Brooks just went 3-0 to help Team USA defeat Team Europe in the 2015 Junior Solheim Cup. That wasn't Sierra's first time representing the United States: She was 2-1 as a member of the victorious side in the 2014 Junior Ryder Cup. She's also played for Team USA in the 2012 Evian Masters Juniors Cup, the 2014 Junior World Cup, and several times in the Wyndham Cup.
Brooks is still in high school in Florida, where she also runs track and carries a 3.5 GPA. She'll be attending Wake Forest when she starts her college golf career in 2016.
Her biggest exposure to the wider golf audience to date was actually in a tournament she didn't win. Sierra was a finalist in the 2015 U.S. Women's Amateur, falling in the championship match to fellow teen phenom Hannah O'Sullivan.
That visibility, plus her composure and maturity, have already earned her television appearances:
Just a few of Sierra's other accomplishments: She won the 2010 U.S. Kids World Championship, the 2013 AJGA Girls Championship, the 2014 South Atlantic Amateur and Polo Classic, the 2015 Women's Southern Amateur, and the most recent Class 1A state high school championship in Florida.
As I write this, Sierra is No. 2 in the World Amateur Golf Ranking.
Her next big goal? Making the 2016 U.S. Curtis Cup team. Anyone want to bet against her? Didn't think so.