Hey, I'm new to speed running, and I wanted to know if I could use a PC emulator to make a legit run time?

Hey! Check out these relevant posts on game emulation.

https://www.speedrun.com/smw/thread/f7cr2#ch3Run_on_permitted_platforms https://www.speedrun.com/smw/thread/8w7yc

You can in fact use an emulator on PC to make a legit run. As long as you don't use any of the functions that give you an unfair advantage (i.e. rewind, save+loading savestates mid-game, slowdown, etc.), you should be fine. It would also be a good idea to record the gameplay with audio.

Here is a Valid Emulators thread: https://www.speedrun.com/smw/thread/8w7yc