Teshya Alo is 14 years old and a hundred pounds. But on the judo and wrestling mats, she throws down women twice her age and pounds heavier. And she beats boys. Now, she has her sights set on a judo world championships and eventually the Olympics. But it won’t be easy. Her raw talent provokes jealousy. Her training strains her family’s resources. She’s a student at a select private school in Hawai‘i. And she’s going through puberty.