The 2025 Boston Marathon had 31,670 people registered to run, with 28,845 actually starting the race. Of those who started, 28,384 finished, which is about 98.4% of the starters
. This number is typical for recent years, with the no-show rate around 2,800 runners. The race included 16,103 men, 12,210 women, and 71 non-binary runners
. Historically, the Boston Marathon usually has around 30,000 participants starting the race each year, with the largest field ever being in 1996 with 36,748 starters
. In summary, approximately 28,800 runners start the Boston Marathon annually, with around 28,300 finishing in recent editions such as 2025.
