Niagara Falls International Marathon

Registration is open to all runners and is done online only. It opens in spring 2026 and closes September 30 at 10:00am. There is no walk-up or race-weekend registration, so do not wait. If you are registering with a group, you get one free entry for every ten registrants.

Yes, the Niagara Falls International Marathon is a certified Boston qualifier. The course is flat and well-suited to running a qualifying time if you are in shape for it.

The time limit is 6 hours.

It is one of the flattest marathon courses you will find in the Northeast. Total elevation gain is under 100 feet and the net change is minimal, making it a genuinely fast course rather than just a marketed one.

Recent finisher counts have been close to 1,000. It is a mid-size regional race, which means uncrowded roads and a low-key atmosphere compared to bigger city marathons.

Race day falls in late October, when temperatures usually range from the upper 40s in the morning to the low 60s by afternoon. Expect cool to comfortable running conditions, but plan for potential wind along the river and near the falls.

The closest airport is Niagara Falls International Airport, about 6.5 kilometers from the start. Buffalo Niagara International Airport is roughly 30 kilometers away and has more flight options. Free parking is available at Rapidsview Park, and many out-of-town runners base themselves across the border in Niagara Falls, Ontario.