Félix Mantilla Botella Singles: 21 (10 titles, 11 runner-ups) Singles: 21 (10 titles, 11 runner-ups)

| Outcome | Date_ | Tournament | Surface | Opponent | Score |
|---|---|---|---|---|---|
| Winner | 24 September 2001 | Palermo | Clay | David Nalbandian | 7–6 (7–2) , 6–4 |
| Runner-up | 6 January 2002 | Doha | Hard | Younes El Aynaoui | 6–4, 2–6, 2–6 |
| Runner-up | 18 August 2002 | Indianapolis | Hard | Greg Rusedski | 7–6 (8–6) , 4–6, 4–6 |
| Winner | 5 May 2003 | Rome | Clay | Roger Federer | 7–5, 6–2, 7–6 (10–8) |