It would be nice to drink Dead Guy and other stronger craft beers on the course but if you have more than one here in the TX heat you are asking for serious trouble physically, coordination goes down even if confidence goes up a little! So most people drink extremely sh*tty light beer made from corn or whatever it's made out of now. *ugh*
I don't drink if the round counts for something unless I'm playing a doubles tourney, one or two gets my putting relaxed and smooth! But usually I only drink during casual rounds after league and stuff like that, reflexes and coordination just go to crap quickly more often than not.
In the winter, Southern Star Buried Hatchet Stout is a must. Warms the belly and the spirit, and it's just so roasty and delicious!
In Spring, I rock the Modus Hoperandi by Ska Brewing, great beer in a can. Maybe Southern Star Pine Belt Pale Ale, lots of body for a "pale" but still drinkable and super tasty.
In Summer, we gotta roll with another TX craft beer in a can that's very easy to drink, like the new Hops & Grains Pale Dog. Or Southern Star Bombshell Blonde would be a good choice. Dale's Pale Ale by Oskar Blues is an obvious choice here, too.
Gotta give a shout-out to Austin's own Independence Brewing, who hosted a charity doubles tourney at MET Center recently (I'm wearing the T-Shirt right now). Their Stash IPA, when fresh, is just super dank and tasty as hell. It doesn't get great reviews on BeerAdvocate but I'm guessing that's because it was not super fresh. It definitely breaks down and loses it's hop profile quickly so it's gotta be FRESH! Also Convict Hill Oatmeal Stout is very good for an Austin beer. Their regular beers are not all that impressive for all the hopheads out there.