When is race season in Upper Marlboro?
September is the busiest month for races in Upper Marlboro, with 2 of the 3. If you are flexible on the date, that is the quickest way to narrow things down.
Maryland · Race calendar
Running Races in Upper Marlboro, Maryland
Upcoming running races in and near Upper Marlboro, Maryland - 5Ks, 10Ks, half marathons and more, with dates, pricing, finish-time stats, start-line maps, and local run clubs to train with.
3 upcoming races · 1 with finish-time stats
By the numbers
The Biggest and Longest-Running
The Upper Marlboro races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.
How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Jul 27, 2026.
Common Questions About Racing in Upper Marlboro
Where can I train for a race in Upper Marlboro?
Browse Upper Marlboro run clubs on RunSesh to find a training group at your pace.