How to unlock Golfers:
Beat the following golfers in Tiger Challenge to unlock each of them

Justin Leonard
Solita Lopez
Colin Montgomery
Kellie Newman
Jesper Parnevik
Vijay Singh
Moa "Big Mo" Ta'a Vatu
Melvin "Yosh" Tanigawa
Erika "Ice" von Severin
Super Tiger Woods
Cedric "Ace" Andrews
Stuart Appleby
Notah Begay III
Brad Faxon
Jim Furyk
Lee Janzen

Get trophy Balls:
Finish these challenges to get trophy balls

Long Distance Drive- Make a 350+ yard drive Get 00
Long Putt- Sink a 55+ Foot Punt Get 00
Fairway Challenge- Hit all fairways in a round Get 00
GIR Challenge- Hit all greens in regulation Get 00
Pin Seeker- Hit the Pin Get 00
Aces Wild- Record a hole in one Get 000
One Time- Reach a par 5 green in one Get 00
Low Round- Shoot under 60 in a round Get 000
Birdie Streak- Record 6 birdies in a row Get 000
Birdie Buster- Record 12+ birdies in a row Get 000
Back-to-Back- Back-to-back eagles Get 000
Top of the Tournaments- 1st Place in all tournaments Get 0000
Eagle Extravaganza- Record 4 eagles in a round Get 000
Scenario Challenge- Complete all scenarios Get 0000
Tiger Challenge Completion- Complete The Tiger Challenge Get 0000
Eagle Hunt- Eagle every par 5 in the game Get 00000

Faster Play:
With a CPU opponent after the swing press X to speed up play

Slower Play:
With a CPU opponent after the swing press Triangle to speed up play

Get New Tiger Dream Course Holes:
Finish levels of the Tiger Challenge to unlock new holes

Get New Courses:
Make the following amounts of cash with your golfer

Princeville Course - ,000
Black Rock Cove Course - 0,000
Royal Birkdale Course - 0,000

Extra Spin:
After you hit the ball, slow down the gameplay by holding Triangle and then use your direction and L2 to spin. {This also helps when you are going for the green and you want a better view of the pin.}