Just wanted to give a heads up about the upcoming XTERRA weekend at Sugar Bottom outside of North Liberty. On July 28, there's a 5k/10k trail run and on July 29, there's full off-road triathlon. The distances for the tri are 1500m swim, 15 mi bike, and 10k run.
You can find more info at http://www.xterrasugarbottom.com and register to race!
Email email@example.com if you have any other questions!