Although she is one of the youngest athletes set to compete in this summer’s Olympic games, 15-year-old Carolina Mendoza displays a maturity beyond her years through her training. In early June, TIME commissioned photographer Tomas Munita to photograph Mendoza as she prepared to represent Mexico in the 10-m platform dive in London—one of the only remaining Olympic sports permitting teenage competitors as young as 14.

(For daily coverage of the 2012 Games, visit TIME’s Olympics blog)

Munita, who photographed Mendoza at the National High-Performance Center (CNAR) in Mexico City, was drawn to his subject’s balanced approach to her training. At an age where many kids face distractions from friends, family and school, Mendoza has found a rare balance in the frenzy of her life.

“Her happiness and professionalism completely explains her success,” he said. “She is not just tough practicing over and over again, but she also loves what she does as a challenge and a game—not just as pure competition.”

Mendoza seems perfectly suited for the rigors of the Olympics. Learning to walk at 9 months old and swimming by age 2, she was encouraged athletically by her parents: her mother, a Mexican national track-and-field champion and her father, an Olympic cyclist competing at the 1968 Mexico City Games.

At age 11, Mendoza discovered that her experience in both swimming and gymnastics found harmony in diving. And now, four years later, she is packing for the London Games.

Munita watched in awe as Mendoza dove again and again during practice.  “She works every detail systematically and patiently. In between each dive, she finds time to joke and laugh loudly with her partners,” he said. “Then, suddenly, she’s running up the ladders again.”

Read more about Carolina Mendoza on TIME.com.

Tomas Munita is a freelance photographer based in Santiago, Chile. He previously photographed Church and State: The Role of Religion in Cuba for TIME.