These race veterans (they've participated in the event every year since 2002) had a plan: stay clothed until right before the run to avoid "peaking early."

Pictured: back row, from left to right, Austin Eichelberger of Wrentham, David Hallowes of Salem, Chris Jones of Roslindale, and Sean Henningan of Watertown. In the front, Michael Saverse of Somerville.

Photos: Last year's run