After showing promise as a freestyle and butterfly swimmer, Jak Scott made his first European Junior team in the former, reaching the 100m Free semi finals at the 2009 Championships in Prague.
The following season, Scott earned his first senior international call-up for Scotland to the 2010 Commonwealth Games in Delhi where he helped the 4x200m Freestyle Relay quartet to silver.
In 2011, he made his international debut for the British team, competing in both heats and finals as the GB 4x200m Freestyle Relay quartet finished sixth at the World Championships in Shanghai.
While he narrowly missed out on a relay spot for London 2012, Scott bounced back in 2013 and competed in his second World Championship final, finishing eighth with the 4x200m Freestyle Relay quartet in Barcelona.
In 2014, he qualified for his second Commonwealth Games and swam for Scotland in the prelims of both the 4x100m Freestyle and 4x200m Freestyle Relays.