>Remember when Xavier Carter ran a stunning 19.63 in Lausanne, the second-fastest mark of all time? Well, in three meets since then he hasn’t won. I think the long collegiate season finally caught up with him.
Anyway, when he ran that I referred to some research about altitude, wind, and lane selection affecting sprint times. I finally found the online corrector for lane/wind/altitude. It says the X-man’s 19.63 is worth 19.73 at sea level in still air and lane 4. Still impressive, but not as jaw-dropping.