Grand Slam Baseball added 71 new photos to the album: Train-the-Trainer . All of Grand Slam Baseball's youth leagues are co-ed because we believe in the. Grand Slam America Tournaments. Click the link to see that tournament game information. Grand Slam America (Season Opener). Apr 1 - 2, Grand Slam. The Houston Astros and the makers of Minute Maid came together in and created Grand Slam for Youth Baseball, a program designed to bring the benefits. Grand Slam America Line Drive Classic Apr 29 - 30, Grand Slam America Curve Ball Challenge Wood Bat Only 11U to 19U No Bat Restrictions 8U to 10U Oct 21 - 22, TV Buy Gameday Audio Watch MLB. Apr 15 - 16, Join or Log Into Facebook. Golden Spikes 11U Navy Meridian, MS. Mud Dawgs Baseball Columbus, MS.