Plot hole: Sidney's friends at the beginning act like if he made his fifth shot, he beats Billy. If Sidney had made the fifth shot, he would have merely tied Billy and they would've either gone to a playoff or just settled for a tie. Billy made all 5 shots and Sidney was shooting his fifth,so Billy couldn't lose, only tie.
Plot hole: After District 5 become the Ducks, they have a bunch of fans attending their games from there on out. Problem is, they have fans that show up out of nowhere and also said fans have team merchandise already (sweatshirts, hats, flags, etc). It's also rare for pee-wee hockey teams to even have team merchandise unless they are a long-running franchise.
Plot hole: Just after Snyder escapes the FBI sting, he is yelling at Brown about the FBI cop being Sam Douglas. If Snyder knew the guy standing outside the car is his former partner's son-in-law, why did he continue with the business transaction as though he had never before seen and/or met Sam Douglas?