I had a time game like a gun duel time between two people like in red dead redemption 1 video game

I wanted to know what my duel time was like drawing a pistol out and pulling my trigger finger and tapping on the button twice as fast as I can and with the just min sec centi sec stop watch it was 19 centi sec, and I wanted to beat the time to prob win a gun duel and I tried and I won it, my time was 15centi sec the first prob important try for the first time this way 30min ago. What this game means is if win and I am the only person to do this and win then I am quicker at prob killing hostiles.