The Deer Grove Trail Half Marathon and 10K in Palatine, IL offers athletes a wide variety of terrain—including limestone, dirt, and asphalt—throughout the single-track course in Deer Grove West. The outer 10K loop combines that terrain with some obstacles such as roots, stumps, and branches as well as gentle, rolling hills and creek crossings. This is a cup-less event with no disposable cups at aid stations. Participants will need to bring their own cup or bottle.