The answer is yes. Especially if you are running in the Blackmores Sydney Running Festival in 10 days time. Reducing the amount of training you are doing before a running event decreases your risk of injury. Cutting back on training also allows the body to freshen up and repair itself. Whether you are a running a marathon or just heading out for a fun run, knowing your body and its limits is the most important factor in your training. So be smart and rest your body a week before going out for that 20 km run.