Following on from sashh's post parity in the Olympics comes in many forms, not just the number or type of events offered for both men and women.
Synchronised swimming and rhythmic gymnastics are offered to women only. This is not because of exclusionary tactics on the part of women.
In canoeing, swimming, cycling, shooting and athletics there are events in which women compete over lesser distances than men. No idea why that would be.
There are also big discrepencies in the maximum number of competitors in certain sports. Football being a big one. So although 18 men/women are allowed per nation, there are less female teams allowed to compete. Cycling, rowing, canoeing, shooting, sailing are others. I probably needn't say that of course men are allowed a greater number of competitors in each event than women.
There are still more medal opportunities for men. And if a nation were to send a full team there would still be more men than women.
Not only that there are more male than female coaches/staff.
Women have to fight for every concession they are given. They have to be "allowed" to compete at the Olympics. Their existence has to be justified. Men don't. So begrudging a women-only space for a running event for charity is churlish in the very least and referring back to my post on Wed 30-Apr-14 16:59:15, you need to think about your boundaries and other people's. Men don't have to be the centre of everything. Really they don't.