_ The 2018 Monster Mash Not-Another-5K:
Welcome to the Third Annual Monster Mash 5k. On Your Left Fitness partners with the Town of Oro Valley Parks and Recreation and Steam Pump Ranch in hosting the Monster Mash Party and 5k Run/Walk. In addition, there will be a KIDS' FREE FUN RUN, where kids can come run in their halloween costume.
New in 2018 - This NOT just another 5k. You will have to perform tasks at four stations on the course before you run out to the turn around on the riverpath. There will be one final station before you cross the finish line.