Billie Joe Armstrong is an American musician.
The Women 's Pole vault event at the 2011 World Championships in Athletics took place at the Daegu Stadium on August 28 and 30 .. Pole vault. Pole vault. 2011 World Championships in Athletics. 2011 World Championships in Athletics. Daegu Stadium. Daegu Stadium. Anna Rogowska of Poland was the defending champion , while 2008 Olympic champion Yelena Isinbayeva had returned to form after a career break in 2010 .. Anna Rogowska. Anna Rogowska. 2008 Olympic champion. Athletics at the 2008 Summer Olympics – Women's pole vault. Yelena Isinbayeva. Yelena Isinbayeva. American Jennifer Suhr had the two best clearances prior to the competition and Martina Strutz was ranked second in the world behind her .. Jennifer Suhr. Jennifer Suhr. Martina Strutz. Martina Strutz. Silke Spiegelburg -LRB- the Diamond League leader -RRB- , world indoor champion Fabiana Murer and Olympic medalist Svetlana Feofanova were the other main potential medalists .. Silke Spiegelburg. Silke Spiegelburg. Diamond League. 2011 Diamond League. Fabiana Murer. Fabiana Murer. Svetlana Feofanova. Svetlana Feofanova. The event was conducted in swirling winds .. World record holder Isinbayeva was the last to start , clearing her opening height but then struggling with her next three attempts , going under the bar on the last one .. World leader Suhr seemed off this night but cleared 4.70 on her second attempt , while Yarisley Silva set the Cuban national record at the same height on her third attempt .. Yarisley Silva. Yarisley Silva. Murer and previous world record holder Feofanova were clean through 4.75 , but were pushed into a tie for second place by Strutz ' German National Record 4.80 on her first attempt .. Murer cleared on her second attempt while Feofanova missed all three attempts .. At 4.85 Murer tied her own National and Area record , clearing on her first attempt and making Strutz pass to 4.90 to try to win .. Neither cleared on their two attempts , then Murer had the bar raised to 4.92 for her final attempt .