Divide the 100m time by 0.9144.
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.
speeds like mph are distance divided by time. So divide 100 meters by the dash time to get a speed. Then convert units to miles per hour. Or convert before you divide, meters to miles and dash time to hours.
A reliable way to convert a hand-held 100-yard time to an electronic 100-meter time is to multiply the hh-time by 1.103. Therefore, 10.2 in the 100-yard dash time equates to an 11.25 100-meter dash time. Also, to convert an electronic 100-yard dash time to an electronic 100-meter dash time, multiply the first time by 1.088. For example, a 10.20 electronic 100-yard time equates to an 11.10 electronic 100-meter dash time.
a good time in the 70 meter dash for an olympic medalist would be about 6.8 to 7.6
75 yards is 68.58m so to convert 8.3s for 75 yards to 70m: = 70/68.58 x 8.3 = 8.47s
just add .46 to the time if you are a boy and .56 if you are a girl.
An average time for a 14-year-old running the 50 meter dash is around 9 seconds. For a 100 meter dash, it would be about 13 seconds.