[via] Walk your way to support Breast Cancer Awareness Month by participating in Making Strides this weekend. Prove your strength in The Randy Simmons 5K Challenge with a fitness test and a bike tour. Support youth education programs by donating new and used books while running up to 10K at the BookEnds BookDash. Tone your legs and dance it out for animals to live music and DJ sets at the Rock 'N Roll Half and Mini Marathons. Whether you want to keep that summer beach body, are getting in shape or just like to stay active, there are events going down all month that will both challenge your personal fitness and serve a greater purpose. Pick your cause of choice and test your endurance in walks, rides, or runs at October's top L.A. charity runs, marathons and fitness events.