Murer wins pole vault, Chernova wins heptathlon (AP)

AP - Yelena Isinbayeva extended her string of disappointments at major events on Tuesday, going under the pole vault bar on her final attempt while five other competitors were still going for gold at the world championships.

Source: http://us.rd.yahoo.com/dailynews/rss/sports/*http://news.yahoo.com/s/ap/20110830/ap_on_sp_ot/ath_worlds

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