what is the number of titles in which the surface played on was carpet?
9
Outcome No. Date Championship Surface Partner Opponents in the final Score in the final
Winner 1. 1968 Wimbledon, London Grass John Newcombe Ken Rosewall\n Fred Stolle 3–6, 8–6, 5–7, 14–12, 6–3
Runner-up 1. 1968 Hamburg, Germany Clay John Newcombe Tom Okker\n Marty Riessen 4–6, 4–6, 5–7
Runner-up 2. 1968 Hobart, Australia Grass Fred Stolle Mal Anderson\n Roger Taylor 5–7, 3–6, 6–4, 6–1, 4–6
Runner-up 3. 1969 Philadelphia WCT, U.S. Carpet John Newcombe Tom Okker\n Marty Riessen 6–8, 4–6
Winner 2. 1969 French Open, Paris Clay John Newcombe Roy Emerson\n Rod Laver 4–6, 6–1, 3–6, 6–4, 6–4
Winner 3. 1969 Wimbledon, London Grass John Newcombe Tom Okker\n Marty Riessen 7–5, 11–9, 6–3
Winner 4. 1970 Wimbledon, London Grass John Newcombe Ken Rosewall\n Fred Stolle 10–8, 6–3, 6–1
Winner 5. 1970 Louisville, U.S. Hard John Newcombe Roy Emerson\n Rod Laver 8–6, 5–7, 6–4
Winner 6. 1971 Australian Open, Melbourne Grass John Newcombe Tom Okker\n Marty Riessen 6–2, 7–6
Winner 7. 1971 Miami WCT, U.S. Hard John Newcombe Roy Emerson\n Rod Laver 7–6, 7–6
Runner-up 4. 1971 Chicago WCT, U.S. Carpet John Newcombe Tom Okker\n Marty Riessen 6–7, 6–4, 6–7
Winner 8. 1971 Rome, Italy Clay John Newcombe Andrés Gimeno\n Roger Taylor 6–4, 6–4
Winner 9. 1971 Tehran WCT, Iran Clay John Newcombe Bob Carmichael\n Ray Ruffels 6–4, 6–7, 6–1
Runner-up 5. 1972 Richmond WCT, U.S. Carpet John Newcombe Tom Okker\n Marty Riessen 6–7, 6–7
Runner-up 6. 1972 Philadelphia WCT, U.S. Carpet John Newcombe Arthur Ashe\n Robert Lutz 3–6, 7–6, 3–6
Runner-up 7. 1972 Charlotte WCT, U.S. Clay John Newcombe Tom Okker\n Marty Riessen 4–6, 6–4, 6–7
Runner-up 8. 1972 Las Vegas WCT, U.S. Hard John Newcombe Roy Emerson\n Rod Laver DEF
Winner 10. 1972 St. Louis WCT, U.S. Carpet John Newcombe John Alexander\n Phil Dent 7–6, 6–2
Runner-up 9. 1972 Washington WCT, U.S. Clay John Newcombe Tom Okker\n Marty Riessen 6–3, 3–6, 2–6
Winner 11. 1972 Boston WCT, U.S. Hard John Newcombe Arthur Ashe\n Robert Lutz 6–3, 1–6, 7–6
Winner 12. 1974 Toronto WCT, Canada Carpet Raúl Ramírez Tom Okker\n Marty Riessen 6–3, 2–6, 6–4
Runner-up 10. 1974 Monte Carlo WCT, Monaco Clay Manuel Orantes John Alexander\n Phil Dent 6–7, 6–4, 6–7, 3–6
Winner 13. 1974 Wimbledon, London Grass John Newcombe Robert Lutz\n Stan Smith 8–6, 6–4, 6–4
Runner-up 11. 1974 Sydney Indoor, Australia Hard (i) John Newcombe Ross Case\n Geoff Masters 4–6, 4–6
Winner 14. 1976 Australian Open, Melbourne Grass John Newcombe Ross Case\n Geoff Masters 7–6, 6–4
Winner 15. 1976 Charlotte WCT, U.S. Carpet John Newcombe Vitas Gerulaitis\n Gene Mayer 6–3, 7–5
Winner 16. 1977 Australian Open, Melbourne Grass Arthur Ashe Charlie Pasarell\n Erik Van Dillen 6–4, 6–4
Runner-up 12. 1977 Richmond WCT, U.S. Carpet Ross Case Wojtek Fibak\n Tom Okker 4–6, 4–6
Runner-up 13. 1977 Toronto Indoor WCT, Canada Carpet Ross Case Wojtek Fibak\n Tom Okker 4–6, 1–6
Winner 17. 1977 Sydney Indoor, Australia Hard (i) John Newcombe Ross Case\n Geoff Masters 6–7, 6–3, 6–1
Winner 18. 1978 Sydney Indoor, Australia Hard (i) John Newcombe Mark Edmondson\n John Marks 6–4, 6–3
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