I'm gonna go on a limb here and say that if the game's already on sr.c, the beta speedrun should probably be added as another category/sub-category of said game (given that on paper it should be treated as just another version of the same game).

That being said, there's cases like Crash Bandicoot Prototype Version and A Hat in Time Beta Build, so I guess it would probably come down to a case-by-case policy.

@MrMonsh I know that for A Hat in Time, that leaderboard exists because people began speedrunning the game while it was in beta.

I would also expect betas to be misc. categories under the main leaderboard.