Ironman is a 1995 novel by young adult writer Chris Crutcher who studied art and literature at the University of Notre Dame in his twenties.
The novel is the story of Bo Brewster, a high school student training for a triathlon while also in disputes with his father and English teacher, both of whom exhibit portentous views of masculine authority.
Motivated by years of power struggles with his father, the teenager trains vigorously for the Yukon Jack Ironman Triathlon while attending anger management sessions and writing letters to Larry King about his experiences.
After the latest dispute with his English teacher lands him in anger management, Bo is brought face-to-face with his own family problems (namely his difficult relationship with his father), and has his eyes opened to the issues his classmates are dealing with.
But with the help of the other kids in the anger management group, Bo overcomes the obstacles and meets his goal, to compete in the Yukon Jack triathlon, and also beats Wyrack.