Stephen King - The Running Man by Richard Bachman

One of several novels that Stephen King wrote under the name Richard Bachman.
Ben Richards has no job, no money, and a young daughter who urgently needs medical attention. Desperate and out of options, he signs up for The Running Man, “the biggest show in the country” on the government-operated Games Network. It’s an ultraviolent competition where the stakes could not be higher.
Ben must stay alive for thirty days while an elite strike force, trained to kill, hunts for him. If he can survive for a month, he wins a billion dollars. No contestant has ever lasted longer than eight days. Now Ben's going prime-time on the Network's highest-rated viewer participation show. Can Ben Richards win this ultimate game of life and death?