41.9% |
| 1972 | 30 | 26 | 0 | 53.6% |
| 1971 | 15 | 33 | 0 | 31.3% |
| 1970 | 29 | 21 | 0 | 58.0% |
| 1969 | 8 | 12 | 0 | 40.0% |
| 1968 | 17 | 13 | 0 | 56.7% |
Ranking history
Matches
| Date | Tournament | Round | W/L | Opponent | Opp. rank | Score |
|---|---|---|---|---|---|---|
| 1983-07-25 | Neu Ulm CH | R64 | L | Christoph Zipf | 297 | 6-3 6-4 |
| 1983-04-04 | Johannesburg CH | R64 | L | Denys Maasdorp | 831 | 6-1 7-5 |
| 1982-07-26 | Neu Ulm CH | R32 | L | Guillermo Aubone | 133 | 7-6 6-4 |
| 1982-04-04 | Johannesburg CH | R64 | L | David Smith | – | 7-5 3-6 6-2 |
| 1981-07-06 | Gstaad | R32 | L | Ivan Dupasquier | 309 | 7-5 6-2 |
| 1980-10-27 | Cologne | R32 | L | Marko Ostoja | 377 | 1-6 7-6 6-3 |
| 1980-10-20 | Vienna | R32 | L | Balazs Taroczy | 19 | 1-6 6-3 6-1 |
| 1980-04-08 | Johannesburg | R32 | L | Onny Parun | 214 | 6-4 6-1 |
| 1980-03-10 | Rotterdam | R32 | L | Bernard Boileau | 189 | 6-3 2-6 6-3 |
| 1979-11-27 | Johannesburg | R32 | L | Heinz Gunthardt | 53 | 6-2 6-4 |
| 1979-11-05 | Stockholm | R64 | L | Sherwood Stewart | 98 | 4-6 6-3 6-2 |
| 1979-10-22 | Vienna | QF | L | Gene Mayer | 14 | 6-1 3-6 6-4 |
| 1979-10-22 | Vienna | R16 | W | Heinz Gunthardt | 53 | 4-6 7-5 6-2 |
| 1979-10-22 | Vienna | R32 | W | Eliot Teltscher | 26 | 7-6 6-7 6-3 |
| 1979-10-08 | Tel Aviv | R16 | L | Per Hjertquist | 244 | 6-4 6-2 |
| 1979-10-08 | Tel Aviv | R32 | W | Welry Fritz | 271 | 6-4 5-7 7-5 |
| 1979-04-16 | Johannesburg | R32 | L | Antonio Zugarelli | 107 | 7-5 6-3 |
| 1979-03-26 | Stuttgart Indoor | R16 | L | Vijay Amritraj | 53 | 6-7 6-4 7-5 |
| 1979-03-26 | Stuttgart Indoor | R32 | W | Rod Frawley | 142 | 7-6 6-3 |
| 1979-01-29 | Richmond WCT | R32 | L | Brian Gottfried | 8 | 6-0 7-5 |
| 1979-01-15 | Baltimore WCT | R32 | L | Roscoe Tanner | 11 | 2-6 7-6 7-5 |
| 1978-12-04 | Johannesburg | R32 | L | Raymond Moore | 75 | 6-1 4-6 6-0 |
| 1978-11-14 | Wembley | R32 | L | Eddie Dibbs | 5 | 6-3 6-0 |
| 1978-11-06 | Stockholm | R32 | L | Ilie Nastase | 13 | 6-2 6-4 |
| 1978-11-06 | Stockholm | R64 | W | Bruce Manson | 98 | 7-6 6-4 |
| 1978-10-30 | Cologne | R32 | L | Ferdi Taygan | 107 | 6-3 6-3 |
| 1978-10-29 | Vienna | R16 | L | Tomas Smid | 36 | 3-6 6-3 6-2 |
| 1978-10-29 | Vienna | R32 | W | Richard Lewis | 134 | 6-3 6-7 6-2 |
| 1978-10-09 | Barcelona | R64 | L | Ilie Nastase | 15 | 6-3 6-4 |
| 1978-09-25 | San Francisco | R64 | L | Andrew Pattison | 100 | 6-0 7-5 |
| 1978-09-18 | Los Angeles | R64 | L | Roscoe Tanner | 10 | 7-5 6-2 |
| 1978-08-29 | US Open | R128 | L | Jiri Granat | 105 | 7-5 6-1 |
| 1978-06-26 | Wimbledon | R32 | L | Geoff Masters | 73 | 6-3 7-5 6-1 |
| 1978-06-26 | Wimbledon | R64 | W | Buster C Mottram | 17 | 9-8 6-4 6-3 |
| 1978-06-26 | Wimbledon | R128 | W | Rick Fagel | 76 | 6-1 6-1 6-2 |
| 1978-04-03 | Johannesburg | QF | L | Cliff Richey | 66 | 5-7 6-4 6-3 |
| 1978-04-03 | Johannesburg | R16 | W | Ion Tiriac | 84 | 6-2 6-2 |
| 1978-04-03 | Johannesburg | R32 | W | Peter Fleming | 30 | 6-4 3-6 7-6 |
| 1978-02-27 | Memphis | R32 | L | Jose Higueras | 29 | 6-0 6-3 |
| 1978-02-20 | Denver | QF | L | Arthur Ashe | 98 | 6-3 6-0 |
| 1978-02-20 | Denver | R16 | W | Cliff Drysdale | 28 | 7-5 6-4 |
| 1978-02-20 | Denver | R32 | W | Marty Riessen | 55 | 7-6 6-3 |
| 1978-02-13 | Palm Springs | R64 | L | Stan Smith | 22 | 3-6 6-2 6-1 |
| 1978-02-12 | St. Louis WCT | R32 | L | Vitas Gerulaitis | 4 | 6-0 6-1 |
| 1978-01-23 | Philadelphia WCT | R32 | L | Manuel Orantes | 7 | 6-4 7-5 |
| 1978-01-22 | Baltimore | R16 | L | Ilie Nastase | 10 | 4-6 6-4 6-4 |
| 1978-01-22 | Baltimore | R32 | W | Charlie Pasarell | 137 | 6-2 6-3 |
| 1978-01-09 | Birmingham WCT | R16 | L | Vitas Gerulaitis | 4 | 6-4 6-2 |
| 1978-01-09 | Birmingham WCT | R32 | W | Hubertus Hoyt | 232 | 6-0 6-2 |
| 1977-11-28 | Johannesburg WCT | SF | L | Buster C Mottram | 25 | 6-2 1-6 8-6 |