During recording I did in fact, select the character and start the timer at the same time. There was 1.66 seconds of delay from when I started the timer and when the character was selected. This is due to my capture card being old and has the good old "trusted" Elgato HD60 Capture delay.

I was also late on stopping the timer as well. I went and found the frame (Which was when the timer was at 7:46.18) and subtracted the timer/capture delay which lead to my exact timing of the run.