The Associated Press reports Sean ‘P. Diddy’ Combs has been in training for the past three weeks because he plans to run in the New York City Marathon. The 26.2-mile event, organized by the New York Road Runners Club and sponsored by ING, will be held November 2nd. Combs, 33, hopes to raise $1 million for three children-focused groups. He’s running up to 15 miles now, a spokeswoman said Tuesday.