Maria Mutola of Mozambique won the
women's 800 metres to become the first athlete to win six titles at World Indoor Championship level.
The 31-year-old Olympic champion had to sprint hard around the final bend to hold off a determined challenge from Jolanda Ceplak of Slovenia.
Mutola captured an historic sixth 800m crown in one minute 58.50seconds to Ceplak's 1min 58.72secs.
Jo Fenn of Great Britain ran a brilliant race to clinch the bronze.
Ceplak said she had been jostled by Mutola when the Mozambican
overtook her 100m from the line.
But Mutola reacted angrily: "I think that is pathetic, I ran a clean race. I did not push
her, it was just accidental contact.
"This is a very special win for me. I never dreamed I could win
the title six times."
Britain's Michael East suffered at the hands of officials when he was stripped of third place in the 1,500m for running wide and blocking Kenya's Laban Rotich.
Kenya's Paul Korir won gold with Ivan Heshko of Ukraine in second.
Brave Briton Jo Pavey could manage only a fifth-place finish in the final of the women's 3,000m.
The slow, tactical tussle did not suit the Briton who pushed up to third with 800m to go, but was soon blown away as Ethopia claimed a one-two finish.
Meseret Defar won her first major international title in a time of
9 minutes 11.22 seconds, just edging defending champion Berhane Adere by .21 secs.
Blackpool's Carl Myerscough finished a disappointing seventh in the shot put - his best throw of 20.27m was well-short of American Christian Cantwell, who clinched gold with 21.49m.
Meanwhile, Tatyana Lebedeva added long jump gold to the triple jump title she won on Saturday.
The Russian beat compatriot and defending champion Tatyana Kotova. World heptathlon champion Carolina Kluft of Sweden took bronze.
Levbedeva clinched the unprecedented double with a leap of 6.98metres, just edging Kotova by 5cms.
Kluft set a Swedish record of 6.92m but suffered a thigh injury late on.
Anastasiya Kapachinskaya further added to Russia's medal tally when she took gold in the last ever women's indoors 200m.
Kapachinskaya stormed home in 22.79secs to win an event which is to be scrapped at championship level.
Devers' dream of a golden double were dashed in Budapest
The IAAF are calling time on the distance undercover because runners' chances are too influenced by their lane draw.
Natalya Safronnikova of Belarus took the silver and Kapachinskaya's team-mate Svetlana Goncharenko claimed bronze.
Dominic Demeritte of the Bahamas ran a personal best time of 20.66secs to win the men's 200m, which is also being pulled.
The pre-race favourite powered his way around lane six to go two places better than he did recently in Birmingham and take a national record.
Perdita Felicien of Canada won the women's 60m hurdles, dashing Gail Devers' hopes of a golden double.
American Devers was expected to add to the 60m title she won on Friday, but
Felicien ran a championship record of 7.75secs to spoil the party.
Devers, .03secs slower than Canada's reigning outdoor world champion, took the silver and
Linda Ferga-Khodadin of France took bronze.
Czech Roman Sebrle won heptathlon gold from American Bryan Clay, who had led going into the final day of the championship.
Christian Olsson of Sweden won the men's triple jump after equalling the world record of 17.83 metres.
Olsson, who has taken over the number one mantle from Britain's Jonathon Edwards, produced his huge jump in the third round in Budapest.
Aliecer Urrutia of Cuba set the record in 1997.
Jadel Gregorio of Brazil was second with 17.43m and Cuba's Yoandri Betanzosjumped 17.36 for the bronze medal.
There was disppointment for Britain's women who failed to make the 4x400 metres relay final.
The GB quartet, who clocked three minutes 33.30 seconds to finish third in their semi-final, clearly missed injured UK number one Catherine Murphy and Helen Karagounis, who was controversially being rested.
Jenny Meadows said: "We we're only a second off the UK record but nine teams had the strength to make the final."
After leading the heptathlon on day three, Clay has to settle for silver
In another final-day shock, America also failed to qualify.
Russia went on to take the gold in a time of 3:23.88 to beat their previous world mark of 3:24.25.
Jamaica won the men's 4x400m relay from Russia and Ireland's men took bronze.
America had been tipped to add to their five titles but lost the baton
on the last handover and were disqualified.