Whitfield...was INFINITELY better (or should have been) than a combine 4.5-anything. Why he wasn’t, I have no idea.
Whitfield’s (DOB 8OCT93) progression below
2013 (19) - 10.28 +1.4 Gainesville (USA) 05 APR 2013
2012 (18) - 10.35 +1.2 Orlando, FL (USA) 26 MAY 2012
2011 (17) - 10.31 0.0 Orlando, FL (USA) 28 MAY 2011
2010 (16) - 10.58 -1.6 Winter Park (USA) 01 MAY 2010
Whitfield actually beat Tyreek Hill in high school.
https://www.flotrack.org/video/5837...it-whitfield-beats-tyreek-hill-in-high-school
But looking at Hill I see another good example of why it’s so difficult (impossible?) to extrapolate 40 yard times from 100m times -
much less a distance 4 TIMES LONGER.
At the 2012 IAAF World Junior Championships Tyreek Hill finished 4th with an identical time to 3rd place finisher Odean Skeen (JAM; Skeen ran 9.98 for Auburn last year); the winner of the race was Adam Gemili (GBR; ran 9.97 in 2015). Gemili finished .23 ahead of Skeen, who ran a PB, and Hill - but look at their relative positions at approximately 40 yds (35m; where the track changes colors ~2:50) and you’ll see that Skeen and Hill lead the race with Gemili (I’m sure a bit of parallax effect is skewing their actual positions).
A .23 win is domination; that’s two different categories of sprinter. If a .23 100m win doesn’t tell one a whole lot about two different sprinters at 40 yds, how could any distance LONGER than that? It is EXTREME(LY) possible that a 47-second High School sprinter is NO BETTER than a 4.7 40yd. ****, 4.8. He might also run a 4.3 - it would be impossible to know.