Tim Mayotte Singles 33 (12-11) Singles 33 (12-11)

| Outcome | Date_ | Championship | Surface | Opponent_in_the_final | Score_in_the_final |
|---|---|---|---|---|---|
| Runner-up | September 26, 1988 | Seoul Olympics , South Korea | Hard | Miloslav Mečíř | 6–3, 2–6, 4–6, 2–6 |
| Winner | October 10, 1988 | Brisbane , Australia | Hard (i) | Marty Davis | 6–4, 6–4 |
| Winner | October 24, 1988 | Frankfurt , Germany | Carpet | Leonardo Lavalle | 4–6, 6–4, 6–3 |
| Runner-up | February 29, 1989 | Philadelphia , U.S. | Carpet | Boris Becker | 6–7 (4–7) , 1–6, 3–6 |
| Winner | July 31, 1989 | Washington D.C. , U.S. | Hard | Brad Gilbert | 3–6, 6–4, 7–5 |
| Runner-up | February 12, 1990 | Milan , Italy | Carpet | Ivan Lendl | 3–6, 2–6 |
| Runner-up | February 19, 1990 | Toronto Indoor , Canada | Carpet | Ivan Lendl | 3–6, 0–6 |
| Runner-up | November 12, 1990 | Moscow , Russia | Carpet | Andrei Cherkasov | 2–6, 1–6 |