Doomed Speed Demos Archive
http://www.doomworld.com/sda/doom_sda.htm

Pwad:      COLOSEUM.WAD by Dean Ashley Svendsen 
Download link: ftp://3darchives.in-span.net/pub/idgames/levels/doom/a-c/coloseum.zip
Pwad name: COLOSSEUM
Maps:      Episode 3 Map 1 
Skill:     4
Category:  Max

Kills      100%
Items       62%
Secrets      0% and Time 1:28


Exe:       Doom.exe. The demo plays back with PRBOOM 2.2.4.
Date:      18 October 2003
Author:    Eugene Kapustin
Email:     egk@ukr.net
HP:        no DooM related page

Yes, nice colosseum. 
I'll glad to see a lmp under 1:00.