Local friends, Jason Orsini and Don Micheletti of Levittown have been qualified and are entered in the 2011 National Ironman Triathlon Championships to be held in Lake Placid on Sunday, July 24. The Ironman: which consists of a 2.4-mile swim, 112-mile bike, and a 26.2-mile marathon run, is considered the world’s most challenging endurance event. Micheletti, 50, is simply training to be able to complete his first triathlon at the Ironman. Orsini, 30, has higher aspirations and is training to qualify for the world championships to be held in Hawaii. The Ironman has a 17-hour limit; Orsini is training to finish under 10 hours. Both athletes will embark on a yearlong training program to successfully participate.