Since I live in Europeland I used metric measurements instead of imperial. As such, 3ft = 1m, 6ft = 2m, 10ft = 3m, 12ft = 3,5m.
Measured from setting off to crossing the line with rear wheel, my fastest time was 47 seconds, keeping in mind the rounding rules. (according to time code (60fps) 47s 20frames)