2009 US Open – Men's singles final
The 2009 US Open Men's Singles final was the championship tennis match of the Men's Singles tournament at the 2009 US Open. In the final, Juan Martín del Potro defeated 5-time defending champion Roger Federer 3–6, 7–6(7–5), 4–6, 7–6(7–4), 6–2 after 4 hours and 6 minutes to win the match. It was the first US Open singles final that went to 5 sets since 1999, a span of 10 events. The 2009 US Open final was Del Potro's first win over Federer, having lost his 6 previous encounters against the Swiss.
| Roger Federer (1) vs. Juan Martín del Potro (6) | |||||||||||||||||||
| |||||||||||||||||||
| Date | September 14, 2009 | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tournament | US Open | ||||||||||||||||||
| Location | New York City, U.S. | ||||||||||||||||||
| Chair umpire | Jake Garner | ||||||||||||||||||
| Duration | 4 hours 6 minutes | ||||||||||||||||||
By winning the 2009 US Open, Del Potro became the first Argentinian man since Gastón Gaudio in 2004 to win a Grand Slam singles title, the first Argentinian man since Guillermo Vilas in 1977 to win a US Open singles title and the first Argentinian man to win a hard court Grand Slam singles title (Vilas won his US Open title on green clay).