The Olympics today compared to the ancient Olympics are similar in some aspects. Both were celebrated every four years, and some of the competitions are the same as nowadays.
There is a big difference regarding woman/females. The difference is that for the ancient Olympics married woman were forbidden to attend, and unmarried woman were able to participate at the Hera festival.
Our modern Games and the Ancient Olympics are different in many respects – today's Olympics are strictly secular, whilst the Ancient Olympics were steeped in religion; our modern Games have 42 disciplines, compared to the six of the Classical world; today, men and women of all nationalities are invited to compete, ...