Tunip is correct - the IOC makes special slots available for countries where no one meets qualifying standards.
www.hrw.org/news/2012/02/15/iocsaudi-arabia-end-ban-women-sport
I think the above answers your query Edith.
As actually did the original article I linked, where woman were allowed to take part in a marathon as long as they wore an abaya. Like you are really going to post a good time running 26 miles in bloody abaya. Might as well have nailed one foot to the floor. Bastards.
And if anyone thinks Saudi women are not trying to change things try this link
nanyang.academia.edu/JamesMDorsey/Papers/836698/Saudi_women_campaign_for_recognition_of_right_to_play_soccer
Unfortunately though the leader is still having to creep and grovel to the country's dinosaur males to try and make a modest beginning e.g. "Everything of course will be according to religious rules, modesty and accepted social customs in the kingdom."
And how about this for the views of forward thinking male clerics.."Some clerics condemn women?s sports as corrupting and satanic and charge that it spreads decadence. They warn that running and jumping can damage a woman's hymen and ruin her chances of getting married."
To which I can only wonder what sort of woman would want to go within a mile of disgusting men like that? 