Harrington shot a final-round 4-under 66 at Scioto Country Club in Ohio and finished at 12 under, four strokes ahead of Stewart Cink. The win tied Miller Barber's record of three U.S. Senior Open titles.

Cink began Sunday with a one-shot lead but closed with 71. George McNeill finished third at 6 under, Ian Poulter was fourth at 5 under, and Harrington collected his fourth senior major.