A triathlon is a multiple-stagecompetition involving thecompletion of three continuousand sequential endurancedisciplines. While manyvariations of the sport exist,triathlon, in its most popularform, involves swimming, cycling,and running in immediatesuccession over variousdistances. Triathletes competefor fastest overall coursecompletion time, including timed"transitions" between theindividual swim, cycle, and runcomponents
2. Further information: Triathlon atthe Summer Olympics. The sportmade its debut on theOlympic program at the SydneyGames in 2000 overthe Olympic Distance (swim: 1,500 m[1,650 yd] – bike: 40 km [24.9 mi] –run: 10 km [6.2 mi]).
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An Ironman 70.3, also known as a HalfIronman, is one of a series of longdistance triathlon races organized bythe World Triathlon Corporation (WTC).The "70.3" refers to the total distancein miles (113.0 km) covered in the race,consisting of a 1.2-mile (1.9 km) swim,a 56-mile (90 km) bike ride, and a 13.1-mile (21.1 km) run. Each distance of theswim, bike, and run segments is halfthe distance of that segment inan Ironman triathlon. The Ironman 70.3series culminates each year with aWorld Championship competition, ofwhich competitors qualify for duringthe 70.3 series in the 12 months priorto the championship race.
An Ironman Triathlon is one of a seriesof long-distance triathlon racesorganized by the World TriathlonCorporation (WTC) consisting of a 2.4-mile (3.86 km) swim, a 112-mile(180.25 km) bicycle ride anda marathon 26.2-mile (42.2 km) run,raced in that order and without abreak. It is widely considered one ofthe most difficult one-day sportingevents in the world
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