Christel Simms is from Ewa Beach, Hawaii and was a college swimmer who attended the University of Southern California.

She represented the Republic of the Philippines at the 2008 Summer Olympics in Beijing in the sport of swimming for the 100-meter freestyle event.

Simms was the seventh female representative in the entire history of the Republic of the Philippines to compete in the Olympics, since the country first participated in the Paris 1924 games.

Throughout her swimming career, Simms has continued to play a leadership role among Hawaii swimmers.

A few of her most notable sport highlights include: making the USA National Junior Swimming Team at 16 years old, qualifying for the Olympics, being a 10-time Hawaii State Champion, a 4-time recipient of the Governor Linda Lingle Most Outstanding Female Swimmer Award, breaking a Western zone record in the 200-meter freestyle event at 13 years old, and having broken 54 state records (not including relays) to date.