Mirroring the Olympic athletics programme, both men and women had very similar schedules of events. Men competed in 24 events and women in 23, as their schedule lacks the 50 km race walk. In addition, both the men's 110 m hurdles and decathlon are reflected in the women's schedule by the 100 m hurdles and heptathlon, respectively.
As they had done in the 2007 edition, Cuba topped the athletics medal table, taking 18 gold medals and 33 medals in total. The Brazilian team were a clear second with ten golds and 23 medals overall. The hosts Mexico and the United States both won four events each, while Colombia had the third greatest medal haul with seventeen altogether.
† : The original long jump winner was Víctor Castillo of Venezuela, but a positive drug test for methylhexaneamine meant he was stripped of his title and given a lifetime ban.[2]
A total of 668 athletes from 39 countries were entered in the athletics competition.[3] A maximum of two participants were allowed per country for each individual event. Nations were able to enter one competitor who had not achieved the minimum standard performance. To register a second competitor, both athletes needed to have achieved the minimum standard performance.[1]