The first Boston Marathon had only 15 participants.The event now attracts an average of about 30,000 registered participants each year. Women were not allowed to enter the Boston Marathon officially until 1972. Roberta “Bobbi” Gibb is recognized by the race organizers as the first woman to run the entire Boston Marathon (in 1966). In 1967, Kathrine Switzer, who had registered as “K. V. Switzer”, was the first woman to run and finish with a race number. She finished despite an infamous incident in which race official Jock Semple tried to rip off her numbers and eject her from the race. In 1996 the B.A.A. retroactively recognized as champions the unofficial women’s leaders of 1966 through 1971. In 2015, about 46 percent of the entrants were female.
Boston marathon is one of the most difficult of the World marathon majors to get an entry into due to its requirement for runners to complete a standard marathon course certified by a national governing body affiliated with the International Association of Athletics Federations within a certain period of time before the date of the desired Boston Marathon (usually within approximately 18 months prior).Runners must be 18 years or older from any nation.The qualifying times are based on age as follows:
|18–34||3 h 05 min||3 h 35 min|
|35–39||3 h 10 min||3 h 40 min|
|40–44||3 h 15 min||3 h 45 min|
|45–49||3 h 25 min||3 h 55 min|
|50–54||3 h 30 min||4 h 00 min|
|55–59||3 h 40 min||4 h 10 min|
|60–64||3 h 55 min||4 h 25 min|
|65–69||4 h 10 min||4 h 40 min|
|70–74||4 h 25 min||4 h 55 min|
|75–79||4 h 40 min||5 h 10 min|
|≥80||4 h 55 min||5 h 25 min|
During the 2018 registration period, the breakdown of accepted Qualifiers was as follows:
256 Qualified Athletes with Disabilities are expected to be accepted beginning October 16th.
Around 30,000 Boston Marathon racers will take off from Hopkinton on Monday, April 16—but not all at once. Different athletes start at different times based on their qualification times to ease congestion.The first batch departs at 8:40 a.m., and the final wave starts running at 11:15 a.m.