About the Race
What is it?
The 2/3 Marathon is exactly what it sounds like: 2/3 of a marathon, or 70 laps around the McCarren Park track in Brooklyn, totaling about 17.5 miles.
But this isn’t your average road race.
Each runner is required to bring a lap counter—a dedicated friend or volunteer who clicks a handheld counter for every lap completed. The race ends when the first runner hits 70 laps. Everyone else finishes the lap they’re currently on and then crosses the line—meaning your “final lap” might be lap 40, 55, or somewhere in between.
The History
The 2/3 Marathon began in 2019, when two friends—Luc and Sam—decided to settle a simple debate: who would win in a run from one of their houses to the other, in the Berkshire Hills of Western Massachusetts. The distance turned out to be exactly 17.5 miles, or 2/3 of a marathon.
The next year Luc and Sam moved to Brooklyn, NY. What started as a personal bet has turned into a grassroots Brooklyn tradition.
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