THE OSR PROTO SERIES

Five original OSR races. One connected championship season.

Some races reward pure speed. Others reward navigation, tactical decision-making, route selection and endurance. Every race presents a different problem to solve, and every finish contributes to the season-long Proto Series standings.

Four qualifying races lead to the OSR PROTO CHAMPIONSHIP on Halloween night - the evening before the New York City Marathon.

Every race matters. Every position matters. Every point matters.

2026 PROTO SERIES

OSR1
September 3
POINT-TO-POINT 1 Mile - Midtown Manhattan

OSR5K
September 19
CHECKPOINT 5K - Red Hook, Brooklyn

OSR10K
October 3
BRIDGE-TO-BRIDGE 10K - Brooklyn + Manhattan

DAD'S ROUTE
October 17
POINT-TO-POINT - Manhattan

OSR PROTO CHAMPIONSHIP
October 31
CHECKPOINT 13.1 Miles - Halloween Night

HOW TO RACE

Run one race. Run a few. Or race the entire season.

Every Proto Series race is also a standalone OSR event.

You do not need to run the full series to enter any individual race.

Individual race registration opens approximately two weeks before each event, subject to availability.

As each registration opens, the corresponding race registration link will go live here.

PROTO SERIES SEASON PASS

Want the entire season locked in now?

The Proto Series Season Pass guarantees entry into all five 2026 Proto Series races, including the Proto Championship.

One registration. Five races. Discounted price. Your place in the entire season secured from the day you register.

Only 200 Series Passes are available.