Day 6 of the Olympics--Evening session...

9:35 am--A very interesting night of track & field at the Bird's Nest, with a world record in the 200 by Usain Bolt (video courtesy ESPN), winning his second Olympic gold medal and his second world record of the meet, and a very bizarre ending, with the disqualification of Martina and Spearmon.

That ends the live blog of day six of Olympic track & field. See you tomorrow morning (6 pm in Seattle).

9:20 am--Word from Beijing is that Churanday Martina has been disqualified for a lane violation as well...so, it's Bolt, then Shawn Crawford, then Walter Dix. Crawford 19.96, Dix, 19.98. nbcolympics.com confirms this on its live scoring site as well.

Here is the IAAF recap of the men's 200, updated with the announcement of the disqualification.

8:55 am--Brad Walker no heights! Ouch...Parker writes, "Hartwig has a third miss, so he'll join Walker, Lobinger, Averbukh, and Mesnil as part of the massacre of former medalists in tonight's preliminary".

8:40 am--A second miss for Brad Walker in the pole vault.

8:20 am--There is apparently another protest in the 200. Apparently it involves Martina, and a claim he also stepped on the line in the curve...stay tuned.

8:00 am--Brad Walker's opened with a miss at 5.65m/18-6.5.

Meanwhile, there's a protest by the US contingent on Spearmon's apparent DQ.

7:55 am--In the men's pole vault, Brad Walker and Steve Hooker of Australia still have not jumped. The bar's at 5.55m/18-2.5.

7:40 am--In the scramble on the Bolt superlatives, there's still one more event on the track, the 400 hurdles.

Parker writes, "Melaine Walker in 52.64 for yet another Jamaican gold. Sheena Tosta silver in 53.70. Danvers from Great Britain for Bronze, a PB 53.84." Walker's time is a new Olympic record.

Tiffany Ross-Williams, who had the second fastest time in the world this year, was dead last in 57.55.

7:20 am--19.31 WR!

It's been adjusted to 19.30 into a headwind, as Bolt actually runs through, with no showboating! Wind gauge shows a 0.9m/s HEADWIND!

The crowd is serenading "Happy Birthday" to Usain Bolt; meanwhile, Wallace Spearmon's (15.95) been dq'd for a lane violation, after finishing third. So right now, it's Bolt-Churanday Martina (19.82)-Shawn Crawford (19.96).

David Moorcroft on CBC says it's the first time a runner's won the 100/200 double at the Olympics winning in WR time. This is the first time the 100/200 double's been accomplished since Carl Lewis turned the trick in 1984!

7:18 am--From the inside (2-9), this will be Kim Collins (2003 100m World Champion), Christian Malcolm, Shawn Crawford, Bolt, Brian Dzingai, Churandy Martina, Walter Dix, and Wallace Spearmon, Jr.

Spearmon's put himself in this spot, with his shoddy running on the turns in the rounds. He's coached by his father, Wallace, Sr.

7:07 am--Allyson Felix & Marshevet Hooker go 1-2, with Felix looking very easy and relaxed, cruising in 22.33, and Hooker on her outside running blind in lane 9 at 22.50.

It's deja vu all over again--like the 100, three Americans and three Jamaicans in the final tomorrow night.

Speaking of Jamaicans, it's Usain "Lightning" Bolt time coming up! 19.32 is the world record set by Michael Johnson in the Atlanta Olympics. Will we see something special?

Donovan Bailey is pointing out that Bolt's running his eighth race of these Olympics. Bailey, the 1996 Olympic champ at 100, thinks Bolt will run around 19.5. "The only person who can beat Usain is Usain", Bailey states on CBC.

Bar is at 18-2.5 or 5.55 meters in the vault.

6:55 am--"It's Campbell-Brown in 22.19, with Lee close on her inside. On the outside, though, Stewart gets second in 22.29. Lee also 22.29 in third. Ferguson-McKenzie takes the fourth automatic spot", writes Parker Morse on the IAAF site.

6:50 am--Next on the track is the first of two semis in the women's 200. Muna Lee is in heat 1, with fellow Americans Allyson Felix & Marshevet Hooker in the other heat. Top four advance to the finals.

6:42 am--David Oliver wins heat 2 in 13.31. Shi Dongpeng of China is out, finishing fifth in 13.42, disappointing the 90000 Chinese fans in the Bird's Nest

No changes in the pole vault...still at 5.45m.

6:32 am--Dayron Robles of Cuba, the world record holder runs 13.12, with David "King of" Payne from Team USA second in a season best 13.21. Robles is the hurdles' equivalent of Usain Bolt. Robles made this heat look so easy.

Parker informs us, "At 5.45m (17-10.5), there are twelve clearances in the pole vault. Thirteen: Burgess of Australia just got over as well.

6:25 am--Next on the track are semis in the 110 hurdles, then semis in the women's 200. Top 4 advance in the hurdles to the finals Thursday.

6:12 am--Lagat wins the third heat in 13:39.70, running a last lap of 55.1, and 1:52.3 over the last 800m, according to our man in Beijing, Parker Morse of the IAAF.

Nothing of significance going on in the pole vault qualifying...polevaultpower.com has jump-by-jump coverage going on now here...there are 38 vaulters entered, so it could be a while. The nbcolympics.com live scoring says that Brad Walker will open at 5.65m/18-6.5, about the same height he opened at in Eugene (actually, he jumped 18-4.5/5.60m).

5:55 am--Things are getting hot & heavy, with the pole vault qualifying going on. Bernard Lagat will line up shortly in the third heat of the 5000, a heat that has 10000 winner Kenenisa Bekele, and Australia's Craig Mottram.

While the Bahamian TV feed has been choppy at best, we can tell you that Lagat's comfortably tucked in around sixth place in the main pack, with Bekele & Mottram a few steps behind after 2000m, crossed in around 5:32.

The pole vault qualifying has begun at the north end of the stadium. It will be 5.75m/18-10.25 for the automatic qualifying height, or the 12 best clearances, and the bars are at 5.30m/17-4.5 now.

5:45 am--Aksana Miankova of Belarus wins the hammer in an Olympic record 76.34m/250-5.

5:30 am--Matt Tegenkamp, who will be moving to Portland after the Olympics, wins the first heat of the 5000! The results are now up, and Teg finishes in 13:37.36. Pretty much stayed out of trouble for the race, staying in contact with the lead group, then getting in the mix in the last 300 meters.

5:20 am--Getting underway with the first of three heats in the men's 5000. Top 4 plus 3 advance to the finals on Saturday. Bernard Lagat's in heat 3.

5:00 am--Only Nick Symmonds moves on to the semifinals.

4:55 am--Andrew Wheating, the sophomore from the University of Oregon, was fourth in his heat in 1:47.05 in a blanket finish...gonna be dicey for him to move on. A quick eyeballing of the previous heats has him in eighth or ninth, with one heat to go.

4:43 am--Christian Smith was fourth in his heat, running 1:48.20, splitting 55 seconds thru 400. Don't think he's moving on.

4:25 am--Nick Symmonds wins heat 4 in 1:46.01, splitting 53.1, & 1:19.6, looking comfortable doing so. Thought he ran smart, staying up front and out of trouble.

4:00 am--Ni hao! Eight heats of the men's 800 starts off day 6 of track & field at the Bird's Nest, with only the top 2 & the eight fastest advancing on time. Guys are gonna have to move!

Nick Symmonds, Christian Smith & Andrew Wheating are running in heats 4, 6 & 7. Also happening in the first hour is the final in the women's hammer throw.

World champions Bernard Lagat & Brad Walker are in action tonight, as qualifying gets underway in the men's 5000 and pole vault, which starts in about an hour.

Two other finals are on the docket tonight, and that's in the men's 200, and the women's 400 hurdles. Will Usain Bolt be the first since Carl Lewis to take the 100-200 double? The odds are in his favor, as the 200 is his better event!

Certainly, the focus of the coverage tonight will be on Walker and Lagat, so sit back and enjoy the coverage!