Patricio Cornejo
      Patricio Cornejo| Country (sports) | 
  Chile | 
|---|
| Residence | 
Santiago, Chile | 
|---|
| Born | 
 (1944-06-06) June 6, 1944 Llolleo, Chile | 
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| Height | 
1.80 m (5 ft 11 in) | 
|---|
| Retired | 
1983 | 
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| Plays | 
Right-handed (one-handed backhand) | 
|---|
| Singles | 
|---|
| Career record | 
104–184 | 
|---|
| Career titles | 
0 | 
|---|
| Highest ranking | 
No. 65 (4 September 1974) | 
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| Grand Slam Singles results | 
|---|
| French Open | 
QF (1974) | 
|---|
| Wimbledon | 
2R (1967) | 
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| US Open | 
3R (1972) | 
|---|
| Doubles | 
|---|
| Career record | 
227–165 | 
|---|
| Career titles | 
8 | 
|---|
| Team competitions | 
|---|
| Davis Cup | 
F (1976) | 
|---|
Patricio Cornejo (June 6, 1944) is a retired Chilean professional tennis player of the 1970s. He competed at the 1975 Davis Cup with Jaime Fillol and played the longest Davis Cup rubber in terms of games, eventually losing to Stan Smith/Erik Van Dillen of the (USA) 9–7, 39–37, 6–8, 1–6, 3–6 in the 1973 American Zone Final. The second set is the world record for the most number of games in a Davis Cup set.
Cornejo retired from tennis in 1983 but still continues to play socially and in charity tournaments.
Doubles titles (8)
 
| Outcome | 
No. | 
Year | 
Championship  | 
Surface | 
Partner | 
Opponents | 
Score | 
| Winner | 
 1. | 
 1969 | 
 Buenos Aires, Argentina | 
 Clay | 
   Jaime Fillol | 
   Roy Emerson     Frew McMillan | 
 W/O | 
| Winner | 
 2. | 
 1970 | 
 South Orange, U.S. | 
 Hard | 
   Jaime Fillol | 
   Andrés Gimeno     Rod Laver | 
 3–6, 7–6, 7–6 | 
| Runner-up | 
 1. | 
 1971 | 
 Bournemouth, England | 
 Clay | 
   Jaime Fillol | 
   Bill Bowrey     Owen Davidson | 
 6–8, 2–6, 6–3, 6–4, 3–6 | 
| Runner-up | 
 2. | 
 1971 | 
 Buenos Aires, Argentina | 
 Clay | 
    Jaime Fillol | 
   Željko Franulović     Ilie Năstase | 
 4–6, 4–6 | 
| Winner | 
 3. | 
 1972 | 
 Caracas, Venezuela | 
 Hard | 
   Jaime Fillol | 
   Jim McManus     Manuel Orantes | 
 6–4, 6–3, 7–6 | 
| Runner-up | 
 3. | 
 1972 | 
 Brussels, Belgium | 
 Clay | 
    Jaime Fillol | 
   Juan Gisbert     Manuel Orantes | 
 7–9, 3–6 | 
| Runner-up | 
 4. | 
 1972 | 
 French Open, Paris | 
 Clay | 
    Jaime Fillol | 
   Bob Hewitt     Frew McMillan | 
 3–6, 6–8, 6–3, 1–6 | 
| Runner-up | 
 5. | 
 1972 | 
 Indianapolis, U.S. | 
 Clay | 
    Jaime Fillol | 
   Bob Hewitt     Frew McMillan | 
 2–6, 3–6 | 
| Runner-up | 
 6. | 
 1973 | 
 Buenos Aires, Argentina | 
 Clay | 
   Iván Molina | 
   Ricardo Cano     Guillermo Vilas | 
 6–7, 3–6 | 
| Runner-up | 
 7. | 
 1974 | 
 Washington D.C., U.S. | 
 Clay | 
    Jaime Fillol | 
   Tom Gorman     Marty Riessen | 
 5–7, 1–6 | 
| Runner-up | 
 8. | 
 1974 | 
 U.S. Open, New York | 
 Grass | 
    Jaime Fillol | 
   Robert Lutz     Stan Smith | 
 3–6, 3–6 | 
| Runner-up | 
 9. | 
 1974 | 
 Buenos Aires, Argentina | 
 Clay | 
    Jaime Fillol | 
   Manuel Orantes     Guillermo Vilas | 
 4–6, 3–6 | 
| Winner | 
 4. | 
 1975 | 
 Charlotte, U.S. | 
 Clay | 
   Jaime Fillol | 
   Ismail El Shafei     Brian Fairlie | 
 6–3, 5–7, 6–4 | 
| Winner | 
 5. | 
 1976 | 
 Berlin, Germany | 
 Hard | 
   Antonio Muñoz | 
   Jürgen Fassbender     Hans-Jürgen Pohmann | 
 7–5, 6–1 | 
| Winner | 
 6. | 
 1976 | 
 Santiago, Chile | 
 Clay | 
   Hans Gildemeister | 
   Lito Álvarez     Belus Prajoux | 
 6–3, 7–6 | 
| Runner-up | 
 10. | 
 1977 | 
 Murcia, Spain | 
 Clay | 
   Hans Gildemeister | 
   Patrice Dominguez     François Jauffret | 
 5–7, 2–6 | 
| Winner | 
 7. | 
 1977 | 
 Indianapolis, U.S. | 
 Clay | 
   Jaime Fillol | 
   Dick Crealy     Cliff Letcher | 
 6–7, 6–4, 6–3 | 
| Winner | 
 8. | 
 1977 | 
 Santiago, Chile | 
 Clay | 
   Jaime Fillol | 
   Henry Bunis     Paul McNamee | 
 5–7, 6–1, 6–1 | 
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