Ultra-triathlon body of Ultra Triathlon. Ultra-triathlon An ultra-triathlon is a long-distance triathlon. The term generally refers to all triathlon events of distance greater than the Ironman Triathlon. Thus, every ultra triathlon event must involve more than of swimming, of cycling, and a full marathon () of running. The most common distances are the double, triple, quadruple, quintuple and deca triathlon. Unlike a standard triathlon event, an ultra-triathlon event may not necessarily involve the three component disciplines of triathlon (swimming, cycling and running) in direct consecutive order, but may instead consist of multiple consecutive individual triathlons performed on consecutive days. The IUTA
Oklahoma City Memorial Marathon has been called one of the "12 Must Run Marathons" by Runner's World Magazine. The Oklahoma City National Memorial is the sole beneficiary of Oklahoma City Memorial Marathon event proceeds. The Oklahoma City Memorial Marathon has contributed $2.175 million to the Memorial since its inception. The marathon weekend races consists of a marathon, half marathon, marathon relay (5 member teams), 5k, and kids marathon. The race is an official Boston Marathon qualifying event. The course begins at the Oklahoma City National Memorial & Museum, winds through the Capitol campus, Nichols Hills, Lake Hefner trail, and several of Oklahoma City’s historic