Thorpe successfully defended his title in the Charles Schwab Championship, birdieing the final four holes Sunday to win the Champion Tour's season-ending event for the third time in five years.

Thorpe, who edged Tom Jenkins by $4,079 for the 30th and last spot in the field, shot a 6-under 66 to finish at 20-under 268, three strokes ahead of Denis Watson and Fred Funk. It was Thorpe's 13th tour victory and first since the 2006 event.

"Coming in this week I knew my game was showing sparks," Thorpe said. "Normally at the end of the year my game starts to peak a little bit. I really didn't putt well until the last five or six holes this week but this is probably my best ball-striking week ever. I hit my irons unbelievably good."

Roberts, meanwhile, held on to win the season-long Charles Schwab Cup competition for a $1 million annuity, shooting a 66 to tie for 13th at 11 under.

Roberts, who lost the points title to Jay Haas in 2006 after missing a short putt on the final hole of the season-ending tournament, was in jeopardy of losing to Haas again after three sub-par rounds, but did just enough Sunday to win.