Is there a section for single level speedruns?

IL speedruns can be found on The Sonic Center at http://www.soniccenter.org/rankings/sonic_colors_wii :)

Ok thank you! Just wondering if there was a way this community might get a IL speedrun section?

It's the same community, The Sonic Center was just the site the commmunity used before speedrun.com became a thing and there's no point in transferring everything over, unless a lot more people want it for whatever reason. Untill then, just use The Sonic Center.

i would also want an IL leaderboard