The Honolulu Marathon is the fourth largest marathon in the United States after New York, Chicago, and Boston. There is no time limit which allows everyone to finish. The Honolulu Marathon course includes spectacular ocean views alongside world famous Waikiki Beach, and Diamond Head and Koko Head Volcanic Craters. The Course is flat except for short uphill grades around Diamond Head. This McMillan Marathon Training Plan is Greg’s tried and true marathon plan but specifically geared towards The ...