Adam Scott’s last hole bogey has proved expensive as Zach Johnson claimed an impressive victory at the Tournament of Champions in Hawaii.

Johnson, the 2007 Masters champion, fired a bogey-free seven-under-par 66 to win by one stroke from fellow American Jordan Spieth (69) at 19-under 273 on the Plantation Course at Kapalua.

Australia’s world No.2 Scott started the final round four off the pace but surged within one shot of the lead with three birdies then an eagle on the par 5 15th.

However the Masters champion made bogey on the par 5 18th to finish with a 69 and slipped into a share of sixth place on 278.

Johnson confirmed his status as one of the hottest players in world golf as he claimed his 11th US PGA Tour title.

It was Johnson’s third win in his past six starts, and his eighth top-10 finish in his past 11 official US tour events dating back to July’s John Deere Classic.

Since his rookie year in 2004, only Tiger Woods, Phil Mickelson and Vijay Singh have won more.

Americans Kevin Streelman (67) and Webb Simpson (70) tied for third on 275, two shots ahead of fifth-placed Billy Horschel (66).