Pacing in age group marathoners in the “New York City Marathon” The pacing in the marathon has been studied especially for the top runners and less for the age group runners. We studied the pacing of 20'283 women and 28'282 men who run the ‘New York City Marathon’ 2015.When analyzing only one output, you can exclude the influence of the weather.
It shows for men like women that the running speed decreased during the race, but all runners were able to deliver a final spurt from kilometers 40 to the finish. The work can be found under https://www.standfonline.com/doi/full/10.1080/15438627.2017.1393752