If there's a playoff needed any two or more golfers, it will be on the 18th hole, with everyone playing the hole over and over again until the tie is settled. Dye's Valley 18th is a par 4 with water down the left side. It's playing 414 yards this week and ranks as the seventh most-difficult hole on the golf course.

Here's a look at how to watch the action from the Grant Thornton Invitational this week from Tiburon Golf Club.