What is the main version everybody runs for speed runs and is there a specific one i have to run for my runs to qualify?

Hello ! The most used versions are PC and NGC in Japanese.

SourceNext Version ONLY Showing In-Game Time with SRT or with LiveSplit script is mandatory from 2016-01-01. Obtain them here http://www.speedrun.com/re2/resources

NOT ALLOWED: Muting the game audio. Turbo and Macro. Cutscene speedup mod.

Version: GameCube (DISC ONLY) Console: GameCube, Wii Emulator: Dolphin, Wii (bootloader)

NOT ALLOWED: PAL 50Hz is banned due to unpopularity and because the IGT counts differently compared with other regions. Muting the game audio & playing music Turbo and Macro.

I hope I have help u, bye !

was wondering which one i should download and use from the resources page between the. Bio2 SRT (Classic) Bio2 SRT (sorceenext 1.1) Bio2 SRT 1.2 my main intention is too speed run, havent done it for about 12 months and have since updated to a newer pc which should be able to record while i speed run ^^;

SRT 1.0 and 1.1 pertain to the version of the game you have installed. You would use 1.1 only if you have the 1.1 patch installed and 1.0 is without it. The 1.2 SRT is simply an updated one that has boss health added to it along with a new UI and supports both 1.0 and 1.1 versions of the game. Just grab either SRT 1.0 if you didn't update or SRT 1.2 if you're looking to have boss health on the UI.