Update: Taco Bell is doing this again in 2015, but it’s 5 runs instead of 6! Scroll down for more details.
For Arizona residents, participating Taco Bells will give you three free tacos when you purchase a large drink, if the Diamondbacks score at least 5 runs. (A win or loss doesn’t matter — well, for the tacos!) :) The deal is only good the day after the game from 4pm – 6pm. No coupon is necessary. Large drinks were $1.69 at my Taco Bell.
Here’s a link to their schedule. It also lists the scores of past games, so you can see if they scored 6 runs!