At the 2012 Summer Olympics in London, Ostling competed for the second time as a crew member in the men's 470 class by finishing eleventh and receiving a berth from the ISAF World Championships in Perth, Western Australia.
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Ostling made his official debut at the 2008 Summer Olympics in Beijing, where he paired up with skipper Anton Dahlberg in the men's 470 class.
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Dahlberg made his official debut at the 2008 Summer Olympics in Beijing, where he paired up with crew member Sebastian Östling in the men's 470 class.