Note: Since the corner and trigger glitches save a significant portion of time, runs using those two g...
Best time: low difficulty 1:06:56 by Maciej 'groobo' Maselewski on 12.08.07.
Area 51 speedrun (PC version), best time: 1:19:19 by Peter 'Kibumbi' Knutsson on 10.08.07, done in 19 segmen...
Best time, Private skill: 1:46:06 by Peter 'Kibumbi' Knutsson on 05.09.06, done in 31 segments.
Best time, Marine skill: 0:52:25 by Joseph 'Apathy' Wilcox on 16.10.05, done in 12 segments and appended to on...
Best time: 1:01:55 by Henk 'henkie196' Pietersen on 21.11.05 in 30 segments, appended to one file.
Best time, Insane-o difficulty: 0:49:46 by Aleš 'Ewil' Horák on 02.01.07, done in 17 segments appended to one ...
Half-Life speedrun, best time with scripts, hard mode: 0:31:00 by Blake 'Spider-Waffle' Piepho on 01.07.06, ...
Best time: 0:39:10 by Tassilo 'nudel' Kneib on 10.05.07, done in 20 segments.
Individual level runs on Serious skill, by Drew 'stx-Vile' DeVore. Total time = 1:03:31.