Thanks for doing the work PJ
Great post PJ. I told you the first 30m was blazing. 3.78! 6.32 at 60m 7.96 at 80m. The deceleration hits in 90 to 100 range where you could expect .84 to .85 based on the curve, for a time of 9.64 to 9.63!
I counted 41 steps on my slow mo video tool and he clearly starts looking around and slacking his arms at 7.6 on the on screen timer
The screen timer doesn’ty stay up so the 7.96 to 80 is about right but a .83 split doesn’t indicate an expected change but it sets up the massive drop from 90 to 100.
70m 7.14 (0.82)
80m 7.96 (0.82)
90m 8.79 (0.83)
100m 9.69 (0.90)
Maybe we should focus more on this part of the race. If he was achieving 0.82, 0.82, 0.83 while looking around and commencing with his celebrations, isn’t it reasonable to assume that these splits (0.82 and 0.83) were not his top end max.?
If that’s the case what do you think the splits would have been had he performed at his 100% capacity?
Yea he was definitely out of the sprint position from 80-100…unless the final the points of sprint position are now:
- supinate palms as if you are a bird trying to slow down
- look around left to right and realize your dominance
- do a few high steps Deion ‘Primetime’ Sanders style before crossing the line
Remember, he’s flying into the 80 to 90 zone from .82 speed- and he sure as hell was going then! Also remember the .82 was with 0 wind. Watch his arm pump from 30m on. Just like it takes a while for him to slow, it takes a bit for the effect to kick in, thus he moves down 87, 85, 82. Read speed trap. Sometimes it feels as though it takes forever for that “exter gear” to kick in so you must be patient and stay relaxed.
What was Gay’s 60m/100m splits in the semi’s. Does anyone know?
I was getting at: I think it may have been possible for him to run .82s through 80-100. I know this is not logical without wind, but neither was his performance.
Think of the timing of a valsalva manouver during the top end burst. It creates a crest, which rises and falls slightly. Towards the end of the valsalva, you have less air and can create a bit less force. I think if you were able to measure a bit more finely, you’d prob find that the middle .82 was slighty faster and the bookend .82s marginally slower. That said, if it were possible to "even it out’ Usain would come closer than anyone else without a big tailwind.
RT 0.165
10m 1.85
20m 2.87 (1.02)
30m 3.78 (0.91)
40m 4.65 (0.87)
50m 5.50 (0.85)
60m 6.32 (0.82)
70m 7.14 (0.82)
80m 7.96 (0.82)
90m 8.79 (0.83)
100m 9.69 (0.90)
My observation from the naked eye was true, Bolt was still accelerating between 50-60. This race data is a statistical anomaly.
I think with Bolt’s frame and proven speed endurance he could have maintained the .82. THis corresponds to a finish time of 9.60. PJs splits are only a good estimate - I strongly believe Bolt hit a .81. Take a .13 reaction and add a 1.9 tail wind and you have sub 9.5!!!
Bolt is in a unique situation where he is SO good he can set records in World and Olympic finals - 9.95 is just a jog for him
no its not. most elite sprinters are accelerating through 60m.
Those splits are making me ill.
Honestly, it’s just so insane. .07 dropoff for the last 10 meter segment and he still went 9.69. WHAT
Bolt’s undone laces…
So maybe if Bolt doesn’t showboat he runs the last 10m segment in 0.84 which would reasonably account for a final time of 9.63 !
OH, JUST SAW PAGE 2 OF THIS THREAD AND EVERBODY BEAT ME TO IT. :o
GREAT CONTRIBUTION YET AGAIN BY COACH PJ!
This is wat BBC had to say about his 200m:
Bolt strolls the second 100m of his semi-final like a man running for a bus but not wanting to make it look like he’s running too fast in case he misses it and looks stupid. If you know what I mean.
