Experience a unique combination of history, nature, and recreation on a 10K Champoeg Park course through forests, fields, and wetlands. 30K entrants complete three 10K loops. Half marathoners complete two loops and an extension for remaining distance. The marathon relay is a four-person marathon relay. Each person on your marathon relay team runs 1/4 of a marathon distance - or one loop of the half marathon loop. Or choose our new full marathon option!