Rui Machado Singles: 26 (18–8) Singles: 26 (18–8)

| Outcome | Date_ | Tournament | Surface | Opponent | Score |
|---|---|---|---|---|---|
| Runner-up | August 11, 2003 | Spain F16, Denia | Clay | José Antonio Sánchez-de Luna | 6–3, 6–2 |
| Runner-up | December 6, 2004 | Spain F32, Gran Canaria | Clay | Daniel Muñoz-de la Nava | 5–7, 7–6 (9–7) , 7–6 (7–4) |
| Runner-up | November 14, 2005 | Spain F32, Gran Canaria | Clay | Ivo Klec | 6–3, 6–3 |
| Winner | November 27, 2005 | Spain F33, Gran Canaria | Clay | Ivo Klec | 2–6, 6–3, 6–3 |
| Runner-up | December 12, 2005 | Spain F34, Pontevedra | Hard | Gorka Fraile | 6–1, 6–7 (1–7) , 7–6 (7–3) |
| Runner-up | March 27, 2006 | Portugal F3, Faro | Hard | Frederico Gil | 7–6 (7–4) , 1–6, 6–4 |