Eleven world records have fallen at the Summer athletic competition in First State Janeiro|Rio|city|metropolis|urban center} de Janeiro as of weekday morning. a lot of records could also be broken before the games conclude on Aug. 21, however the highest world marathon times area unit in all probability safe. the present world records — 2:02:57 for men and 2:17:42 for girls — were set by Dennis Kimetto and Paula Radcliffe at the Berlin and London marathons, severally.1 The last runner to line a record within the marathon at the athletic competition was Ethiopian Abebe Bikila, World Health Organization won the laurel wreath in 1964 in Japan.
Ahead of the women’s marathon Sunday and also the men’s every week later, I examined factors that play quick marathon times, trying to find clues on whether or not a record is probably going to fall in Rio. It’s onerous to interrupt a record in any event, however it’s particularly tough within the marathon, a 26.2-mile race wherever finishing times area unit heavily influenced by the course and race-day conditions. The weather throughout the Summer athletic competition can be the largest barrier to a record — and that’s no completely different this year.Even though it’s technically winter in Brazil, the temperatures might feel aestival to several athletes. Heat is like kryptonite for marathon runners, and as of currently, the forecast for the women’s race predicts a temperature of sixty seven to seventy two degrees Gabriel Daniel Fahrenheit at the 8:30 a.m. start time, with the temperature reaching regarding eighty degrees by eleven a.m., once racers are finished. that will sound pleasant for a stroll on the beach, however it’s much hot if you’re running complete for over 2 hours. Running generates a great deal of body heat, and also the quicker you go, the a lot of heat you turn out. Athletes will acclimatize to the warmth to some extent — that’s why marathon runner Shalane Flanagan trained during a heat and humidness chamber at the U.S. Olympic coaching Center — however to perform at their best, they have that body heat to dissipate.
The conventional knowledge is that the best temperature for running a quick marathon is fifty degrees Gabriel Daniel Fahrenheit, aforementioned Alex Anne Hutchinson, a Runner’s World journalist, however a 2012 study analyzing knowledge from 9 years’ value of finishes at the Paris, London, Berlin, Boston, Chicago and ny town marathons ended that the quickest median times were announce at a race-day temperature of regarding forty three degrees Gabriel Daniel Fahrenheit for men and regarding forty four degrees for girls. “Is it progressing to be hot or simply moderately heat in Rio? It doesn’t matter,” Anne Hutchinson aforementioned. “If it’s not cold, it’s too hot to run an excellent marathon time.”
The humidness in Rio (predicted to be around seventy p.c at the beginning of the women’s race Sunday) can solely build things worse. As humidness will increase, the body’s ability to cool down itself via evaporating sweat diminishes. “Once you begin dripping, you’re now not dissipating heat moreover as you may,” aforementioned Anne Hutchinson, World Health Organization has conjointly revealed AN analysis of what it might desire run a sub-two-hour marathon — the marathon’s version of the four-minute-mile barrier and a mark that has nonetheless to be broken.
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