A Triathlon is a numerous stage rivalry including the fruition of three consistent and consecutive perseverance disciplines. While numerous varieties of the game exist, Triathlon, in its most famous structure, includes swimming, cycling, and running in quick progression over different separations. Long distance runners go after quickest general course fulfillment time, including timed "moves" between the individual swim, cycle, and run segments. "Triathlon" is of Greek root. Triathlon races shift in separation.
As per the International Triathlon Union, and USA Triathlon, the primary worldwide race separations are:
Sprint Distance; 750-meter (0.47-mile) swim, 20-kilometer (12-mile) bicycle, 5-kilometer (3.1-mile) run
Halfway (or Standard) separation; regularly alluded to as the "Olympic separation": 1.5-kilometer (0.93-mile) swim, 40-kilometer (25-mile) bicycle, 10-kilometer (6.2-mile) run
Long Course;1.9-kilometer (1.2-mile) swim, 90-kilometer (56-mile) bicycle, and a 21.1-kilometer (13.1-mile) run (half Triathlon)
Ultra Distance; usually alluded to as 140.6 (aggregate separation in miles, identical to 226.2 km) or the 'Ironman'; 3.8-kilometer (2.4-mile) swim, 180.2-kilometer (112.0-mile) bicycle, and a 42.2-kilometer (26.2-mile) run (full Triathlon)
The most perceived marked Ultra Distance is the Ironman Triathlon.
The primary modern swim/bicycle/run occasion to be known as a "marathon" was held at Mission Bay, San Diego, California on September 25, 1974. The race was considered and coordinated by Jack Johnstone and Don Shanahan, individuals from the San Diego Track Club, and was supported by the track club. 46 members entered this occasion.