People talk about marginal gains a lot in sport. In this blog I discuss six areas that can all influence the level of fatigue you experience and how you react to the golf, training and any other physical activity you undertake. Each of these could well be considered a marginal gain; those one percent margins that separate you from the rest of the field.

We start by establishing what external and internal load are, and why it is important to monitor your golf, training, and other physical activity load.