Thanks for these stats. BTW: Devonish ran 10.11 in Florida on the 11th of April. Assuming a similar race distribution, Bolts 9.91 is thus worth around 9.75. Regarding Bolt’s splits during his 200m WR, he ran the bend near the outside lane thus covering something like 102m in 9.96s (i.e. 100m in about 9.80). Running 9.80 in the bend arguable is much more energy consuming than 9.91 on a straight, wich may explain his slower 100-150m split in Beijing.