In the end, Frankie is allowed to play on the boys basketball team. In the years since then, California's high school athletics governing body has banned girls from playing on a boys team in a sport if the school also has a girls team. (The most likely reason is, if a girl tries out for the boys team but does not make it, she can still play on the girls team, but if the does make the boys team, the boy she replaces cannot play on the girls team, which is considered "denying someone the opportunity to play because of gender", a Title IX violation. Note that girls can still play sports where there are no girls teams, like football and baseball, or if the school does not have a girls team (for example, few schools have girls wrestling teams).)
When Margaret Hamilton's character (Reuben's mother) first greets her son, she calls him "Ruby", which makes the other characters in the scene repeat the nickname in a questioning manner, then snicker.
When Margaret Hamilton played the Wicked Witch of the West in The Wizard of Oz, a big topic the character mentioned was the "ruby" slippers that the Dorothy character wore. Having Margaret Hamilton say "Ruby" adds another layer of comedy and intertextuality for those who know who she once played, and who caught the Reuben/Ruby/ruby slippers connection.