Tiger Woods
Win Tour Championship and win FedExCup

Kenny Perry

Scenario 1
Kenny Perry wins (3,300 points)
Steve Stricker, Jim Furyk, or Zach Johnson do not finish solo-second
Woods finishes in a three-way tie for third (or worse)

Scenario 2
Kenny Perry wins (3,300 points)
There is a three-way tie for sec0nd that does not include Tiger Woods or Steve Stricker
There is a five-way tie for second that does not include Tiger Woods

Phil Mickelson (curently T3)
Phil Mickelson wins (2,920 points)
Woods finishes tied for eighth or worse

Sean 0'Hair (currently T3)
Sean 0'Hair wins (3,700 points)
Tiger Woods finishes in a three-way tie for second or worse
Stricker finishes tied for second or worse

Steve Marino (currently T5)
Steve Marino wins (2,760 points)
Woods finishes tied for 19th or worse

Padraig Harrington (currently T5)
Padraig Harrington wins (3,900 points)
Tiger Woods finishes tied for second or worse

Steve Stricker (currently T7)

Scenario 1
Steve Stricker is guaranteed to win the FedExCup with a victory at Tour Championship (4,750 points)

Scenario 2
Steve Stricker finishes solo-second (3,750 points)
Any seed lower than No 6 wins (Sean 0'Hair is No. 7, Kenny Perry is No. 9)
Tiger Woods finishes third 0r worse

Scenario 3
Steve Stricker finishes in a two-way tie for second (3,500 points)
Any seed lower than No. 7 wins
Woods finishes fourth or worse

8th seed, Scott Verplank (currently T24), would tie Stricker if he wins Tour Champianship in this scenario

Ernie Els (currently T7)
Ernie Els wins (2,790 points)
Tiger Woods finishes 14th or worse

Hat tip to Court for alerting me to the scenarios today for all of the contenders to win the FedExCup.