http://www.youtube.com/watch?v=AGN3knX1kSQ
Another amazing performance. He is certainly fun to watch. Very impressive level of endurance over the final 100m. He obviously isn’t taking training that easy.
so tired he had to have another take his shoes off
lol, or it could be new perks!
What’s with the big security guys fingering their guns?
By the way, this run by Bolt is a sea level world best.
Although Bolt’s time of 30.97 is slower only than Michael Johnson’s 30.85, history’s only two-time men’s Olympic 400m individual champion ran his mark at Pretoria (alt 1333m) in the year 2000.
Bolt’s time is superior however to the 31.30sec which is the next best 300m mark ever recorded at or anywhere near sea level. That time was set by (“disgraced”) Olympic and World 400m champion LaShawn Merritt.
I came up with those splits (electric rounded up to the nearest tenth), looking forward to those by the organisation…
050m - 05.7
100m - 10.2 (4.5)
150m - 14.9 (4.7)
200m - 20.0 (5.1)
250m - 25.4 (5.4)
300m - 31.0 (5.6)
Obviously Bolt started out way too fast regarding to his current abilities, especially from a poor reaction time.
Michael Johnson, from the top of my head, did 10.68 at 100m and 20.11 at 200m, which means that he started too slow and lost too much energy with this flying 9.43 in the bend.
We are yet to see a sound pacing at 300m, and ultimately Bolt should be able to run slighlty under 30sec with the pace he used in Ostrava, but with higher speed reserve (like 9.5 and 19.0 current level).
disgraced for a lame supplement?
he looks to have a lot of head movement but I wonder if it is more the relaxation in his face that gives that appearance… thoughts? 
He always has a bit of wobble but this race his head looks like a mister bobble head. Damn freak still runs an amazing time.
Pierrejean - taking Bolt’s 300m time pace, can you translate that to a 400m time? Just a though… It would be interesting.
M. Johnson said after his 300m world record that he had used same model as for 400m- very relax straight and hard bend and hold it in home straight. I think if MJ had run 300m in 1996 or 1999 with model for 300m, he would have run close to 30s…
I am not PJ, but I think this way…
50m-5.7
100m-10.2 (4.5)
150m-14.9 (4.7)
200m-20.0 (5.1)
250m-25.4 (5.4)
300m-31.0 (5.6)
350m-37.3 (6.3)
400m-44.3 (7.0)
Thanks Pavel. Only a 44.3? I would have anticipated a faster time… For the last 100m, you really think he would decelerate that much?
when he ran his leg over 4x400m this season, his last 100m was 13.1. his first 300m was moderate and last straight for him was very tough… This time he ran much more harder for first 200m… but who knows… 
Same model but not specific pace.
I don’t think MJ ever tried to run the first 100m under 11sec, and the fastest first half he ever did was probably 20.8, and it was in Oslo’98 where was defeated in 44.58.
20.8 could be a better pace than the 21.1-21.3 he used when he was in his top shape, for a sub43 time target.
As for Bolt, if he runs the first 100m of the 400m in 10.2, he will finish the race walking because he can’t tolerate so much waste products in his body.
You are right… maybe 38 for 350 than walk…
Usain Bolt produced the second fastest performance ever at 300m while Asafa Powell clocked a world-leading 9.83 100m to highlight the 49th Golden Spike meeting (IAAF World Challenge) held on a rainy night in the Czech city of Ostrava. Bolt’s appearance was touted as an assault on the world best of 30.85 set by Michael Johnson at altitude in Pretoria a decade ago. Running on a soggy track, he came up just shy in his first attempt at the distance with 30.97, only the second mark under 31 sec and the fastest ever at sea level (previously 31.30 by LaShawn Merritt in 2009). “I probably went too hard in the first 200m,” said Bolt, who was hand timed at 9.7 for the opening straight 100m and 19.8 at 200m. The strong rains which postponed the track events for some 20 minutes didn’t hinder Powell, whose track record of 9.85 was set in cold and wet conditions in 2005. Powell powered home with a dominating 9.83 to take the world lead from Bolt who clocked 9.86 in his 100m opener the previous week in Daegu.