2015 IMPACT25 Athlete: Simone Biles

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"I wanted to end with a bang." -- Simone Biles on her gold-medal-winning floor exercise at the world championships

You don't mess with Texas -- and, as gymnasts and gymnastics fans around the world are quickly discovering, you don't mess with Simone Biles.

The 18-year-old, who has lived in the Lone Star State since she was 3, took home her third consecutive national all-around title in 2015 -- a feat that hadn't been accomplished since Kim Zmeskal did it from 1990-1992.

She also earned her third straight all-around title at the world championships, making her the first female ever to dominate so handily. (She's won 14 world championship medals in three years; 10 of them gold, the most by a woman.) Perhaps the most amazing part of all? A lot of people still don't know her name.

That'll surely change when she hits the beam -- and floor and vault -- at the 2016 Rio Games, where her biggest competition will likely be teammate Gabby Douglas, the 2012 all-around gold medalist.

More On Simone Biles

• Biles earns record 10th worlds gold Story »

• The real deal Video »

• U.S. duo awes the world Story »

• Biles goes pro Story »

• Biles' poolside homework odyssey Story »

The IMPACT25 is espnW's annual list of the 25 athletes and influencers who have made the greatest impact for women in sports. Explore the 2015 list at espnW.com/IMPACT25.

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