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If I calculated it right, that would mean he would run a sub four second forty...
Darrell Green ran a 10.08 in 1980 and he was a 4.2 40 guy. As mgtirishfan said the slowest part of any sprint race is those first 10 yds/metres.
When Usain Bolt ran his 9.58 WR last year in Berlin his fastest 20m split was between 60-80m.
Reaction time to gun
So Bolt's first 40m which converts to 43.74 yards was ran in 4.64. Deduct the 0.146 reaction time (NFL combine starts the clock not by gun but by runner's first movement) and he actually ran the first 40m or 43.74 yards in 4.50. Running 43.74 yards in 4.50 secs converts to 40 yards in 4.115 secs. However you also have to factor the 0.9 m/s wind speed and fast track Bolt was running on which he would not have at the NFL combine.
Tyson *** went through 40m in 4.70. Deduct the reaction time of 0.144 (just two thousanths quicker than Bolt) and he went through 40m/43.74 yards in 4.56. This converts to a 4.17 40 yd dash. Chris Johnson's official 40 from the 2008 combine (without the fast track and 0.9 m/s wind) was 4.24.
Its also worth noting that Demps' 100m PB is 10.00 the same time ran by Dwain Chambers in the Bolt 9.58 race. Chambers went through 40m/43.74yds in 4.75 secs or 4.63 when the reaction time (0.122) is deducted. This 4.63 converts to an approx 4.23 secs over 40 yards.
10.11? I can do that in my sleep. Break 10 and I will be intrigued!
its april... Demps hasn't peaked yet, I can guarantee that. Get him out there at Nationals against some other beasts and I am 80% sure he'll run sub 10. Nobody PR's in april and declines the rest of the season. he'll be right by NCAA EAST's and NCAA Nationals.
CHRIS PETERSEN > STEVE SARKISIAN AND JIM MORA. CALL ME WHEN ONE MAKES A BCS BOWL.
Originally posted by slightlyabroncosfan
JBalla is mormon, so naturally he assumes that whenever you get one marriage done, another two or five are in the works.