"Team Elsie" includes the three-and-a-half-year-old girl for whom the team is named, her mom Tania Younkin, and her dad, Andrew Koonce.
Most days you can find them training together in their Cleveland Heights neighborhood.
"We've been training since January, getting ready for the race," says Tania, as she straps Elsie into the specially adapted stroller in which she'll race in the Triathlon.
Elsie has cerebral palsy and is legally blind.
"She inspires us every day to do the things we have to do to make her life as fulfulling and complete as it can be," Tania says, "and it helps get us through the day as well, and the training."
To the west, in Avon, "Team Benjamin" has been in training.
Ben Cox, who is 6, also has cerebral palsy, and will be right in front of his dad Matt as they wind their way six miles through the streets of downtown Cleveland on Sunday.
"Being with him and all the other families, it's such a heartwarming and exciting experience," says Matt, who has run once before with Ben in his special three-wheel stroller. "To be running with him, and everyone cheering us on!"
Team Elsie and Team Benjamin are among a growing number of families who are taking their children who have disabilities along with them during events, such as the Cleveland Triathlon.
All the families are clients of United Cerebral Palsy of Greater Cleveland, which is an official beneficiary of the race.
All the families credit UCP with their children making steady progress.
"Three years ago, he wasn't doing anything," Matt says of his son Ben. "He wasn't even sitting up on his own and they told us he probably wouldn't walk. Then he went to UCP and they used their therapies, and he learned to crawl, then stand, and now he's learning to walk.'
The "Teams" ask for sponsors to make a pledge, with all the funds raised going to UCP. Last year, the organization netted about $150,000. Sponsors who support the special Triathlon participants can make pledges through special web pages set up by the families.
Tania Younkin thanks every one of them in advance for their support. She's seen what is has meant to Elsie.
"It was amazing, the progress, not only that she made, but when we go to UCP every day we see the progress all the other children make. It's really inspiring."