So one of the participants in a run I did recently signed up and made an account, but this was after we already had a run submitted and verified. Is it as simple as changing the name field to be their new username and waiting for the run to be re-verified for their account to be properly tagged? I ask because the only difference is the first letter of the username is capitalized and didn't know if the leaderboard hasn't retroactively tagged the other runner because of that first letter.

In case anyone needs specifics, I'm changing "Graywolf09" to "graywolf09" on the following run:
https://www.speedrun.com/phasmophobia_category_extensions/run/zgpo1rnz

Thanks a bunch in advance.

It you change it, then it should work
Also you could message one of the moderators of the game to update it for you so your run doesn't have to be reverified