Who defeated Andy Roddick in the 2006 US Open men's singles final?

Roger Federer defeated Andy Roddick in the 2006 U.S. Open men's singles final, winning 6–2, 4–6, 7–5, 6–1.

The championship was Federer's third consecutive U.S. Open title. It was also his ninth Grand Slam singles crown and continued a remarkable period of dominance: he had already won Wimbledon and the Australian Open multiple times, while Roddick remained one of his leading rivals on hard courts.

Federer controlled the opening and closing sets with precise serving, early ball striking, and relentless pressure from the baseline. Roddick briefly recovered to take the second set, but Federer won the crucial third set before pulling away in the fourth.

This result is sometimes confused with Roddick's 2003 U.S. Open victory, his only major singles title. Federer also defeated Roddick in the 2005 and 2006 Wimbledon finals, making their rivalry especially significant in the mid-2000s.