11.72 100 meter time to 40 yard dash
12.5 seconds in the 100 yard dash would convert to 13.67 seconds in the 100 meter dash.
To convert a hand-timed (1/10 of a second) 100-yard time to and auto-timed (1/100 of a second) 100-meter time, multiply the hand-time by 1.082. To convert an auto-timed 100y to an auto-timed 100m time, use 1.11.
If you run a 12.3-second 100-meter, your approximate time for the 40-yard dash is 4.5 seconds.
To convert yards to meters, multiply by 0.9144.
12.7 for 100 meters.
Divide the 100m time by 0.9144.
100 meter dash
11.99 seconds because 100 yard dash is 91 meters. 100 meters/91 meters = 1.09 Then do 11 seconds x 1.09 = 11.99 seconds. If you round it, you basically be getting a 12 second 100 meter dash.
A 10.1-second 100 yard dash converts to an 11.045-second time in the 100 meters.