You CANNOT Extrapolate 60m times for 100m

I wrote about Kim Collins running 6.48 last month.  He has since improved to 6.47 in the next few meets.  Getting better with age.  An inspiration.

I also discussed in that article how a THEORETICAL formula, based on the past world record holders, that a 1.53 X 60m time can be used to extrapolate potential.  Thus 6.53 seconds would be “the minimum” to break 10 seconds.  GBR’s Chijindu Ujah is a prime example: 9.96 for 100m and 6.53 for 60m.

In that article, I also had a list of the 40 top 60m times below 6.50 seconds.

However, Ireland’s Ian Graham quickly pointed this out to me.

Here are 12 guys who have broke 6.50 but never broke 10.00 seconds:

1. Richard Kilty (only world indoor medalist to never break 10.00 – but he only won world indoors last year)
2. Terrence Tremmell (Hurdler)
3. Colin Jackson (Hurdler)
4. Mark McKoy (Hurdler)
5. Dwight Phillips (Long Jumper)
6. Morne Nagel (RSA – 6.48 and 10.13)
7. Michael Green (JAM 6.49 and 10.02)
8. Marvin Bracy (USA 6.48 and 10.08)
9. Randell Evans (USA 6.49 and 10.18) American Footballer
10. Freddy Mayola (CUBA 6.49 and 10.10)
11. D’Angelo Cherry (USA 6.49 and 10.04)
12. Yunier Perez (CUBA 6.49 and 10.22) 6.49 in 2014 and 10.22 in 2009