Outcome Year Championship Surface Opponent Score
Runner-up 2002 Canada (Toronto) (1) Hard Argentina Guillermo Cañas 4–6, 5–7
Winner 2003 Montreal Hard Argentina David Nalbandian 6–1, 6–3
Winner 2003 Cincinnati Hard United States Mardy Fish 4–6, 7–6(7–3), 7–6(7–4)
Winner 2004 Miami Hard Argentina Guillermo Coria 6–7(2–7), 6–3, 6–1, ret.
Runner-up 2004 Toronto (2) Hard Switzerland Roger Federer 5–7, 3–6
Runner-up 2005 Cincinnati Hard Switzerland Roger Federer 3–6, 5–7
Winner 2006 Cincinnati (2) Hard Spain Juan Carlos Ferrero 6–3, 6–4
Runner-up 2010 Indian Wells Hard Croatia Ivan Ljubičić 6–7(3–7), 6–7(5–7)
Winner 2010 Miami (2) Hard Czech Republic Tomáš Berdych 7–5, 6–4