Kids around the area are testing their physical abilities today at the Director-Essity Fox Valley Tough Kid Challenge.
Children go through 30 obstacles on a one and a half mile course.
Officials said that it's a great day to have fun and test out some physical abilities.
"This is a great event because it's different than just a running event," director Gary Wondrash said. "They have different types of obstacles that challenge them. Ninja Warrior is a very popular thing, this kind of goes in line with that."
Officials said that often times, kids will go home and make their own obstacle courses after running through the events.