Last year, Running with Ed, a 38-mile relay race through Park City, raised $135,000 for schools in the Park City School District. That was a $45,000 increase from the 2011 total.

This year, event organizers are expecting even more growth. Several race teams signed up for this year's race immediately following last year's event.

But while the event usually draws some serious runners, Running with Ed is all about the kids, according to Nate Brown, a physical education teacher at Parley's Park Elementary School and Trailside Elementary School.

"The best part is that the money raised goes into the schools for possible grants and other items that help the kids," he said. "It's just a good way to show our kids and their families that we support them."

Brown is also part of a dual-immersion relay team called "No Merci" featuring Spanish and French teachers in the district.

"We have teachers that teach either Spanish or French all day to elementary kids through dual immersion programs," he said.

But some people don't understand the wordplay in the team's name, Brown added.

"People have been spelling it wrong ever since we signed up," he said, noting that most people try to spell it as 'No Mercy.'

That won't stop his team from having a good time at the event, though.

"It's not as competitive as people probably think," he said. "The biggest thing is it's a great way to get the teachers and people in our district to get out and show their support."

And the health benefits of getting in a good run are something Brown likes too.

"Other than that, it's just a fun day," he said.

Teams will start the race between 8 and 10 a.m., with the slower teams starting first. There are 175 teams registered for this year's event, up from 125 teams last year.

Race organizer Jennifer Billow of the Park City Education Foundation said about $110,000 have been raised so far, with plenty of fundraising left to go.