The second annual CTfastrak 15K and relay was held in New Britain on Sunday morning.
The event was hosted by the Hartford Marathon Foundation and the state's Department of Transportation.
It kicked off at 9 a.m. at the CTfastrak station in downtown New Britain.
"The course itself is actually pretty straight and relatively flat so it's fun. It's nice. It's a cool thing because so few people have had a chance to do this," said Tim Nixon, who is a runner.
Participants ran along the bus-only road, which goes through Newington, West Hartford and Hartford. It finished at Allyn Street in Hartford.
"It was really fun. It was very fast. It was kind of hard with no shade, but it was so quick like the miles just went by so fast," said Hayley Maldonado, a runner.
Runners were given CTfastrak buses to transport them after the race.
The Hartford Marathon Foundation said they anticipated about 700 runners this year, which is the second year the Hartford Marathon Foundation and Department of Transportation teamed up for the 9.3 mile run.
"When they were building it, we were already talking to the DOT about 'hey, when you open this, let's let runners use it once a year and promote the bus way'," said Beth Shluger, CEO of the Hartford Marathon Foundation.
There was a celebration at Black-Eyed Sally's in Hartford following the race.
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