Pedersen went to Red Mountain High School in Mesa, Arizona. She led her team to a 5A-DI state title as a senior. She set records for 5A with 2,611 points, 1,444 rebounds, 434 assists and 304 blocks.
USA Basketball
Pedersen was a member of the USA Women's U18 team which won the gold medal at the FIBA Americas Championship in Colorado Springs, Colorado. The event was held in July 2006, when the USA team defeated Canada to win the championship. Pederson has 12 rebounds in the game against Brazil. She averaged 6.0 points epr game over the course of the event.