At the 2005 World Championships in Athletics Obergföll won the silver medal with a European record (70.03m) by finishing second behind Osleidys Menéndez, who set a new world record at the same event.
Obergföll finished 4th at the 2006 European Athletics Championships in Gothenburg.
With 70.20m, she improved her own European record at the European Cup Super League meeting in Munich on 23 June 2007.
At the 2008 Summer Olympics she won the bronze medal, but lost the European record to Mariya Abakumova and Barbora Špotáková.
At the 2012 Olympics in London she had her greatest success, when she won a silver medal.
At the 2013 World Championships in Athletics, which was held in Moscow, Russia Obergföll got the gold with a mark of 69.05 meters, reaching the success, what she was always fighting for.