15 > TRIPLE JUMPER > Union City, Calif.
Last month the sophomore from James Logan High won the state championship in Fresno with a jump of 42'11½", then placed first in the World Youth Trials in Ypsilanti, Mich., by going 43'4¼", a personal record and the sixth-best performance ever by a high school girl. Ciarra holds the indoor record for sophomores (42'½") and the national indoor record for 14-year-olds (41'8¾").
Sheila Hudson, who was ranked No. 1 in the U.S. from 1989 to '96. Says Arno Brewer, Ciarra's father, who triple-jumped at Cal State--Hayward, "They're probably the best two technicians."
"She learned how to do the event properly at a young age," James Logan coach Lee Webb says. "I believe the national record's right around the corner for her."
Ciarra will compete at the IAAF World Youth Championships in Bressanone, Italy, this week. How she does there could indicate whether she'll be able to achieve her goal: a medal at the 2012 London Olympics.
14 > GOLFER > Coral Springs, Fla.
In 2007, at age 12, Alexis became the youngest golfer to qualify for the U.S. Women's Open; she's also qualified in the two years since. Though she has yet to make the cut, she played on the weekend for the first time in a major in April, when she shot a three-under 69 on Sunday and finished tied for 21st at the Kraft Nabisco Championship. After winning two junior tournaments earlier this year, Alexis is ranked No. 2 among junior girls—despite being at least two years younger than the rest of the players in the top five.
Cristie Kerr. Like the 2007 U.S. Open winner, Alexis is strong with her irons, and she's already as long off the tee as the 31-year-old LPGA pro.
"Even in practice, if she hits a bad shot, she can't believe it," says her swing coach, Jim McLean. "The intensity she brings whenever she's hitting balls—in practice or in a tournament—stands out."
Homeschooled since she was 11, Alexis hasn't decided if she will go to college. If she continues to progress, she could join the LPGA Tour at 18.