Thousands of runners participated in the Color Run Lawrence, Saturday, Oct. 6, 2012.

photo by: Mike Yoder

Thousands of runners prepare to kick of the Color Run Lawrence, from the intersection of 8th and New Hampshire, Saturday, Oct. 6, 2012.

photo by: Mike Yoder

The first group of runners start the Color Run Lawrence, a 5K run, Saturday, Oct. 6, 2012. The runners ran through four color zones where they were sprayed with colored powder before returning to the finish line downtown.

photo by: Mike Yoder

Pink zone sprayers hit runners with colored powder mid-way through the Color Run Lawrence, a 5K run, Saturday, Oct. 6, 2012.

photo by: Mike Yoder

Runners pass through the orange color zone and get sprayed with powder during the Color Run Lawrence, a 5K run, Saturday, Oct. 6, 2012.

photo by: Mike Yoder

Runners in tutu's ran out of the orange zone near 11th and Pennsylvania St. during the Color Run Lawrence, a 5K run, Saturday, Oct. 6, 2012.

photo by: Mike Yoder

Some runners cover their noses and eyes to keep out powder as they pass through a color zone during the Color Run Lawrence, a 5K run, Saturday, Oct. 6, 2012.

photo by: Mike Yoder

Runners come out of the orange zone as other runners head into a pink zone during the Color Run Lawrence, a 5K run, Saturday, Oct. 6, 2012.

photo by: Mike Yoder

A participant in the Color Run Lawrence, comes out of the orange color zone during the 5K run, Saturday, Oct. 6, 2012.

photo by: John Young

Participants toss color packets in the air during a "color toss" at the color run in downtown Lawrence Saturday, Oct. 6, 2012.

photo by: John Young

KU student Leah Marten, right, throws a blue color packet in the air during a "color toss" at the color run in downtown Lawrence Saturday, Oct. 6, 2012.

photo by: John Young

Bryan Hahn, center, Topeka, lets out a scream during a "color toss" at the color run in downtown Lawrence Saturday, Oct. 6, 2012.