Competitors in athletics events could qualify for the next round of competition in two ways. Qualifying by right involved ranking high enough in their heat, and qualifying by result meant ranking high enough in overall standings. Ranks shown are therefore those within each heat, not in overall standings.
Key
Note–Ranks given for track events are within the athlete's heat only
Q = Qualified for the next round
q = Qualified for the next round as a fastest loser or, in field events, by position without achieving the qualifying target
Afghanistan did not participate in 1976 due to a boycott, in 1984 due to a boycott and was barred from the 2000 Summer Olympics to its discrimination against women under the rule of the Taliban.