Neat. What's the ranking criteria? 

The ranking is purely based on how far you survive. That's objectively based on map, and then subjectively based on speed, completion, ect when there's a tie to be broken. I might solidify a system in the future, but anything that I cook up could probably be exploited. Let's just say for now Map# > Speed > Kills/Secrets. With Map#/Finishing trumping all. 

Surely kills are more important than speed? If one person dies immediately in a map and another plays it for a few minutes before dying, the "speedier" one is the one who dies first, right?

I'd say main maps finished > secret maps finished > kills > secrets > speed, but idk if you want to rank speed higher to discourage excessive caution. 

I'm curious about the "blind" qualification. Does this mean you are disqualified if you've played the level at any point in the past?

I haven't in this case so I'll give it a go either way, but I'm curious for future competitions since I've played so many Quake maps. 

My understanding is that it will disqualify you, yes. Nothing to stop you recording a demo and posting it anyway, just don't expect to get ranked. 

I'm willing to pass this onto the people, really. If you think your playthrough will be 'blind' enough, then you can participate. It should mean you have a hard time recalling specific elements of the map that would give you a substantial unfair advantage.

Maybe I could make a separate "Prepared" ranking like Doomworld does? I assume the Quake community would have a lot less players who don't know the maps, what do y'all think? 

It makes sense to consider it high up, but if you count only time taken for the completed maps. 

I have defo played this map before but cant remember much of it, probably sit this one out