According to Albert Einstein “…is so that everything doesn’t happen at once”. Consider yourself in the shoes of a timekeeper of athletic events. The stakes are high, consequently the choice of tools for the job imperative. Endurance or sprint? This question is at the forefront when it comes to providing the appropriate accuracy and granularity - seconds, tenths and hundredths of a second for a 100 metre race – hours, minutes and seconds to the marathon.