A little late for the OP but...
Turf Club is not listed on every web site as participating in the DDP, but they certainly do. I read it on the DIS first!
I ate lunch there on our departure day (10/17) after we'd played at MK for 15 minutes longer than planned and missed the very last breakfast seating at 'Ohana (oops!).
We did not have ADRs, but the restaurant was practically empty and we were seated right away.
I had the calamari. Marinara sauce was a little too spicy, but the other sauce was excellent. I had the penne pasta dish (with seafood, I think?) for my entree, and it was not bad at all.
The kids had one "Dip It" and one "Kid's Choice" (chicken soup and mac 'n' cheese). Since "Dip It" had yogurt for "dessert" and the Kid's Choice allowed DD to order a make-your-own sundae, I sacrificed an adult dessert in order to get another make-your-own sundae to pass over to DS. THe waiter was very accomodating in this regard.
Our lunch total would have been about $45 had we not been on the DDP. I'd imagine dinner would be an even better value.