In Al's original history of the ballgame, he says that Doc lost a 1-run lead in the bottom of the ninth. In the game we see, Chucky pitches into what's called the bottom of the ninth. But the scoreboard at the field shows Doc and Chucky's team the Mustangs as the home team, who would be batting and not pitching in the bottom of innings (and wouldn't need to if they were ahead after the top of the ninth). Either Al - and the PA announcer at the ballpark - messed up, or the scoreboard is incorrect.
In the grounder to short as predicted by Al, the ball is hit to the hole between short and third, but the shortstop gloves and throws the ball as he moves toward first base.
Pro team baseball caps in 1961, or almost any year in history, if they display one letter on the cap, that letter represents the city or region the team is from. Here, the Galveston Mustangs were an "M" and the Biloxi Eagles an "E" on their caps.
Sam keeps referring to the club's manager as "Coach." This would be fine if it were an amateur team, but in pro baseball, the guy in charge of the team is not a coach, but the manager. He would almost always be called by his first name, or a nickname--like Sparky or Casey--or sometimes as "Skip" like the skipper of the club, but not "Coach."
Clearly heard over the ballpark's P.A. system is the voice of the P.A. announcer describing things as a radio announcer would. At the ballpark, the P.A. announcer tells who is coming up to bat, or coming into the game in the field, and does other things between innings, such as commercials. But he does not describe the action on the field.
In the baseball game, before the last Eagles batter comes to the plate the announcer says with 2 outs in the bottom of the ninth when in fact it is the top of the ninth as the Mustangs are the home team.