Oxley Creek Common provides Not Butter a straightforward, runnable course: an out-and-back along Oxley Creek on a smooth, packed surface with little elevation change. It's a multi-format running event in practice, with timed endurance runs using the same path as a separate elimination race, giving it a backyard-ultra feel rather than a polished road-race production.
The course seems direct rather than complex: consistent footing, minimal climbing, and enough repetition for pacing and patience to be key. The unique element is "The Drop," where runners complete timed laps, take a brief recovery, and then face a stricter cutoff each round; the last runner to finish each lap is eliminated, until strategy, endurance, and nerve determine the final competitor.