Tiger Woods feels players would have to finish their careers early if there
were more matchplay events on the tour.
This week's WGC-Accenture Match Play is one of only two matchplay events rather than 72-hole strokeplay tournaments.
Defending champion Woods, despite his liking for the event, admits the stress of the format can take its toll.
"If we had to play matchplay every week guys would retire by the age of 40 because of the emotional rollercoaster you go through in 18 holes," he said.
Woods added: "When you're playing strokeplay you couldn't care less what anyone else is doing until Sunday afternoon. You're going out and playing your own game.
"Here you're worried about what your opponent does. He hits the shot over there, I've got to counter that.
"
In matchplay the best player that week doesn't always win
"
Tiger Woods
"You're in the hole, out of the hole, in the hole, out of the hole; you have these amazing emotional rollercoasters.
"You have to play both the course and the person. You try and play the golf course but your opponent does put you in situations where you have to play differently than you would in strokeplay.
"In strokeplay the best player that week wins. In matchplay the best player that week doesn't always win. It's the best player that particular day.
"We've seen throughout the years of this tournament that matches are won at three or four over par, and other matches are won at seven or eight under.
"You just have to be better than your opponent that day."
If Woods can defend his title he will take his earnings from World Golf Championship events to a staggering $10m.
The world number one has won $9,043,333 since the inception of the WGC events in 1999, winning eight of the 15 events he has entered.
He is the only player to win all four of the WGC's annual events, completing the clean sweep at La Costa 12 months ago.
Woods opens his campaign against unheralded American John Rollins in Wednesday's first round.