In 2017, the Rock ‘n’ Roll Marathon Series will be celebrating 20 Years Running. It all began in San Diego in 1998. 2017 will also mark Synchrony Financial Rock ‘n’ Roll Brooklyn Half Marathon’s 3rd year with the series since the inaugural half marathon in 2015. Through the years, Rock ‘n’ Roll Brooklyn has grown from a 10K to a Half Marathon race, creating a new and exciting course for our runners. Join us in Brooklyn in 2017 for our series-wide celebration of 20 Years Running!