What is considered the official time and how is the race timed?
Runners with be timed using a D-Tag system by Chronotrack. Instructions to place this new timing device through your running shoes are on the website www.marinemarathon.com and on the D-Tag itself. Official times will come from the Chronotrack Company. Runner’s times will be reflected on the results website and on their downloadable finisher certificate. These are accepted by Boston Marathon as proof of time.