Every runner knows that you have to train for the TCS Amsterdam Marathon. Good preparation consists not only of a large number of training kilometres. Even in October it sometimes can be unexpectedly hot. In this case a lot of drinking during and after the effort and wearing functional clothing is a necessity, but also in advance it is important take a lot of liquid. We advise you to practise drinking during your training sessions, to bring water from home with you before the marathon and to drink before the start regularly. Running is good for your condition, but it also makes demands on your health. Training with expert coaches with experienced runners and a medical sports test will contribute to a successful (half) marathon.