Russian athletes are currently suspended from international track and field events because of the failures in the country's anti-doping program. World news from the BBC.
Mary Lou says, " This schedule says that the track and field events begin tomorrow." An " event" is an individual competition within a larger sports competition.
Race walkers are conditioned athletes who compete in events such as the 50-kilometer race walk, which is the longest track and field event at the Summer Olympics, exceeding the distance of a marathon by about five miles.