b'Sport Science | Engineer InnovationThere will be other limiting factors thatactual time saved was significantly less we are not considering. Kipchogesthan 4.5 minutes, compared with a ability to dissipate heat will probablyregular big-city marathon.have been compromised as a result of the drafting - especially whenAs impressive as this 1:59:40 was, considering that any cooling air thataerodynamic factors plus any reached him will have traveled past othercontribution from shoe technology mean hot runners - in fact, he was sometimesthat this effort was somewhat less seen moving to the wing of theimpressive as an athletic feat than his formation, perhaps to cool down. Thisgenuine world record run of 2:01:39. might be a second or third-order effect,However, it would be churlish not but worth maybe considering for ancelebrate both the achievement and the athlete competing at the absolute limitsinspiration that Kipchoge will have of human performance. provided to generations of athletes, including in beating my own marathon Also, the mannequin isn\'t a perfectpersonal best of 2 hours 182 minutes and representation of Kipchoge, and it looks17 seconds.like our "virtual Kipchoge" could usefully use some tailored nutrition to lose a fewWe are doing further design exploration pounds of virtual fat. simulations, in which we examine all possible pacing formations to determine Conclusions which is the most effective. Keep an eye Kipchoge is absolutely the beston the Simcenter blog to see those marathon runner in the world, probablyresults.the greatest of all time. Whatever aids he had, legitimate or otherwise, this wasReferences: still one of the greatest feats of[1] What will it take to break the 2-hour endurance running in history. marathon? By David Shultz, Science Magazine, May 2017. www.Our simulations suggest that thesciencemag.org/news/2017/05/what-influence of pacers, reduced thewill-it-take-break-2-hour-marathonaerodynamic drag experienced by Kipchoge by a maximum of about 83[2] Breaking2: high-tech shoe for Nike\'s percent, saving him over 30 Watts,bid to break the two-hour marathon, (about 10 percent of his overall effortThe Guardian, www.theguardian.level), compared with a completelycom/lifeandstyle/the-running-solitary runner at the same speed. Thisblog/2017/mar/07/breaking2-high-reduction in drag could be worth astech-shoe-nike-break-two-hour-much as 4.5 minutes, compared with anmarathonundrafted runner at the same speed. However, since his legitimate world[3]The Science of Sport: The pursuit of record was run in partially draftedthe sub-2 marathon: Where to next? conditions, and our simulations arewww.sportsscientists.com/2017/05/somewhat idealized, it is likely that thepursuit-sub-2-marathon-next/ n15'