The Niagara Falls International Marathon is an annual marathon running competition from Buffalo, New York, United States to Niagara Falls, Ontario, Canada, first held in 1974.
The participants of the Niagara Falls Marathon have to show passport or NEXUS card at the start, which will be given back at the finish line or kept by the racer during the race.
[2][3][4] The race was named the Buffalo Niagara Falls International Marathon from 1983 to 1986.
[2] In 1985, runners were led off the course, and used multiple different routes to get back on the course, resulting in unusual times and placements.
The first 6.5 kilometers (4.0 mi) are along the historic parkways of Buffalo before crossing the Peace Bridge into Fort Erie, Ontario, Canada.