LA CROSSE, Wis. (WKBT) -

A race to raise awareness for autism is drawing a bigger crowd than planned.

More than 450 people have signed up for the Puzzled Classic, and organizers are expecting even more people to join the races Saturday morning.

The event is also a fundraiser for families who have children with autism in our area.

Organizers are thrilled with the turnout, because it means people want to make a difference in our community.

"That means that there are people in the area that are affected by autism," said Adam Weissenberger, president of the La Crosse Area Autism Foundation. "There is a need for what is going on here and people see that, and they also want to keep this great classic going."

Some major roads in La Crosse will start closing at 6:30 a.m. Saturday morning for the race. Copeland Avenue will be blocked from Main Street to where it splits with Rose Street, and West Avenue will be closed from Cass Street to State Street.

Both avenues are expected to open back up at 11 a.m.

For more information on the Puzzled Classic, visit laxautism.org.