Competing in the Under 23 World Championships in the men's eight in 2010, Josh Booth made his senior international debut for Australia. He competed with the senior team at two World Championship campaigns, finishing seventh in the four in 2010 and fourth in the eight in 2011.
Booth, of Victoria, competed at his first Olympic Games in London 2012 in the men’s eight. The Australian’s finished second in their heat before going on to earn themselves a spot in the 2012 Olympic final with a fourth place finish in the repechage. The crew went on to finish sixth in a strong field, 3.12 seconds behind gold medallists Germany.