Career Highlights: Ranked No. 2 in the world in the 57 kg weight class, Hou seems to have a good opportuntity to add to her already impressive resume in London. Winner of 24 of 30 registered fights in her career, Hou first made a name for herself with a second-place finish at the world junior taekwondo championships in 2004. She later won gold at the 2009 and 2011 worlds. One month after taking third at the 2012 German Open, Hou won silver at the Asian championships in early May. Given her recent momentum, Hou could make her first Olympics a memorable one.