This is an example video for the full Tutorial video.
1) Upload your trackday POV video to an editing software in one cut.
2)Split/cut the main clip every time your front wheel touches the finish line or any other clear horizontal line on the track. At a high speed section even in 60fps you might not touch the line so pick the frame where you are closest to the line for best measuring.
3)Each clip length now represents your exact lap time.
4)Stack your quickest lap clip on top of an average lap time and play at 50% speed, split screen or stacked with 50% opacity in order to understand when where and why you go faster.
5)Write down your tips. Go over them a day before the trackday and remind yourself during the warmup laps in the morning.