I retimed gerbungis run with a listed time of 13:07.660 just to make sure that we timed it the same way when i now got my faster run of 13:07.180 by watching the video, checking the first frame where the "start round" button was pressed which was at 9.270 seconds and the first frame where any semblence of the congratulations could be seen which was at 13:17.160. This gives a time of 13:07.890 as I see it.
Thoughts?
I used matt braddocks speedrun retimer tool, and found that it had a time of 13:07.893, and retimed accordingly. I really enjoyed looking at your run, and I also retimed it as well. I have been thinking about changing the rules so that once the last bloon is popped, or when you don't hear any bloons popping, then there you should stop, seeing "congratulations" to me is just an indicator for this. I hope you continue on speedrunning, though!
I retimed both runs using the same tool, the start times seem correct but ofcourse the ending times are harder to discern as it's a "fade in" of the "congratulations" message.
It looks like your run was a few frames faster, I guess uploading to youtube introduces some lag as my local recording gives a time of 13:07.180, honest mistake.
I think the easiest timing rule to implement for BTD1 and BTD2 would be ending timing at the first frame with no visible particles from tower shots, seems pretty measurable.