Four-time champion Tiger Woods hits his tee shot on the second hole during a practice round in preparation for the Masters at the Augusta National Golf Club on Tuesday. Phil Noble / Reuters

Tiger Woods, favored to win this week's 77th Masters and take his first major title since 2008, says he would have won a couple more Masters crowns the past few years had he putted better.

World No 1 Woods, a 14-time major champion chasing the all-time record of 18 major titles won by Jack Nicklaus, has not won the Masters since taking his fourth in 2005 and has not won any major since the 2008 US Open.

But Woods has won three times this year, his 77 career titles only five shy of Sam Snead's all-time record, and has displayed clutch putting skill in triumphs at Torrey Pines and last month at Doral and Bay Hill.

"I feel comfortable with every aspect of my game," Woods said. "I feel that I've improved and I've got more consistent and I think the wins show that."

Except for last year when he shared 40th, Woods has been a contender at Augusta National since he last won a green jacket, finishing sharing third in 2006, second in 2007 and 2008, sharing sixth in 2009 and sharing fourth in 2010 and 2011 when his infamous sex scandal and injuries hampered his bid.