2012 Summer Olympics in the programme for the first time, and 36 women competed in three weight classes. There was a special dispensation for the shooting events, which would otherwise have been illegal under UK gun law. In tennis, mixed doubles returned to the Olympic programme for the first time since 1924. London's bid featured the same 28 sports that had been included in other recent Summer Olympics, but the IOC voted to drop baseball and softball from the 2012 Games just two days after London had been selected as the host city. There was an appeal, but the IOC voted to uphold
Guadalajara bid for the 2018 Summer Youth Olympics Guadalajara bid for the 2018 Summer Youth Olympics Guadalajara 2018 was a bid by the city of Guadalajara and the Comité Olímpico Mexicano to host the 2018 Summer Youth Olympics. On February 16, 2012, Guadalajara's bid was selected over Monterrey's bid to bid to host the 2018 Summer Youth Olympics by an inner voting from the Mexico National Olympic Committee It was reported in August 2012 that the bid may be in danger due to the debt created by the 2011 Pan American Games. Guadalajara failed to become a Candidate City for the games when the IOC selected the Candidate