was wondering if there could be a competition leaderboards for the races maybe add it is a misc category???

This would need some level of player demand to even be considered as a category, and as far as I know nobody is currently running these. They've been done in the past and are tracked over at The Sonic Center, like the rest of the ILs.

I'll put my vote in to include competition mode as I play it a decent amount. I'm on the side of a new leaderboard with respect to TSC due to defunct TSC videos, the advantage of redundancy, and that S3K comp levels aren't accounted for on TSC.