Sprint 100 metres from a standing start on a measured straight course. React to the judge's signal to start. Sprint at full speed to the finish line. Timer is recorded in seconds and centiseconds.

Distance must be exactly 100 metres on a measured course. Standing start — no blocks required. Timer starts on the judge's signal, stops when you cross the finish line. Must stay in your lane. Time recorded as seconds + centiseconds (e.g. 12.34).

Time in seconds + centiseconds