Going forward, 100% will be timed with RTA.

There is a problem with this however, src only allows 1 overall default timer you can use for every category. Therefore, you must put your RTA time in the IGT field when you submit the time. If you wish to include your IGT, write it in the description for the run.

I don't like it has to be done this way but tell src to fix it https://www.speedrun.com/help

Reason for rule change, a new trick has been found which makes using IGT for 100% pointless. https://www.speedrun.com/post/m5xh1

Runs that have used IGT before will be changed to RTA with the IGT put in the description of the run.