So I was looking through some old fourms on this site and I stumbled upon a juiced 30 team rom (https://forums.dee-nee.com/index.php?topic=23349.msg578575#msg578575) from @TecmoTurd. I dug a little deeper and thanks to a great text document by @jstout on tecmobowl.org (attached in the zip), I was able to create a 30 team patch for RBI Baseball to juice up the cpu (for people like me who don't have anyone to play with). Refer to the Zip for a doc containing Hex locations, max numbers, etc...
I will see if there is a hack for the original 10-team rom. Let me know if you have any questions! (I also attached a 2022 rom (not juiced) to test with from @Baron von Lector on tecmobowl.org)
-dwight
RBI 30 team juice.zip
For any 10-team rom purists here's a juice patch for you.
10tmRBI juice.zip