How do I view playtime for a single player that has used multiple names? I can't figure out how to do so and I need to check how many hours I have on a server for a mod application.

You would need to search for each name individually. There is no way to compare them side by side (unless you can enter a search term which includes them all). For instance, you could search on http://www.gametracker.com/server_info/8.2.120.16:27015/top_players/

Alright, thanks.