Athletics at the Summer Olympics includes contests.
The modern program includes track and field events , road running events , and racewalking events.
Track and field is a sport which includes athletic contests established on the skills of running , jumping , and throwing.
There are two racewalking distances contested at the Summer Olympics : the 20 kilometres race walk -LRB- men and women -RRB- and 50 kilometres race walk -LRB- men only -RRB-.
