Tiger Woods PGA Tour 12: The Masters

After you make a tee shot, squeeze the Right Trigger before your golfer sets up for his next shot. This will prompt you to save a clip or your shot or post it to GamerNet. Select the "post" option to speed things up and choose to post it to the Long Drive section. You'll get the challenge setup screen where you set your "winning" criteria (tap the Y button for at least one option) and select the option to post it. You don't need to change the default name nor type up a description if you really don't want to.