Chris Lewis (tennis) Singles: 10 (3 titles – 7 runner-ups) Singles: 10 (3 titles – 7 runner-ups)

| Outcome | Date_ | Tournament | Surface | Opponent | Score |
|---|---|---|---|---|---|
| Runner-up | 12 December 1977 | Adelaide , Australia | Grass | Tim Gullikson | 6–3, 4–6, 6–3, 2–6, 4–6 |
| Winner | 30 July 1978 | Kitzbuhl , Austria | Clay | Vladimir Zednik | 6–1, 6–4, 6–0 |
| Runner-up | 23 March 1981 | Stuttgart Indoor , Germany | Hard (I) | Ivan Lendl | 3–6, 0–6, 7–6, 3–6 |
| Winner | 18 May 1981 | Munich , Germany | Clay | Christophe Roger-Vasselin | 4–6, 6–2, 2–6, 6–1, 6–1 |
| Runner-up | 17 July 1981 | Cincinnati, Ohio , United States | Hard | John McEnroe | 3–6, 4–6 |
| Runner-up | 5 October 1981 | Brisbane , Australia | Grass | Mark Edmondson | 6–7, 6–3, 4–6 |
| Runner-up | 14 December 1981 | Sydney Outdoor , Australia | Grass | Tim Wilkison | 4–6, 6–7, 3–6 |