Berlin, Aug 18 (DPA) Shelly-Ann Fraser and Kenenisa Bekele lived up to their top status while Yelena Isinbeyeva flopped on a surprise Monday at the World Athletics Championships here.

The Russian pole vault queen Isinbayeva, who has won every major title since 2004 and redefined the event, failed to clear an opening height as Poland's Anna Rogowska leaped to gold.

'I have no proper explanation for what happened today,' said Isinbayeva. 'When I was laying on the ground and concentrating I imagined my victory and not defeat.'

Fraser added the 100m world title to Olympic gold ahead of Kerron Stewart as Jamiaca ruled the sprints again, with Usain Bolt taking the men's race Sunday in a stunning world record of 9.58 seconds.

Fraser is now the third-fastest woman over the distance, tied with Christine Arron of France. Only Florence Griffith-Joyner (10.49) and Marion Jones (10.65) have run faster.

Bekele emulated his mentor Haile Gebrselassie with a fourth straight 10,000m crown and Yargeris Savigne led a Cuban one-two to defend her women's triple jump title.

Rogowska was not the only surprise winner on the night as Slovenian hammer thrower Primoz Kozmus and Spanish steeplechaser Marta Dominguez were also not the outright favourites.

Rogowska won her first big title with 4.75m, with compatriot Monika Pyrek and American Chelsea Johnson sharing silver with 4.65m.

The two-time world and Olympic champion Isinbayeva, 27, failed on the first attempt on her opening height of 4.75 metres, moved on to 4.80m but also failed to make that height on her final two attempts as she covered her face in her hands on the landing mat in shock.

Isinbayeva thus shared the fate of men's legend Sergey Bubka who famously no-heighted at the 1992 Olympics in Barcelona.

Isinbayeva last failed to win a major event when she came third at the 2003 worlds in Paris. She has 26 world records with 5.05m the outdoor mark, but was not as dominant as in the past and recently lost to Rogowska on countback.

'I think it happened because it had to happen,' said Isinbayeva. 'I hope I will recover from this.'

Rogowska had just one foul on 4.