amy boorman is her coach. >> she flips backward with a straight body two times on a second flip she does a half-turn and lands forward. >> reporter: in 2012 simone was too young to compete in the london games. but since then she's been on fire. >> sometimes i hear the crowd cheering. and most of the time like your body's on auto pilot so sometimes even after i do a floor routine, did i really just all-around champion. the first woman to win the title three times in a row. she's earned 14 medal in the world championships, 10 of which are gold. "nightline" sat down with her before the u.s. olympic team trials to find out what it takes to make gymnastics h?istory. >> on mondays and wednesdays i train 12:30 to 5:30. tuesday, thursday, friday, i train 9:00 to 12:00, then 3:00 to 6:00. saturday we practice 9:00 to 1:00. ethic and raw talent earning her the admiration of legendary coaches. today she is the best gymnast in the world. >> reporter: bela karolyi who's coached nine olympic champions including the greats says simone compares to the very best in olympic gymnastics history. >> back at

simone biles is arguably the greatest gymnast on the planet and her long time coach is her name is amy boorman. >> reporter: a six-year-old girl named simone biles caught the attention of her mother. >> you nearly discounted the greatest gymnast in the world. >> absolutely. you need to listen to your mother. >> saw simone for herself. she became her coach and trained her for years. >> she knows where she is in the air at all times. when you see tall flipping and the twisting that is something you can't teach. >> reporter: simone biles' secret is her joy, the silly sarcastic young woman knows how to have fun while competing hard and it was boorman who led her from one achievement to the next. the pair reached incredible mission, she is the new gymnastics coach in ebo, sarasota. john rogers, newschannel8. >>> apple is ready to fight back against a massive tax bill. that story is coming up. >> plus, what's the best bay area college for smoking some weed? a new national ranking awarding that dubious distinction and several others to local ? ? the ford freedom sales event is on! our biggest event o

. >> reporter: years ago, amy was running a gymnastics camp when a six-year-old girl named simone biles caught the attention of boorman's mother. >> i said i'm busy. >> you nearly discounted the greatest gymnast in the world. >> absolutely. all because of my mom. eventually saw simone for herself. she spent years guiding and training this athlete. >> she knows where she is in the air at all times. when you see all the flipping and the twisting that is something you can't teach. >> reporter: simone's secret is her joy. she knows how to have fun while competing hard and amy led her from one achievement to the xt moment person. i never bought too far into the future. we planned on what is the big meet at the end of the season. >> reporter: the pair reached incredible sights. now, boorman has embarrassed on a new mission. >> i'm sad i'm not going to see her every day. >> reporter: but she is excited to see what the future will bring. >> do you hope to find the next simone biles here? them out there. >> reporter: so, the folks are really excited about it. it is a world class facility that cater to cheer leaders. ninja warrio