Match log updated: 2026-08-31 13:51 UTC
Clark Graebner — ATP Match Log
503 main-draw matches · 342–161 · 68.0% wins
| Opponent | Score | Result | H2H | Match Data | Date ↑ | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|---|
| Quentin Pretorius | 6-1 6-1 | W | — | Match data | Jan 3, 1968* | R64 | Cape Town | ATP 250 | Hard |
| Francois Van Der Merwe | 6-1 6-0 | W | — | Match data | Jan 4, 1968* | R32 | Cape Town | ATP 250 | Hard |
| Hans Joachim Ploetz | 6-4 4-6 2-6 | L | H2H | Match data | Jan 5, 1968* | R16 | Cape Town | ATP 250 | Hard |
| Jackie Saul | 6-1 5-7 0-6 | L | — | Match data | Jan 6, 1968* | R16 | Port Elizabeth | ATP 250 | Hard |
| Pierre Manidis | 6-0 6-4 | W | — | Match data | Jan 10, 1968* | R64 | Bloemfontein | ATP 250 | Hard |
| Kerneels Kasch | 6-0 6-2 | W | — | Match data | Jan 11, 1968* | R32 | Bloemfontein | ATP 250 | Hard |
| Jackie Saul | 6-2 6-1 | W | — | Match data | Jan 12, 1968* | R16 | Bloemfontein | ATP 250 | Hard |
| Thomaz Koch | 6-8 6-2 6-1 | W | H2H | Match data | Jan 13, 1968* | QF | Bloemfontein | ATP 250 | Hard |
| Marty Riessen | 7-5 1-6 4-6 | L | H2H | Match data | Jan 13, 1968* | SF | Bloemfontein | ATP 250 | Hard |
| Terry Rosenberg | 6-3 6-3 6-4 | W | — | Match data | Jan 16, 1968* | R64 | Durban 1 | ATP 250 | Hard |
| Rauty Krog | 6-1 6-1 6-1 | W | — | Match data | Jan 17, 1968* | R32 | Durban 1 | ATP 250 | Hard |
| Robert Maud | 5-7 6-1 8-10 5-7 | L | H2H | Match data | Jan 18, 1968* | R16 | Durban 1 | ATP 250 | Hard |
| Ron Holmberg | 7-9 10-12 | L | — | Match data | Feb 7, 1968* | QF | Richmond | ATP 250 | Hard |
| Javier Sanjines | 6-0 6-0 | W | — | Match data | Feb 14, 1968* | R64 | Salisbury | ATP 250 | Hard |
| Lenny Schloss | 6-4 6-2 | W | — | Match data | Feb 15, 1968* | R32 | Salisbury | ATP 250 | Hard |
| Mike Estep | 1-0 (ret.) | W | H2H | Match data | Feb 16, 1968* | R16 | Salisbury | ATP 250 | Hard |
| Bob Lutz | 6-3 6-2 | W | H2H | Match data | Feb 17, 1968* | QF | Salisbury | ATP 250 | Hard |
| Charlie Pasarell | 16-14 4-6 8-6 4-6 6-3 | W | H2H | Match data | Feb 17, 1968* | SF | Salisbury | ATP 250 | Hard |
| Cliff Richey | 4-6 4-6 4-6 | L | H2H | Match data | Feb 18, 1968* | F | Salisbury | ATP 250 | Hard |
| Zeljko Franulovic | 6-4 6-4 | W | H2H | Match data | Feb 23, 1968* | R16 | Macon | ATP 250 | Hard |
| Jim Mcmanus | 6-3 6-4 | W | H2H | Match data | Feb 24, 1968* | QF | Macon | ATP 250 | Hard |
| Jan Leschly | 4-6 8-6 13-15 4-6 | L | — | Match data | Feb 25, 1968* | SF | Macon | ATP 250 | Hard |
| Torben Ulrich | 6-2 6-4 | W | H2H | Match data | Mar 1, 1968* | R16 | Concord Indoors | ATP 250 | Carpet |
| Chuck Mckinley | 31-24 | W | — | Match data | Mar 2, 1968 | RR | Long Island Indoors | ATP 250 | Carpet |
| Manuel Santana | 31-22 | W | H2H | Match data | Mar 2, 1968 | RR | Long Island Indoors | ATP 250 | Carpet |
| Rafael Osuna | 6-3 6-2 | W | — | Match data | Mar 2, 1968* | QF | Concord Indoors | ATP 250 | Carpet |
| Jan Leschly | 4-6 6-0 1-6 | L | — | Match data | Mar 2, 1968* | SF | Concord Indoors | ATP 250 | Carpet |
| Ray Ruffels | 9-7 4-6 6-3 | W | H2H | Match data | Mar 28, 1968* | R32 | New York 1 | ATP 250 | Carpet |
| Gene Scott | 6-3 4-6 6-4 | W | H2H | Match data | Mar 29, 1968* | R16 | New York 1 | ATP 250 | Carpet |
| Zeljko Franulovic | 10-8 7-5 | W | H2H | Match data | Mar 30, 1968* | QF | New York 1 | ATP 250 | Carpet |
| Arthur Ashe | 6-3 5-7 4-6 1-6 | L | H2H | Match data | Mar 30, 1968* | SF | New York 1 | ATP 250 | Carpet |
| Louis Gordon | 6-4 6-0 6-3 | W | — | Match data | Apr 3, 1968* | R64 | South African Open | ATP 250 | Hard |
| Keith Carpenter | 6-4 6-1 7-5 | W | — | Match data | Apr 4, 1968* | R32 | South African Open | ATP 250 | Hard |
| Brian Fairlie | 3-6 6-3 8-6 6-4 | W | H2H | Match data | Apr 5, 1968* | R16 | South African Open | ATP 250 | Hard |
| Robert Maud | 6-3 6-4 6-3 | W | H2H | Match data | Apr 6, 1968* | QF | South African Open | ATP 250 | Hard |
| Tom Okker | 6-4 4-6 4-6 7-5 3-6 | L | H2H | Match data | Apr 6, 1968* | SF | South African Open | ATP 250 | Hard |
| Joe Brandi | 6-4 6-4 | W | — | Match data | Apr 18, 1968* | R32 | Houston 2 | ATP 250 | Clay |
| Vicente Zarazua | 6-3 6-3 | W | — | Match data | Apr 19, 1968* | R16 | Houston 2 | ATP 250 | Clay |
| Mike Belkin | 4-6 1-6 | L | H2H | Match data | Apr 20, 1968* | QF | Houston 2 | ATP 250 | Clay |
| Butch Krikorian | 6-2 6-1 | W | — | Match data | May 31, 1968* | R64 | Sacramento | ATP 250 | Hard |
| Dean Schlobohm | 6-3 6-2 | W | — | Match data | Jun 1, 1968* | R32 | Sacramento | ATP 250 | Hard |
| Erik Van Dillen | 6-2 6-2 | W | — | Match data | Jun 2, 1968* | R16 | Sacramento | ATP 250 | Hard |
| Bob Lutz | 6-4 7-5 | W | H2H | Match data | Jun 3, 1968* | QF | Sacramento | ATP 250 | Hard |
| Whitney Reed | 6-2 6-4 6-0 | W | — | Match data | Jun 3, 1968* | SF | Sacramento | ATP 250 | Hard |
| Stan Smith | 10-8 6-4 6-2 | W | H2H | Match data | Jun 4, 1968* | F | Sacramento | ATP 250 | Hard |
| Onny Parun | 6-0 5-7 6-3 | W | H2H | Match data | Jun 13, 1968* | R32 | Bristol | ATP 250 | Grass |
| John Alexander | (w/o) | L | H2H | Match data | Jun 13, 1968* | R32 | Lugano | ATP 250 | Clay |
| Frew Mcmillan | 6-2 6-1 | W | H2H | Match data | Jun 14, 1968* | R16 | Bristol | ATP 250 | Grass |
| Bob Hewitt | 6-2 6-2 | W | H2H | Match data | Jun 15, 1968* | QF | Bristol | ATP 250 | Grass |
| Jim Mcmanus | 6-3 6-3 | W | H2H | Match data | Jun 15, 1968* | SF | Bristol | ATP 250 | Grass |
| Arthur Ashe | 4-6 3-6 | L | H2H | Match data | Jun 16, 1968* | F | Bristol | ATP 250 | Grass |
| Premjit Lall | 6-1 6-4 | W | H2H | Match data | Jun 19, 1968* | R64 | Queen's Club Championships | ATP 250 | Grass |
| Fred Stolle | 6-4 11-9 | W | H2H | Match data | Jun 20, 1968* | R32 | Queen's Club Championships | ATP 250 | Grass |
| Dick Crealy | 6-3 8-6 | W | H2H | Match data | Jun 21, 1968* | R16 | Queen's Club Championships | ATP 250 | Grass |
| Roy Emerson | 11-9 6-3 | W | H2H | Match data | Jun 22, 1968* | QF | Queen's Club Championships | ATP 250 | Grass |
| Alex Metreveli | 6-4 6-2 | W | — | Match data | Jun 22, 1968* | SF | Queen's Club Championships | ATP 250 | Grass |
| Roy Barth | 6-4 6-3 6-8 6-8 11-9 | W | H2H | Match data | Jun 26, 1968* | R128 | Wimbledon | Grand Slam | Grass |
| Jorgen Ulrich | 6-2 6-0 6-4 | W | — | Match data | Jun 28, 1968* | R64 | Wimbledon | Grand Slam | Grass |
| Manuel Santana | 9-7 6-2 6-1 | W | H2H | Match data | Jun 30, 1968* | R32 | Wimbledon | Grand Slam | Grass |
| Fred Stolle | 6-1 7-5 7-5 | W | H2H | Match data | Jul 3, 1968* | R16 | Wimbledon | Grand Slam | Grass |
| Raymond Moore | 6-2 6-0 9-7 | W | H2H | Match data | Jul 5, 1968* | QF | Wimbledon | Grand Slam | Grass |
| Tony Roche | 7-9 10-8 4-6 6-8 | L | H2H | Match data | Jul 7, 1968* | SF | Wimbledon | Grand Slam | Grass |
| Frithjof Prydz | 6-4 6-4 6-3 | W | — | Match data | Jul 11, 1968* | R32 | Swedish Open | ATP 250 | Clay |
| Jose Luis Arillla | 2-6 0-6 3-6 | L | — | Match data | Jul 12, 1968* | R16 | Swedish Open | ATP 250 | Clay |
| Francisco Castillo | 6-0 6-0 | W | — | Match data | Jul 17, 1968* | R64 | Milwaukee | ATP 250 | Clay |
| Bob Stuckert | 6-1 6-1 | W | — | Match data | Jul 18, 1968* | R32 | Milwaukee | ATP 250 | Clay |
| Allan Stone | 6-4 6-3 | W | H2H | Match data | Jul 19, 1968* | R16 | Milwaukee | ATP 250 | Clay |
| Mike Belkin | 6-1 6-1 6-2 | W | H2H | Match data | Jul 20, 1968* | QF | Milwaukee | ATP 250 | Clay |
| Charlie Pasarell | 6-1 6-8 6-4 6-4 | W | H2H | Match data | Jul 20, 1968* | SF | Milwaukee | ATP 250 | Clay |
| Stan Smith | 6-3 7-5 6-0 | W | H2H | Match data | Jul 21, 1968* | F | Milwaukee | ATP 250 | Clay |
| Anthony Bull | 6-1 6-3 | W | — | Match data | Jul 31, 1968* | R64 | South Orange | ATP 250 | Grass |
| Butch Seewagen | 6-3 9-7 | W | H2H | Match data | Aug 1, 1968* | R32 | South Orange | ATP 250 | Grass |
| Humphrey Hose | 6-3 6-4 | W | H2H | Match data | Aug 2, 1968* | R16 | South Orange | ATP 250 | Grass |
| Jaime Fillol | 6-3 11-9 | W | H2H | Match data | Aug 3, 1968* | QF | South Orange | ATP 250 | Grass |
| Jim Osborne | 6-3 1-6 7-5 | W | H2H | Match data | Aug 3, 1968* | SF | South Orange | ATP 250 | Grass |
| Charlie Pasarell | 6-3 6-4 2-6 3-6 4-6 | L | H2H | Match data | Aug 4, 1968* | F | South Orange | ATP 250 | Grass |
| Sherwood Stewart | 6-2 6-3 3-6 5-7 7-5 | W | — | Match data | Aug 19, 1968* | R64 | Boston 2 | ATP 250 | Grass |
| Chum Steele Iii | 6-2 6-3 6-2 | W | — | Match data | Aug 20, 1968* | R32 | Boston 2 | ATP 250 | Grass |
| Premjit Lall | 6-3 6-4 10-8 | W | H2H | Match data | Aug 21, 1968* | R16 | Boston 2 | ATP 250 | Grass |
| Joaquin Loyo Mayo | 6-1 6-4 6-3 | W | — | Match data | Aug 22, 1968* | QF | Boston 2 | ATP 250 | Grass |
| Bob Lutz | 4-6 5-7 4-6 | L | H2H | Match data | Aug 22, 1968* | SF | Boston 2 | ATP 250 | Grass |
| Premjit Lall | 6-3 1-6 7-5 6-4 | W | H2H | Match data | Aug 31, 1968* | R128 | US Open | Grand Slam | Grass |
| Jim Mcmanus | 6-1 6-4 14-12 | W | H2H | Match data | Sep 2, 1968* | R64 | US Open | Grand Slam | Grass |
| Roger Taylor | 6-3 6-4 6-4 | W | H2H | Match data | Sep 4, 1968* | R32 | US Open | Grand Slam | Grass |
| Gene Scott | 7-5 6-0 6-3 | W | H2H | Match data | Sep 7, 1968* | R16 | US Open | Grand Slam | Grass |
| John Newcombe | 5-7 11-9 6-1 6-4 | W | H2H | Match data | Sep 9, 1968* | QF | US Open | Grand Slam | Grass |
| Arthur Ashe | 6-4 6-8 5-7 2-6 | L | H2H | Match data | Sep 11, 1968* | SF | US Open | Grand Slam | Grass |
| Barry Mackay | 7-9 6-3 6-4 | W | H2H | Match data | Sep 16, 1968* | R64 | Los Angeles Open | ATP 250 | Hard |
| Mal Anderson | 15-13 6-4 | W | H2H | Match data | Sep 17, 1968* | R32 | Los Angeles Open | ATP 250 | Hard |
| Jim Osborne | 6-2 7-5 | W | H2H | Match data | Sep 17, 1968* | R16 | Las Vegas | ATP 250 | Hard |
| Tony Roche | 7-5 0-6 10-8 | W | H2H | Match data | Sep 18, 1968* | R16 | Los Angeles Open | ATP 250 | Hard |
| Bob Lutz | 6-3 6-4 | W | H2H | Match data | Sep 18, 1968* | SF | Las Vegas | ATP 250 | Hard |
| Rod Laver | 6-2 4-6 1-6 | L | H2H | Match data | Sep 19, 1968* | QF | Los Angeles Open | ATP 250 | Hard |
| Arthur Ashe | 7-9 3-6 | L | H2H | Match data | Sep 19, 1968* | F | Las Vegas | ATP 250 | Hard |
| Keith Wooldridge | 1-6 1-5 (ret.) | L | — | Match data | Nov 14, 1968* | R32 | London 2 | ATP 250 | Hard |
| Adriano Panatta | 11-9 7-9 3-6 | L | H2H | Match data | Dec 12, 1968* | R32 | Brisbane | ATP 250 | Grass |
| Marcello Lara | 6-4 6-4 | W | H2H | Match data | Jan 30, 1969* | R16 | Omaha | ATP 250 | Hard |
| William Brown | 6-2 6-4 | W | H2H | Match data | Jan 31, 1969* | QF | Omaha | ATP 250 | Hard |
| Joaquin Loyo Mayo | 5-7 3-6 | L | — | Match data | Jan 31, 1969* | SF | Omaha | ATP 250 | Hard |
| Jim Mcmanus | 8-6 6-2 | W | H2H | Match data | Feb 5, 1969* | QF | Richmond | ATP 250 | Carpet |
| Torben Ulrich | 7-5 10-8 | W | H2H | Match data | Feb 5, 1969* | SF | Richmond | ATP 250 | Carpet |
| Thomaz Koch | 6-3 10-12 9-7 | W | H2H | Match data | Feb 6, 1969* | F | Richmond | ATP 250 | Carpet |
| Istvan Gulyas | 6-2 6-2 | W | H2H | Match data | Feb 12, 1969* | R64 | Salisbury | ATP 250 | Hard |
| Herb Fitzgibbon | 6-4 6-4 | W | H2H | Match data | Feb 13, 1969* | R32 | Salisbury | ATP 250 | Hard |
| Dick Stockton | 6-4 6-4 | W | H2H | Match data | Feb 13, 1969* | QF | Buffalo | ATP 250 | Hard |
| Tom Edlefsen | 6-3 6-2 | W | H2H | Match data | Feb 13, 1969* | SF | Buffalo | ATP 250 | Hard |
| Robert Wilson | 6-4 6-4 | W | — | Match data | Feb 14, 1969* | R16 | Salisbury | ATP 250 | Hard |
| Mark Cox | 2-6 9-7 8-6 | W | H2H | Match data | Feb 14, 1969* | F | Buffalo | ATP 250 | Hard |
| Ron Holmberg | 6-4 1-6 6-3 | W | — | Match data | Feb 15, 1969* | QF | Salisbury | ATP 250 | Hard |
| Stan Smith | 9-11 5-7 6-4 3-6 | L | H2H | Match data | Feb 15, 1969* | SF | Salisbury | ATP 250 | Hard |
| Nicholas Kalogeropoulos | 2-6 12-10 3-6 | L | H2H | Match data | Feb 20, 1969* | R32 | Macon | ATP 250 | Carpet |
| Ove Bengtson | 4-6 6-3 12-10 | W | H2H | Match data | Mar 27, 1969* | R32 | New York | ATP 250 | Carpet |
| Zeljko Franulovic | 3-6 2-6 | L | H2H | Match data | Mar 28, 1969* | R16 | New York | ATP 250 | Carpet |
| Tom Edlefsen | 4-6 6-4 7-5 | W | H2H | Match data | Apr 11, 1969* | R16 | Charlotte | ATP 250 | Clay |
| Bill Bowrey | 6-4 6-2 | W | H2H | Match data | Apr 12, 1969* | QF | Charlotte | ATP 250 | Clay |
| Jan Kodes | 2-6 3-6 | L | H2H | Match data | Apr 12, 1969* | SF | Charlotte | ATP 250 | Clay |
| Sherwood Stewart | 6-2 6-1 | W | — | Match data | Apr 17, 1969* | R32 | Houston | ATP 250 | Clay |
| Ismail El Shafei | 6-2 6-2 | W | — | Match data | Apr 18, 1969* | R16 | Houston | ATP 250 | Clay |
| Bob Mckinley | 6-4 6-2 | W | — | Match data | Apr 19, 1969* | QF | Houston | ATP 250 | Clay |
| Zeljko Franulovic | 4-6 6-3 2-6 4-6 | L | H2H | Match data | Apr 19, 1969* | SF | Houston | ATP 250 | Clay |
| Tom Brown | 8-6 6-1 | W | H2H | Match data | May 30, 1969* | R16 | Sacramento | ATP 250 | Hard |
| Mike Machette | 6-4 8-6 | W | H2H | Match data | May 31, 1969* | QF | Sacramento | ATP 250 | Hard |
| Jim Mcmanus | 6-2 6-3 | W | H2H | Match data | May 31, 1969* | SF | Sacramento | ATP 250 | Hard |
| Erik Van Dillen | 6-4 3-6 4-6 6-0 7-5 | W | — | Match data | Jun 1, 1969* | F | Sacramento | ATP 250 | Hard |
| Cliff Drysdale | 6-1 6-4 | W | H2H | Match data | Jun 14, 1969* | QF | Bristol | ATP 250 | Grass |
| Pierre Barthes | 8-10 4-6 | L | H2H | Match data | Jun 14, 1969* | SF | Bristol | ATP 250 | Grass |
| Nicholas Kalogeropoulos | (w/o) | W | H2H | Match data | Jun 17, 1969* | R128 | Queen's Club Championships | ATP 250 | Grass |
| John Alexander | 7-5 8-6 | W | H2H | Match data | Jun 18, 1969* | R64 | Queen's Club Championships | ATP 250 | Grass |
| Bob Hewitt | 6-2 3-6 3-6 | L | H2H | Match data | Jun 19, 1969* | R32 | Queen's Club Championships | ATP 250 | Grass |
| Ray Ruffels | 6-4 8-6 6-3 | W | H2H | Match data | Jun 25, 1969* | R128 | Wimbledon | Grand Slam | Grass |
| John Brown | 6-2 3-0 (ret.) | W | — | Match data | Jun 27, 1969* | R64 | Wimbledon | Grand Slam | Grass |
| Ilie Nastase | 7-5 7-6 6-4 | W | H2H | Match data | Jun 29, 1969* | R32 | Wimbledon | Grand Slam | Grass |
| Andres Gimeno | 7-9 6-5 (ret.) | W | H2H | Match data | Jul 2, 1969* | R16 | Wimbledon | Grand Slam | Grass |
| Tony Roche | 6-4 6-4 3-6 4-6 9-11 | L | H2H | Match data | Jul 4, 1969* | QF | Wimbledon | Grand Slam | Grass |
| Peter Burwash | 6-1 6-4 | W | H2H | Match data | Jul 9, 1969* | R64 | Washington Open | ATP 250 | Clay |
| Pancho Guzman | 9-7 5-7 4-6 | L | — | Match data | Jul 10, 1969* | R32 | Washington Open | ATP 250 | Clay |
| Vittorio Crotta | 6-3 6-2 | W | — | Match data | Jul 23, 1969* | R64 | Indianapolis | ATP 250 | Clay |
| Jean Baptiste Chanfreau | 6-4 6-1 | W | H2H | Match data | Jul 24, 1969* | R32 | Indianapolis | ATP 250 | Clay |
| Patricio Cornejo | 6-3 6-3 | W | H2H | Match data | Jul 25, 1969* | R16 | Indianapolis | ATP 250 | Clay |
| Luis Ayala | 6-1 (ret.) | W | H2H | Match data | Jul 26, 1969* | QF | Indianapolis | ATP 250 | Clay |
| Zeljko Franulovic | 3-6 7-9 1-6 | L | H2H | Match data | Jul 26, 1969* | SF | Indianapolis | ATP 250 | Clay |
| Bill Cullen | 6-2 6-2 | W | — | Match data | Jul 30, 1969* | R64 | South Orange | ATP 250 | Grass |
| Patricio Cornejo | 6-1 6-0 | W | H2H | Match data | Jul 31, 1969* | R32 | South Orange | ATP 250 | Grass |
| Paul Gerken | 8-6 7-5 | W | H2H | Match data | Aug 1, 1969* | R16 | South Orange | ATP 250 | Grass |
| Charlie Pasarell | 11-13 6-4 7-5 | W | H2H | Match data | Aug 2, 1969* | QF | South Orange | ATP 250 | Grass |
| Bob Lutz | 6-3 7-5 | W | H2H | Match data | Aug 2, 1969* | SF | South Orange | ATP 250 | Grass |
| Stan Smith | 1-6 4-6 4-6 | L | H2H | Match data | Aug 3, 1969* | F | South Orange | ATP 250 | Grass |
| Tico Carrero | (w/o) | W | — | Match data | Aug 6, 1969* | R64 | Southampton | ATP 250 | Grass |
| Dick Stockton | 6-3 6-4 | W | H2H | Match data | Aug 7, 1969* | R32 | Southampton | ATP 250 | Grass |
| Richard Russell | 5-7 6-1 6-2 | W | H2H | Match data | Aug 8, 1969* | R16 | Southampton | ATP 250 | Grass |
| Patricio Cornejo | 6-3 6-2 | W | H2H | Match data | Aug 9, 1969* | QF | Southampton | ATP 250 | Grass |
| Bill Bowrey | 6-4 6-3 6-2 | W | H2H | Match data | Aug 9, 1969* | SF | Southampton | ATP 250 | Grass |
| Bob Lutz | 6-2 6-2 6-4 | W | H2H | Match data | Aug 10, 1969* | F | Southampton | ATP 250 | Grass |
| Zan Guerry | 6-3 6-2 | W | H2H | Match data | Aug 18, 1969* | R64 | Boston | ATP 250 | Grass |
| Ray Keldie | 6-3 6-0 | W | H2H | Match data | Aug 20, 1969* | R32 | Boston | ATP 250 | Grass |
| Jean Pierre Courcol | 6-2 6-3 | W | — | Match data | Aug 21, 1969* | R16 | Boston | ATP 250 | Grass |
| Charlie Pasarell | 6-8 6-3 6-3 2-6 4-6 | L | H2H | Match data | Aug 22, 1969* | QF | Boston | ATP 250 | Grass |
| Tom Mozur | 6-0 7-5 6-2 | W | — | Match data | Aug 29, 1969* | R128 | US Open | Grand Slam | Grass |
| Roger Taylor | 6-4 1-6 0-2 (ret.) | L | H2H | Match data | Aug 31, 1969* | R64 | US Open | Grand Slam | Grass |
| Premjit Lall | 6-4 6-2 | W | H2H | Match data | Feb 1, 1970* | R16 | Omaha | ATP 250 | Hard |
| Thomaz Koch | 7-9 1-6 | L | H2H | Match data | Feb 2, 1970* | QF | Omaha | ATP 250 | Hard |
| Premjit Lall | 6-1 4-6 6-4 | W | H2H | Match data | Feb 4, 1970* | R64 | Philadelphia Wct | ATP 250 | Carpet |
| Ken Rosewall | 6-3 6-2 | W | H2H | Match data | Feb 5, 1970* | R32 | Philadelphia Wct | ATP 250 | Carpet |
| Manuel Santana | 6-3 4-6 6-3 | W | H2H | Match data | Feb 6, 1970* | R16 | Philadelphia Wct | ATP 250 | Carpet |
| Dennis Ralston | 6-8 4-6 | L | H2H | Match data | Feb 7, 1970* | QF | Philadelphia Wct | ATP 250 | Carpet |
| Cliff Richey | 6-3 | W | H2H | Match data | Feb 9, 1970 | RR | New York | ATP 250 | Carpet |
| Stan Smith | 4-6 | L | H2H | Match data | Feb 9, 1970 | RR | New York | ATP 250 | Carpet |
| Ilie Nastase | 4-6 | L | H2H | Match data | Feb 9, 1970 | RR | New York | ATP 250 | Carpet |
| Nikola Pilic | 4-6 6-4 6-4 | W | H2H | Match data | Feb 18, 1970* | R32 | Salisbury | ATP 250 | Hard |
| Zeljko Franulovic | 11-9 6-3 | W | H2H | Match data | Feb 18, 1970* | QF | Richmond | ATP 250 | Carpet |
| Stan Smith | 6-4 1-6 4-6 | L | H2H | Match data | Feb 18, 1970* | SF | Richmond | ATP 250 | Carpet |
| Ismail El Shafei | 10-12 3-6 | L | — | Match data | Feb 19, 1970* | R16 | Salisbury | ATP 250 | Hard |
| Onny Parun | 3-6 4-6 | L | H2H | Match data | Mar 1, 1970* | R16 | Macon | ATP 250 | Carpet |
| Jim Osborne | 6-1 12-10 | W | H2H | Match data | Mar 5, 1970* | R32 | Hampton | ATP 250 | Carpet |
| Brian Fairlie | 4-6 6-2 6-2 | W | H2H | Match data | Mar 6, 1970* | R16 | Hampton | ATP 250 | Carpet |
| Ilie Nastase | 8-6 7-5 | W | H2H | Match data | Mar 7, 1970* | QF | Hampton | ATP 250 | Carpet |
| Thomaz Koch | 6-4 8-10 6-4 3-6 3-6 | L | H2H | Match data | Mar 7, 1970* | SF | Hampton | ATP 250 | Carpet |
| Harold Solomon | 7-5 6-2 | W | H2H | Match data | Mar 28, 1970* | R32 | Jacksonville | ATP 250 | Clay |
| Richard Russell | 7-5 6-3 | W | H2H | Match data | Mar 29, 1970* | R16 | Jacksonville | ATP 250 | Clay |
| Ray Keldie | 2-6 6-3 6-2 | W | H2H | Match data | Mar 30, 1970* | QF | Jacksonville | ATP 250 | Clay |
| Brian Fairlie | 6-1 4-6 8-10 | L | H2H | Match data | Mar 30, 1970* | SF | Jacksonville | ATP 250 | Clay |
| Peter Szoke | 6-1 6-2 | W | H2H | Match data | Apr 1, 1970* | R32 | San Juan | ATP 250 | Hard |
| Gerald Battrick | 0-6 10-8 7-5 | W | H2H | Match data | Apr 2, 1970* | R16 | San Juan | ATP 250 | Hard |
| Bob Carmichael | 7-5 7-5 | W | H2H | Match data | Apr 3, 1970* | QF | San Juan | ATP 250 | Hard |
| Arthur Ashe | (w/o) | L | H2H | Match data | Apr 3, 1970* | SF | San Juan | ATP 250 | Hard |
| Jack Lowe | 6-1 6-1 | W | — | Match data | Apr 18, 1970* | R32 | Charlotte | ATP 250 | Clay |
| Peter Curtis | 9-7 6-0 | W | H2H | Match data | Apr 19, 1970* | R16 | Charlotte | ATP 250 | Clay |
| Tom Gorman | 6-3 6-3 | W | H2H | Match data | Apr 20, 1970* | QF | Charlotte | ATP 250 | Clay |
| Bob Carmichael | 4-6 3-6 | L | H2H | Match data | Apr 20, 1970* | SF | Charlotte | ATP 250 | Clay |
| Lornie Kuhle | 7-5 6-3 | W | — | Match data | Apr 24, 1970* | R32 | Houston | ATP 250 | Clay |
| Tom Edlefsen | 6-3 4-6 6-3 | W | H2H | Match data | Apr 25, 1970* | R16 | Houston | ATP 250 | Clay |
| Brian Fairlie | 6-0 6-2 | W | H2H | Match data | Apr 26, 1970* | QF | Houston | ATP 250 | Clay |
| Manuel Santana | 6-4 6-4 6-4 | W | H2H | Match data | Apr 26, 1970* | SF | Houston | ATP 250 | Clay |
| Cliff Richey | 2-6 6-3 5-7 6-3 6-2 | W | H2H | Match data | Apr 27, 1970* | F | Houston | ATP 250 | Clay |
| Jim Mcmanus | 6-4 6-2 | W | H2H | Match data | May 6, 1970* | QF | Kansas City | ATP 250 | Hard |
| Bob Lutz | 2-6 7-6 6-3 | W | H2H | Match data | May 6, 1970* | SF | Kansas City | ATP 250 | Hard |
| Arthur Ashe | 6-7 1-6 | L | H2H | Match data | May 7, 1970* | F | Kansas City | ATP 250 | Hard |
| Ken Stuart | 6-3 7-5 | W | — | Match data | May 11, 1970* | R16 | Sacramento | ATP 250 | Hard |
| Tom Edlefsen | 3-6 2-6 | L | H2H | Match data | May 12, 1970* | QF | Sacramento | ATP 250 | Hard |
| Graham Primrose | 6-2 6-2 | W | — | Match data | Jun 11, 1970* | R32 | Beckenham | ATP 250 | Grass |
Estimated from the tournament schedule where an exact match date is unavailable. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Mapping details.