Lost Spongebob Squarepants Baseball Lecture "Animation"

I had thought about that episode, and I can assure you that is not what I saw. I remember seeing the house party episode on DVD a few times when I was younger, and what I saw at the baseball game was very different from any of the scenes in S3 E11.

I actually don't recall any of the lines of dialogue from the clip, only some of the visual details.

It was definitely around the time mentioned by soupnerd; I have merchandise from a RoughRiders game dated either 2005 or 2006 back at home.

Nope. Though you have reminded me, I'm pretty sure the animation style of the short I saw resembled that of either seasons 2, 3 or 4, not 1.

Season one was cell animated so that's why it looks a bit different, also season one of any show looks pretty different.

This is what I think is the case, as Tony said this in the email I sent over some times ago:
Also, prior to each game the RoughRiders would play a video stating the ballpark rules. This video was an assemblage of clips from movies and the version you saw may have included some Spongebob clips. (The script to this video is on the bottom of pg. 6 of this thread)

That is true as well. So that narrows our search from seasons 2-4 (no episodes after 2005 are candidates for the video because Tony stated that all the footage was from pre-YT era)

Are you thinking of any episodes in particular? I could take a look and see if I could find them online to begin recreating the video. Recreating the video hopefully will spark some memories and get us closer to finding the actual animation.

I'm thinking it could be similar to fanmade edits people make on YT based on pre-existing content (ex. AMVs and fanmade scenes made from pre-existing clips)

Maybe we should also start hunting for people who spoke this script to contact? Although IDK what job position that would be.