When Dwain Chambers won the Indoor Euro Championships 60 meters in 6.42 seconds (March 2009), he predicted that time extrapolated to a 9.70.
I felt based on previous world records, a conversion of 1.53 or 1.54 would give Dwain approximately 9.82 – 9.89 seconds for a 100 meters. (He ran a 10.00 season best in Berlin)
These tables or conversions assume a maximum velocity to 60 meters, followed by speed endurance maintenance for another 20-30 meters, and a deceleration anywhere from 10-15 meters.
One poster on T&FN forum suggested you can extrapolate a 100m using 2 x 60m time minus 3 sec, which to me just doesn’t add up.
The problem with any conversion of a 60 meter race is Super-Elite athletes today like Usain Bolt and Tyson Gay are accelerating to maximum velocity well past the 60 meter point.
So for those Super-Elite athletes, just take those tables and throw it away.
Unless, of course, you want to have indoor 70 meter races with extra large crash mats! Then we can talk 70 to 100 meter conversions.
If you take Usain Bolt’s 60 meter split from Berlin, multiply by 2 and subtract 3, to you get:
(6.29 x 2) – 3 = 9.58
So is this the new formula?