how many different countries are listed?
7
Outcome No. Date Championship Surface Opponent Score
Runner-up 1. 1973 Baltimore, U.S. Hard (i) Jimmy Connors 4–6, 5–7
Winner 1. 1974 Baltimore, U.S. Carpet Clark Graebner 6–2, 6–1
Runner-up 2. 1974 Birmingham, U.S. Carpet Jimmy Connors 5–7, 3–6
Winner 2. 1974 Paramus, U.S. Indoor Jürgen Fassbender 6–1, 6–3
Winner 3. 1974 Jackson, U.S. Carpet Karl Meiler 7–6, 7–5
Runner-up 3. 1975 Maui, U.S. Hard Jimmy Connors 1–6, 0–6
Runner-up 4. 1975 Hong Kong Hard Tom Gorman 3–6, 1–6, 1–6
Winner 4. 1977 Little Rock, U.S. Carpet Haroon Rahim 6–2, 6–4
Runner-up 5. 1977 San Jose, U.S. Hard Jiří Hřebec 6–3, 4–6, 5–7
Winner 5. 1977 Hampton, U.S. Carpet Stan Smith 4–6, 6–3, 6–2, 1–6, 6–3
Winner 6. 1977 Stockholm, Sweden Hard (i) Raymond Moore 6–2, 6–4
Winner 7. 1978 St. Louis WCT, U.S. Carpet Eddie Dibbs 7–6, 6–4
Runner-up 6. 1980 Surbiton, England Grass Brian Gottfried 3–6, 3–6
Runner-up 7. 1981 Los Angeles, U.S. Hard John McEnroe 7–6, 3–6, 3–6
Runner-up 8. 1981 Cologne, Germany Hard (i) Ivan Lendl 3–6, 3–6
Runner-up 9. 1981 Stockholm, Sweden Hard (i) Gene Mayer 4–6, 2–6
Winner 8. 1981 Bologna, Italy Carpet Ilie Năstase 7–5, 6–3
Runner-up 10. 1982 Stuttgart Outdoor, Germany Clay Ramesh Krishnan 7–5, 3–6, 3–6, 6–7
Winner 9. 1982 Cleveland, U.S. Hard Robert Van't Hof 7–5, 6–3
Winner 10. 1983 Gstaad, Switzerland Clay Tomáš Šmíd 6–0, 6–3, 6–2
csv/204-csv/520.tsv