122–112Win–Loss
52.1%Win %
0Titles
| Surface | W | L | % |
|---|---|---|---|
| Clay | 100 | 84 | 54.3% |
| Hard | 9 | 9 | 50.0% |
| Grass | 6 | 10 | 37.5% |
| Unknown | 6 | 2 | 75.0% |
| Carpet | 1 | 7 | 12.5% |
Season by season
| Year | W | L | Titles | % |
|---|---|---|---|---|
| 1979 | 1 | 1 | 0 | 50.0% |
| 1978 | 4 | 1 | 0 | 80.0% |
| 1977 | 1 | 2 | 0 | 33.3% |
| 1976 | 4 | 10 | 0 | 28.6% |
| 1975 | 21 | 22 | 0 | 48.8% |
| 1974 | 5 | 19 | 0 | 20.8% |
| 1973 | 19 | 11 | 0 | 63.3% |
| 1972 | 13 | 9 | 0 | 59.1% |
| 1971 | 15 | 9 | 0 | 62.5% |
| 1970 | 11 | 9 | 0 | 55.0% |
| 1969 | 11 | 6 | 0 | 64.7% |
| 1968 | 17 | 13 | 0 | 56.7% |
Ranking history
Matches
| Date | Tournament | Round | W/L | Opponent | Opp. rank | Score |
|---|---|---|---|---|---|---|
| 1979-06-18 | Berlin | R16 | L | Klaus Eberhard | 180 | 6-3 7-5 |
| 1979-06-18 | Berlin | R32 | W | Deon Joubert | 68 | 6-2 6-2 |
| 1978-06-19 | Berlin | F | L | Vladimir Zednik | 50 | 6-4 7-5 6-2 |
| 1978-06-19 | Berlin | SF | W | Peter Elter | 156 | 6-2 6-2 7-6 |
| 1978-06-19 | Berlin | QF | W | Hans Gildemeister | 30 | 7-6 6-1 |
| 1978-06-19 | Berlin | R16 | W | Patricio Cornejo | 80 | 7-6 6-2 |
| 1978-06-19 | Berlin | R32 | W | Jiri Hrebec | 76 | 6-2 6-3 |
| 1977-06-13 | Berlin | R16 | L | Francois Jauffret | 58 | 4-6 7-5 6-2 |
| 1977-06-13 | Berlin | R32 | W | Jean Francois Caujolle | 95 | 6-4 4-2 RET |
| 1977-01-01 | Australian Open | R64 | L | Dick Bohrnstedt | 138 | 3-6 6-3 6-3 6-3 |
| 1976-11-23 | Johannesburg - WCT | R64 | W | Keith Richardson | – | 6-1 6-2 |
| 1976-11-23 | Johannesburg - WCT | R32 | L | Raul Ramirez | 10 | 6-1 6-2 |
| 1976-10-04 | Aviles | R32 | L | Zeljko Franulovic | 48 | 6-2 6-2 |
| 1976-07-18 | Kitzbuhel | R64 | L | Peter Pokorny | 221 | 6-3 4-6 6-3 |
| 1976-06-14 | Berlin | R32 | L | Jairo Velasco | 235 | 6-4 6-4 |
| 1976-05-17 | Hamburg | R64 | L | Kjell Johansson | 97 | 6-2 1-6 10-8 |
| 1976-04-04 | Barcelona | R64 | L | Jaime Pinto Bravo | 126 | 6-3 3-6 6-2 |
| 1976-04-04 | Nice | R64 | L | Jose Higueras | 46 | 6-4 6-4 |
| 1976-03-28 | Valencia | R16 | L | Juan Gisbert | 41 | 6-7 6-1 6-1 |
| 1976-03-28 | Valencia | R32 | W | Juan Ignacio Muntanola | 148 | 6-4 6-2 |
| 1976-03-28 | Valencia | R64 | W | Hans Kary | 84 | 7-6 6-0 |
| 1975-12-31 | Auckland | R16 | L | Onny Parun | 26 | 7-6 7-6 |
| 1975-12-31 | Auckland | R32 | W | Peter Langsford | 396 | 4-6 6-4 6-1 |
| 1975-12-26 | Australian Open | R64 | L | Brad Drewett | – | 6-1 6-4 6-4 |
| 1975-12-21 | Sydney Outdoor | R32 | L | Raymond Moore | 61 | 4-6 6-3 6-2 |
| 1975-12-21 | Sydney Outdoor | R64 | W | Terry Rocavert | – | 7-6 7-6 |
| 1975-10-13 | Barcelona | R32 | L | Julian Ganzabal | 117 | 3-6 6-2 6-3 |
| 1975-10-13 | Barcelona | R64 | W | Carlos Kirmayr | 213 | 6-1 6-2 |
| 1975-10-12 | Madrid | R32 | L | Adriano Panatta | 28 | 7-5 6-2 |
| 1975-10-12 | Madrid | R64 | W | Julian Ganzabal | 117 | 4-6 6-0 7-5 |
| 1975-10-05 | Aviles | R32 | L | Nikola Pilic | 63 | 6-3 6-4 |
| 1975-08-18 | South Orange | R32 | L | Geoff Masters | 57 | 6-2 6-2 |
| 1975-08-11 | Toronto | R64 | L | Phil Dent | 30 | 3-6 7-6 6-2 |
| 1975-08-05 | Louisville | R32 | L | Zeljko Franulovic | 111 | 6-2 6-3 |
| 1975-08-05 | Louisville | R64 | W | Cliff Richey | 22 | 4-6 6-2 7-5 |
| 1975-08-04 | Indianapolis | R32 | L | Hans Kary | 79 | 6-3 6-2 |
| 1975-08-04 | Indianapolis | R64 | W | Hans Jurgen Pohmann | 55 | 6-2 6-4 |
| 1975-07-13 | Kitzbuhel | R16 | L | Adriano Panatta | 28 | 6-4 6-4 |
| 1975-07-13 | Kitzbuhel | R32 | W | Milan Holecek | 84 | 4-6 7-5 6-1 |
| 1975-06-23 | Wimbledon | R128 | L | Milan Holecek | 75 | 6-2 6-4 6-4 |
| 1975-06-04 | Roland Garros | R128 | L | Andrew Pattison | 37 | 7-5 6-4 |
| 1975-05-26 | Dusseldorf | R16 | L | Georges Goven | 88 | W/O |
| 1975-05-26 | Dusseldorf | R32 | W | Tito Vazquez | 136 | 7-6 6-4 |
| 1975-05-19 | Hamburg | R16 | L | Paolo Bertolucci | 48 | 6-1 4-6 6-0 |
| 1975-05-19 | Hamburg | R32 | W | Eddie Dibbs | 26 | 7-5 7-6 |
| 1975-05-19 | Hamburg | R64 | W | Jun Kuki | 98 | 2-6 6-3 6-1 |
| 1975-05-07 | Munich | QF | L | Guillermo Vilas | 2 | 6-2 7-5 |
| 1975-05-07 | Munich | R16 | W | Ivan Molina | 98 | 6-2 6-1 |
| 1975-05-07 | Munich | R32 | W | Jun Kuki | 98 | 6-4 6-2 |
| 1975-05-02 | Davis Cup EUR PR: FRG vs SUI | RR | W | Peter Kanderal | 156 | 6-4 6-0 6-2 |
Data: Jeff Sackmann / Tennis Abstract — CC BY-NC-SA 4.0