The Boston Red Sox will host a marathon inside Fenway Park on Sept. 15.
The course will be 112 laps around Fenway's warning track, which has some sharp turns in the outfield. Each lap is 350 meters and will be counted electronically. There is just one water stop that the runners will pass on every lap.
That may not be as painful as running 211 laps on a banked 200-meter track, which is what the Armory Track and Field Center in New York City hosted in March. Former Dartmouth runner Chris Zablocki and Finland's Lauren Manninem set indoor marathon records of 2:21:48 and 2:42:40, respectively.
The marathon begins at 5 p.m. on a Friday and has a six-hour cutoff.
Race director Dave McGillivary, who is also the race director of the Boston Marathon, expects the course to be certified by USA Track and Field. That would allow for anyone who hits their respective Boston Marathon qualifying time to return to Boston for another 26.2 mile race but from Hopkinton to Boylston Street.
Fenway has previously hosted the Run to Home Base 9K in July. The race raises money for veterans and their respective families.