Head to Springdale, AR for this ninja-themed event offering 5K, 10K, and half marathon distances starting at 8:00 AM near the splash pad. You'll need to register beforehand on RunSignup (no day-of registration available), with packet pickup opening 30 minutes before the race and closing 10 minutes before the start. All three distances use out-and-back loops—the 5K repeats a 0.78-mile loop twice, the 10K repeats it four times, and the half marathon repeats a 1.09-mile loop six times—with a 3-hour 30-minute time limit for all runners.