Well, alright, it's second place, next to an uncensored print of the Fist of the North Star movie suddenly appearing out of nowhere. But every time I recall this oddity, I wish I had it again, and I look for it, and there's nothing.
Yes, it's awful. The fansubbers at Anime-Otakus, who had translated the entire TV series, saw fit to dub an episode, despite lacking things like actors. What resulted was 25 minutes of a fansubber reading his own script emotionlessly for every single guy in the show. There was a girl to cover the two female characters, and did I forget to mention that the fansubber also dubs the opening and ending theme songs?
The great thing about this dub is how strictly it adheres to the rules for fan subtitles, utterly ignoring how things actually sound in English. There is no rewriting of the fansub script, highlighting the fact that the average fansub script sounds nothing like a conversation between human beings. Segments of dialogue are even timed to when one would imagine the subtitles appear on screen. The coup de grace is that the hero's catchphrase, "mada mada da ne"-- which is a "you've got a long way to go" kind of statement-- is left untranslated. It is the absolute height of hilarity to hear this line spoken in English in the middle of conversation. I can't explain it. It's too wonderful.
It's a pretty amazing watch for a bad anime enthusiast like me, and I can't find it anywhere. I just spent the afternoon digging through my archives from around the time it came out, and there's nothing. The only things that come up on Google are little posts like this: the fansubber appears defunct, and I really doubt they were proud of this after the kind of feedback they must have received. Note the comment on that post: apparently there were three episodes of this.
So, in conclusion, I'm putting out a formal call to the entire internet: if you have any or all of Prince of Tennis fandub by Anime-Otakus, kindly hook me up. I miss it so, and the internet will be a better place with it freely available on, say, Youtube or some such.