There's also some kind of "thrift" round of golf that begins play at 3 p.m. but since I don't golf, I'm not sure how long it takes to complete the round. That's noted on the disneygolf.com site too, toward the bottom.
You might also want to check the discounted rate available with an annual pass, if your stay is long enough to justify buying one and you're only interested in the occasional round of golf.