Abstract:
:This study aimed to analyse differences in pacing profiles in four marathon competitions and to explore that pacing per time category. A database of 91,493 runners gathered from 4 different races was analysed (Valencia, Chicago, London and Tokyo Marathon). Participants were categorized in accordance with their completion time. The relative speed of each section for each runner was calculated as a percentage of the average speed for the entire race. In the four marathons studied, the first 5 km differed widely, presenting London the highest relative speeds (5 km: CI95% London vs. Valencia [12.1, 13.6%], p < 0.001 and ES = 2.1; London vs. Chicago [5.5, 7.1%], p < 0.001 and ES = 1.1; London vs. Tokyo [15.2, 16.8%], p < 0.001 and ES = 2.3). Races did not differ at each section for high-performance runners (sub-2:30), but differences between races increased as the time category increases (e.g. 35 km and sub-3:00: CI95% London vs. Tokyo [-3.1, -1.8%], p < 0.001 and ES = 0.7; 35 km and sub-5:00: London vs. Tokyo [-9.8, -9.2%], p < 0.001 and ES = 1.3). The difference in relative speed between the first and second half of the marathon was higher in London than in the other marathons (e.g. CI95% London vs. Valencia [10.3, 10.8%], p < 0.001 and ES = 1.3). In conclusion, although race characteristics affect pacing, this effect was higher as the category time increases. Race pacing characteristics should be taken into consideration for runners and coaches choosing the race and working on pacing strategies, for researches to extrapolate or interpret results, or for race organizations to improve its pacing characteristics. Highlights The first 5 km differed widely on pacing profiles between the four marathons assessed. London had the highest relative speeds in the first 5 km. Race characteristics affect pacing, but this effect was higher as the category time increases. The difference in relative speed between the first and second half of the marathon was higher in London than in the other marathons.
journal_name
Eur J Sport Scijournal_title
European journal of sport scienceauthors
Oficial-Casado F,Uriel J,Pérez-Soriano P,Priego Quesada JIdoi
10.1080/17461391.2020.1838621subject
Has Abstractpub_date
2020-11-17 00:00:00pages
1-8eissn
1746-1391issn
1536-7290pub_type
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