For races 400 m, 800 m, or 1500 m in length, only heats and finals were held. For the 400 m events (both individual and relay), heats and finals were held on the same day.
In races of 400 meters, 800 meters, or 1500 meters, only heats and finals were organized. For the 400-meter events (whether individual or relay), heats and finals occurred on the same day.