After a lot of discussion in the discord, we have decided to add IGT as an optional timing method for runs. There is a new autosplitter that you can find on the discord that tracks IGT, but you can only use it if you're playing on PC.
You can also calculate the IGT of a run by checking your play time in your profile menu before and after a run. If you don't use the autosplitter, but you do want to track your IGT, then you need to show the profile menu in your video for the mods to verify the time.
If you don't track your IGT, you can fill that field with your RTA time.
If you do track your IGT, be sure to submit the RTA time for your run as well. RTA is mandatory.
If you have any questions or need clarification, feel free to ask here or in the discord.