Assistance Barging Beating the gun Bell Bend Boxed in Dip finish Direction of running Doping False start Finish line Footwear Heats IAAF Lanes Lap scorer Marksmen Number cards Obstruction Pacesetter Pain barrier Photo finish Rest time between heats Revolver Sex test Sitting in Spiked Starter Starting blocks Starting orders Stations Surging Tartan tracks Ties Timekeepers Timing Track Track Events Wind assisted