Unlock All Courses:
Enter the password 14COURSES to unlock all of the courses in the game. Tiger will say "Oh Yeah" if you did it properly.

Unlock All Golfers:
To unlock all golfers, enter ALLTW3 as a password. Tiger will say "Oh Yeah" if you did it right.

Unlock Individual Golfers:
To unlock the following golfers, enter the corresponding phrases as passwords at the Cheat Code screen:
Brad Faxon: XON
Cedric Andrews: IAM#1
Charles Howell III
Dominic Donatello: GODFATHER
Hamish: MCRUFF
Jim Furyk
Josey Scott: SUPERSTAR
Justin Leonard: JUSTINTIME
Kelly Newman: COWGIRL
Mark Calcavecchia: CALCULATE
Mark O'Meara: TB
Melvin Tanagawa: YOYOYO
Notah Begay III: NOTABLY
Solita Lopez: SOLITARY1
Steve Stricker: SS
Stewart Cink: SINK
Stuart Appleby: ORANGES
Super Tiger: SUNDAY
Takeharu Moto: 2TON
Ty Tryon: TYNO
Val Summers: VALENTINE
Vijay Singh: VJSING