Here you can find various demo recordings of all sorts (speedruns, co-op, deathmatch) and in various sourceports or none at all. I have categorized a few of them for convenience: (please note that this page is under constant construction, so please forgive me if this page feels empty for now.)
This is where I will upload my personal best times for IWAD's and a few select PWAD's for fun. In terms of rules, I have decided to implement all of Compet-N rules for demos (DOOM2.EXE only) with just one exception of adding one extra category - No monsters. My reasoning behind this is that it definitely feels like a necessary category, even way back when Compet-N was still around and also it doesn't feel like a "mickey mouse" category like Collector, Stroller & UV-Tank. (and yes I know that the last one is not an official DSDA category but stay with me for a moment!) I'm not trying to discredit or disrespect the players who run these categories because these kinds of categories were inevitable (any competitive community would start to get at least a little bit bored after running the same defacto categories, don't you think?) but they remind me of all those pointless Guiness World Records, like: "Most watermelons chopped on the stomach in one minute" and the likes. Of course, that's just my opinion which you shouldn't take seriously to begin with. The runners of these categories are much more accomplished and talented than me anyway! :)