# ATP Players - O Source: https://tennis-db.com/players/o Tour: ATP Rows on canonical first page: 52 Total matching players: 52 | Player | Country | Peak rank | Peak Elo | Matches | W-L | Win % | Titles | Slams | Years | URL | | --- | --- | ---: | ---: | ---: | --- | ---: | ---: | ---: | --- | --- | | Manuel Orantes | ESP | 2 | 2229 | 982 | 696-286 | 70.9 | 38 | 1 | 1968-1984 | https://tennis-db.com/players/4516593/manuel-orantes | | Tom Okker | NED | 3 | 2198 | 951 | 672-279 | 70.7 | 37 | 0 | 1968-1981 | https://tennis-db.com/players/4575675/tom-okker | | Reilly Opelka | USA | 17 | 1973 | 243 | 124-119 | 51.0 | 4 | 0 | 2016-2026 | https://tennis-db.com/players/60/reilly-opelka | | Marcos Ondruska | RSA | 27 | 1785 | 242 | 105-137 | 43.4 | 0 | 0 | 1990-2001 | https://tennis-db.com/players/3346133/marcos-ondruska | | Gianni Ocleppo | ITA | 30 | 1806 | 221 | 98-123 | 44.3 | 1 | 0 | 1975-1987 | https://tennis-db.com/players/4400223/gianni-ocleppo | | Jaime Oncins | BRA | 34 | 1796 | 147 | 61-86 | 41.5 | 2 | 0 | 1988-2001 | https://tennis-db.com/players/3351923/jaime-oncins | | Charlie Owens | USA | 36 | 1713 | 139 | 57-82 | 41.0 | 0 | 0 | 1968-1981 | https://tennis-db.com/players/4575723/charlie-owens | | Oscar Otte | GER | 36 | 1863 | 79 | 33-46 | 41.8 | 0 | 0 | 2018-2024 | https://tennis-db.com/players/1129/oscar-otte | | Sebastian Ofner | AUT | 37 | 1822 | 120 | 51-69 | 42.5 | 0 | 0 | 2017-2026 | https://tennis-db.com/players/231/sebastian-ofner | | Bruno Oresar | CRO | 46 | 1713 | 120 | 52-68 | 43.3 | 0 | 0 | 1985-1991 | https://tennis-db.com/players/4131414/bruno-oresar | | Andrei Olhovskiy | RUS | 49 | 1750 | 275 | 113-162 | 41.1 | 2 | 0 | 1987-1998 | https://tennis-db.com/players/3596568/andrei-olhovskiy | | Nduka Odizor | NGR | 52 | 1729 | 201 | 81-120 | 40.3 | 1 | 0 | 1980-1992 | https://tennis-db.com/players/4055914/nduka-odizor | | Christopher O'Connell | AUS | 53 | 1820 | 158 | 62-96 | 39.2 | 0 | 0 | 2017-2026 | https://tennis-db.com/players/214/christopher-o-connell | | Ricki Osterthun | GER | 58 | 1696 | 139 | 60-79 | 43.2 | 1 | 0 | 1984-1990 | https://tennis-db.com/players/4159364/ricki-osterthun | | Menno Oosting | NED | 72 | 1630 | 56 | 22-34 | 39.3 | 0 | 0 | 1984-1994 | https://tennis-db.com/players/3966516/menno-oosting | | Marko Ostoja | CRO | 74 | 1711 | 213 | 77-136 | 36.2 | 1 | 0 | 1979-1990 | https://tennis-db.com/players/3996901/marko-ostoja | | Wayne Odesnik | USA | 77 | 1729 | 99 | 40-59 | 40.4 | 0 | 0 | 2004-2014 | https://tennis-db.com/players/224854/wayne-odesnik | | Renzo Olivo | ARG | 78 | 1696 | 55 | 23-32 | 41.8 | 0 | 0 | 2014-2022 | https://tennis-db.com/players/613/renzo-olivo | | Josselin Ouanna | FRA | 88 | 1666 | 26 | 9-17 | 34.6 | 0 | 0 | 2008-2013 | https://tennis-db.com/players/467687/josselin-ouanna | | Noam Okun | ISR | 95 | 1628 | 63 | 20-43 | 31.7 | 0 | 0 | 1999-2010 | https://tennis-db.com/players/506187/noam-okun | | Oleg Ogorodov | UZB | 101 | 1563 | 64 | 19-45 | 29.7 | 0 | 0 | 1994-2002 | https://tennis-db.com/players/3024458/oleg-ogorodov | | Daniel Orsanic | ARG | 107 | 1545 | 45 | 14-31 | 31.1 | 0 | 0 | 1990-1998 | https://tennis-db.com/players/3617183/daniel-orsanic | | Lamine Ouahab | MAR | 114 | 1563 | 15 | 5-10 | 33.3 | 0 | 0 | 2006-2018 | https://tennis-db.com/players/452459/lamine-ouahab | | Genaro Alberto Olivieri | ARG | 131 | 1565 | 3 | 2-1 | 66.7 | 0 | 0 | 2023-2023 | https://tennis-db.com/players/328/genaro-alberto-olivieri | | Toma Ovici | ROU | 133 | 1617 | 37 | 16-21 | 43.2 | 0 | 0 | 1968-1976 | https://tennis-db.com/players/4602259/toma-ovici | | Eduardo Osta | ESP | 140 | 1500 | 23 | 5-18 | 21.7 | 0 | 0 | 1982-1989 | https://tennis-db.com/players/4273325/eduardo-osta | | Oscar Ortiz | MEX | 141 | 1500 | 8 | 0-8 | 0.0 | 0 | 0 | 1994-1996 | https://tennis-db.com/players/3423781/oscar-ortiz | | Albano Olivetti | FRA | 161 | 1611 | 14 | 5-9 | 35.7 | 0 | 0 | 2012-2016 | https://tennis-db.com/players/484207/albano-olivetti | | Guillermo Olaso | ESP | 167 | 1594 | 6 | 2-4 | 33.3 | 0 | 0 | 2011-2013 | https://tennis-db.com/players/453841/guillermo-olaso | | Gauthier Onclin | BEL | 169 | 1572 | 3 | 1-2 | 33.3 | 0 | 0 | 2025-2026 | https://tennis-db.com/players/366/gauthier-onclin | | Ricardo Ojeda Lara | ESP | 171 | 1610 | 6 | 3-3 | 50.0 | 0 | 0 | 2018-2018 | https://tennis-db.com/players/484645/ricardo-ojeda-lara | | Dawid Olejniczak | POL | 185 | 1559 | 3 | 0-3 | 0.0 | 0 | 0 | 2007-2008 | https://tennis-db.com/players/517899/dawid-olejniczak | | Philipp Oswald | AUT | 206 | 1548 | 4 | 1-3 | 25.0 | 0 | 0 | 2008-2014 | https://tennis-db.com/players/453105/philipp-oswald | | Edvaldo Oliveira | BRA | 208 | 1500 | 4 | 0-4 | 0.0 | 0 | 0 | 1982-1989 | https://tennis-db.com/players/4127653/edvaldo-oliveira | | Jim Osborne | USA | 211 | 1817 | 239 | 118-121 | 49.4 | 0 | 0 | 1968-1982 | https://tennis-db.com/players/4570782/jim-osborne | | Guillermo Oropez | USA | 222 | 1531 | 8 | 3-5 | 37.5 | 0 | 0 | 1968-1977 | https://tennis-db.com/players/4570780/guillermo-oropez | | Scott Oudsema | USA | 255 | 1500 | 5 | 1-4 | 20.0 | 0 | 0 | 2005-2007 | https://tennis-db.com/players/494619/scott-oudsema | | Eduardo Oncins | BRA | 256 | 1500 | 4 | 0-4 | 0.0 | 0 | 0 | 1982-1984 | https://tennis-db.com/players/4139297/eduardo-oncins | | Michael Oberleitner | AUT | 280 | 1500 | 3 | 0-3 | 0.0 | 0 | 0 | 1985-1989 | https://tennis-db.com/players/4001591/michael-oberleitner | | Dale Ogden | USA | 287 | 1500 | 2 | 0-2 | 0.0 | 0 | 0 | 1972-1976 | https://tennis-db.com/players/4585531/dale-ogden | | Johan Ortegren | SWE | 295 | 1516 | 3 | 1-2 | 33.3 | 0 | 0 | 1999-2000 | https://tennis-db.com/players/2613361/johan-ortegren | | Michihisa Onoda | JPN | 301 | 1500 | 4 | 0-4 | 0.0 | 0 | 0 | 2000-2002 | https://tennis-db.com/players/3075802/michihisa-onoda | | Yshai Oliel | ISR | 305 | 1500 | 2 | 0-2 | 0.0 | 0 | 0 | 2021-2022 | https://tennis-db.com/players/1226004/yshai-oliel | | Jean Pierre Olivier | FRA | 365 | 1500 | 2 | 0-2 | 0.0 | 0 | 0 | 1968-1968 | https://tennis-db.com/players/4595263/jean-pierre-olivier | | Goran Oresic | CRO | 368 | 1500 | 2 | 0-2 | 0.0 | 0 | 0 | 1995-1996 | https://tennis-db.com/players/3460637/goran-oresic | | Talal Ouahabi | MAR | 382 | 1500 | 2 | 0-2 | 0.0 | 0 | 0 | 1999-2003 | https://tennis-db.com/players/483585/talal-ouahabi | | Javier Ordaz | MEX | 390 | 1500 | 2 | 0-2 | 0.0 | 0 | 0 | 1978-1981 | https://tennis-db.com/players/4575722/javier-ordaz | | Shigeru Ota | JPN | 509 | 1500 | 2 | 0-2 | 0.0 | 0 | 0 | 1988-1989 | https://tennis-db.com/players/4119656/shigeru-ota | | Jack Oates | USA | 662 | 1516 | 2 | 1-1 | 50.0 | 0 | 0 | 1968-1968 | https://tennis-db.com/players/4575865/jack-oates | | Miguel Olvera | ECU | 711 | 1529 | 16 | 7-9 | 43.8 | 0 | 0 | 1968-1970 | https://tennis-db.com/players/4061040/miguel-olvera | | Don O'Connell | IRL | 1516 | 1516 | 3 | 1-2 | 33.3 | 0 | 0 | 1972-1973 | https://tennis-db.com/players/3004830/don-o-connell | | Ross Olivieri | AUS | - | 1500 | 2 | 0-2 | 0.0 | 0 | 0 | 1972-1980 | https://tennis-db.com/players/4580544/ross-olivieri | --- Canonical URL: https://tennis-db.com/players/o Data source: TennisDB (tennis-db.com)