Hello! I have been practicing speedruns of quite a few games for a while and decided I should probably sign up here, as I plan to be doing my first real speedrun pretty soon. So yea, hey 
Welcome to the forums!
What games do you plan on running and are you going to stream your attempts?
Well the first run I plan on doing is of Black Mesa (Segmented, unscripted). I have also practiced a bit of Portal and Portal 2, so I have a pretty good idea of how source works. I have also practiced in some other games but not near as much as those 3.
And stream? Possibly, but I know I will be submitting the demo for certain.