i cant seem to find any thing about this

yes you can, but it will make your character a little bit slower than using shift to run This is why the biggest part of the runners don't use it and it is not mentioned in the rules

edit : that's false, check tendog's response for more details

Thanks for the feedback!

The only time loss from using Auto Run is from the time spent turning it on. You won't move any slower/faster than if you held shift/x during the entire run.

Actually I double checked, Auto Run might actually save a very slight amount of time during the run?? Auto Run apparently doesn't work the same as just running, in any case

I mean I literally compared it 1 to 1 in libtas but yeah

Yes, I use autorun and my speedrun got verified (also it’s a feature not bug so yeah)