Sukeban no me ni namida? Rûru muyou no kakutou shintaisou kecchaku - S1-E13
Other mistake: Throughout the episode, the English translation greatly misses the joke when it comes to the nature of the fight; the referee keeps replying to Akane's protests "The tools she has are legal" or "she is using legal tools", while the real catch in the rules (and correct translation) would be "using tools is legal", which taken literally means that any tool, even the obviously lethal and unplanned ones, are fair to use, anything goes as long as it's a foreign object and not a bodypart.
Sukeban no me ni namida? Rûru muyou no kakutou shintaisou kecchaku - S1-E13
Other mistake: In the previous episode, Kuno was watching the match from the St. Hebereke stands, which would make sense since he's cheering for their champion, for the first time. In this episode, he's in the Furikan stands, with Ranma's supporters.