Slingsby's first successes came sailing Laser dinghies, where he won three consecutive world championships and the 2012 Olympic gold medal.

2010 – Won the Etchells Class World Championship as crew with Andrew Palfry, with fellow America's Cup legend John Bertrand helming.

[4] 2012 – Won the Australian Institute of Sport Athlete of the Year Award with swimmer Alicia Coutts.

2019 – Won the inaugural SailGP skippering the Australian Team sailing F50 foiling catamarans.

2022 – Won Australian Sailing Male Sailor of the Year Award In December 2013 Slingsby was a crew member aboard racing supermaxi yacht Perpetual Loyal in the 2013 Sydney to Hobart Yacht Race, with his other celebrity crew members, Karl Stefanovic, Larry Emdur, Phil Waugh, Jude Bolton and Guillaume Brahimi.