Question: There is a red headed kid that has several small lines in the movie, primarily in the beginning. He plays 1st base once or twice. Who is he, and why wasn't/isn't his role in the movie as big as all the other kids?
Chosen answer: That red headed kid is Regi Tower, played by now-screenwriter and director Scott Firestone. Several of the boys had very minor roles, so Regi wasn't really an exception. His character did not appear in either of the sequels to The Bad News Bears.
Answer: They mean the entire year, 1976, is America's birth "day," being the bicentennial of the Declaration of Independence. So the fight, taking place on January 1, is the "first sporting event on our two hundredth birthday."