American sprinter Tyson Gay added the 200m title to his 100m crown in the final event of day six at the World Championships in Osaka.
Britain's Mo Farah made the final of the men's 5,000m but Andy Turner just missed out in the 110m hurdles.
Michael Rimmer also reached the men's 800m semi-finals but Steve Lewis crashed out of the pole vault.
Australian Jana Rawlinson took gold in the women's 400m hurdles with Britain's Tasha Danvers-Smith back in eighth.
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1429: That wraps up the evening session. But there's more on Friday, beginning with the women's 20km walk.
1425: It's double gold for Gay as he storms home in a championship record of 19.76 seconds. Jamaican Usain Bolt is second and American Wallace Spearmon is third.
1423: A big groan goes round the stadium as there is a false start.
1421: We're all set for the climax of the evening - the men's 200m final. Tyson Gay looks calm and focused.
1420: Irving Saladino of Panama, who had led for much of the contest, responds to Howe's jump with a leap of 8.57 to snatch gold. His celebrations are more low-key than Howe's but there's a lot of chest-beating going on. To his credit, Howe is able to applaud his rival.
1418: The drama in the long jump continues as Andrew Howe jumps an Italian record of 8.47 to snatch the lead. He promptly begins wild celebrations, as does his mum.
1415: It's an eventul final round in the long jump. The previously unfancied Olexiy Lukashevych of the Ukraine jumps 8.25 to edge into the medals.
1413: Sanya Richards wins the second semi in the women's 200m. Also through are Aleen Bailey, Susanthika Jayasinghe and Lashauntea Moore. Not one European has made the final.
1408: In the long jump, American-born Andrew Howe, who represents Italy, sneaks back into the bronze medal position by 1cm, which pleases his very vocal mum, who is yelling excitedly in the crowd.
1405: Defending champion Allyson Felix of the United States looks in awesome form as she flows effortlessly through her 200m semi-final. Second place goes to 100m champion Veronica Campbell and Torri Edwards and Cydonie Mothersill take the other two qualifying spots.
1358: There's a light drizzle coming down as the women prepare for the 200m semi-finals, which will be followed by the highlight of the schedule, the men's 200m final. That promises to be a cracking race yet the stadium is only half full. Shame.
1355: "It's frustrating. Three of the guys I've beaten this year have made that final." Andy Turner on just missing out in the 110m hurdles.
1352: Turner is third in his heat behind Robles and Xiang and waits anxiously to see if he's nabbed one of the two fastest loser spots. Bad news - he hasn't. He misses out by five-hundredths of a second.
1349: Andy Turner has world record-holder Liu Xiang on one side in the final semi of the 110m hurdles and rising star Dayron Robles on the other. The tension mounts as there's a false start. One wrong move by any athlete now and it's disqualification.
1340: The long jump goes into its second stage with the top eight going through to the next three rounds. Carl Lewis is among the crowd. It's 16 years to the day that he and Mike Powell fought out an epic battle for gold with Powell eventually breaking Bob Beamon's legendary long jump record.
1338: "Men's 200m: I think it will be 1. Usain Bolt 2. Wallace Spearmon 3. Tyson Gay."
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1331: The action continues apace - now we're onto the men's 110m hurdles. Britain's Andrew Turner goes in the third and final semi.
1329: Saladino now leads the long jump in his own right.
1324: "My aim was to make the final and see what happens, Now I've made the final, I'm going to see what happens," Mo Farah reveals to BBC Sport.
1318: The biggest cheer of the evening comes as Takayuki Matsumiya of Japan hits the front of the field coming into the penultimate lap. Farah has to settle for sixth after leaving himself too much to do in the final 600m. His time is still quick enough to reach the final, though.
1314: Farah has dropped down to the middle of the pack but looks pretty comfortable. It's not quite as hot and sticky as it has been in Osaka.
1306: Farah, who is wearing one black sock and shoe and one white sock and shoe, takes over at the front of the pack in the 5,000m.
1306: They're off in the second heat of the 5000m. American Dwight Phillips and Irving Saladino of Panama are the joint-leaders in the early stages of the men's long jump.
1300: Ethiopia's Tariku Bekele, brother of the legendary Kenenisa, wins the first heat of the 5,000m.
1256: Erik Sjoqvist is swallowed up by the pack with a couple of laps left in the 5,000m. The Swede had been about 100m ahead at one stage but pays the price for going off too fast.
1246: The first heat of the men's 5000m is under way. Ireland's Alistair Cragg is in action with Britain's Mo Farah going in the second of the two heats. The first five in each go through along with the five fastest losers.
1242: Ireland's Eileen O'Keefe is sixth in the women's hammer. The 26-year-old took a year off her day job as a nurse to see how good she could get. Pretty good I'd say, if reaching the World Championships final is anything to go by. A huge last-round effort by Cuba's Yipsi Moreno puts her just 2cm behind Germany's Betty Heidler, who wins gold.
1234: "I wanted to be higher up but I think I've put together quite a strong series of runs here," Danvers-Smith tells BBC Sport once she's got her breath back.
1228: They're off first time in the women's 400m hurdles. Rawlinson holds off defending champion Pechenkina to take gold - surely that counts as half a medal for Britain? Danvers-Smith is never really in contention for the medals and finishes last in 54.94. Rawlinson's time is a season's best of 53.31.
1220: The runners are out on the track for the women's 400m hurdles final. Danvers-Smith is in lane two. The gold looks set to be decided by Australian Jana Rawlinson (married to Britain's Chris) and Russian Yuliya Pechenkina.
1210: "Mike Rimmer employs some brilliant tactics to go through convincingly, if only he had Andy Baddeley's lethal finish!"
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1206: Rimmer is already looking ahead to Friday's semi-finals. "I feel like I belong with the big boys. I know I'm in pb shape and it will take a pb to get through," he tells BBC Sport.
1203: The 800m heats are being run at pretty quick pace and Rimmer's heat is no exception. Michael Rimmer stays out of trouble and qualifies comfortably in second place in 1:45.66 behind Alfred Kirwa Yego. David Campbell finishes down in seventh.
1157: Britain's Steve Lewis doesn't last long in the pole vault. The British number one fails all three attempts at his opening height of 5.40m, well below his personal best of 5.61m.
1152: The men's 800m heats are in full swing with Morocco's Amine Laalou and Canadian Gary Reed winning the first two heats. Britain's Michael Rimmer and Irish runner David Campbell both go in the fourth heat.
1142: The men's pole vault is under way while the men's 800m heats are beginning. The first three in each heat go through, plus the six fastest losers.
1139: News has come through that the French men's 400m relay team won't be able to defend their world title because two of their quartet are injured. It's good news for British hopes although the French weren't expected to win again.
1135: The stadium is half-empty as the action begins in the women's hammer. Eileen O'Keefe represents Ireland. We've already had the medal ceremony for the men's high jump, in which Donald Thomas chewed his way through the Bahamas national anthem.