Training hard in the two weeks prior to your race, particularly if it is a marathon, will not increase your fitness. In fact, you could spend this time in bed doing nothing at all and it would still not decrease your fitness. Taper or scale back your running during this period to avoid pre-race injury, maximise glycogen storage and preserves muscular freshness.Why taper your trainingTapering involves scaling back your running distance and effort level, and many world records have been set when, because of minor injuries, runners have had to take their training two weeks prior to a race.These athletes were forced to ease off their training, and then they went on to surpass everyone’s expectations. The fact is, training hard two weeks before a race can only hurt you physically. It can cause injury, tear down muscles and deplete your glycogen stores. Tapering your training protects your body from last-minute injury. It also gives your body a well deserved rest, during which time, you will have lost none of your fitness.How do I do it?Many runners continue to train two weeks before a race for psychological reasons. This satisfies a mental urge to exercise and prepare, despite the fact that there are no physical advantages. Finding your own balance between all rest and the amount of exercise you need in order to feel prepared his key.Everyone is different, with varying psychological requirements of exercise. How much you taper your training is therefore a subjective thing, so scale it down to whatever you feel reasonable to you. A good general guideline to tapering is to scale back your distance and intensity by 30%.So, if you had been averaging 40 miles per week in training, you should reduce this distance to no more than 28 miles per week of easy running in a conversational pace. You may even want to run with a personal stereo to ensure that you are disassociating and thereby running easily. This will not deplete glycogen stores or hinder your performance on race day.