Hundreds of people bounced their way through a 5K in Davenport this morning.   It’s called the Insane Inflatable 5K.   Racers ran, jumped, and hopped through a series of inflatable obstacles.   People of all ages joined in on the fun.   Two siblings were some of the first to finish during their wave.   The 10 and 12-year-olds taking home top honors    “It was hard at the end, but once I started slowing down it was easier. It got a little harder later on,” said Racers Madison and Caleb.   Parts of the proceeds from the 5K will go to the local Relay for Life event put on by the American Cancer Society.