Exemplary are the fairly large numbers. Here one has apparently thought that the clock must be readable even under adverse lighting conditions (eg in the forest and at dusk) during running (!), Without the need for set up his reading glasses. Unfortunately the numbers are very small distances so that I3 good cook also could be 8.
So one has to remember that leading zeros are not hidden, in the example it must be a I3 because 8 would stand there 08.
Apart from this small weakness a perfect realization of what is necessary for the runner and swimmer.