In the lead-off leg in the men's 4 × 200 m freestyle relay final, Scott broke the British national record with a time of 1:44:91; the team finished fifth in the race. In the men's 4 × 100 metre medley relay together with Adam Peaty, James Guy and Luke Greenbank, he swam the anchor leg in 46.14 seconds, the second fastest freestyle relay split of all time, and the fastest in textile. He managed to overcome a 1.11 second deficit to finish in front of the United States team, thereby winning Britain's first gold medal in the event in the World Championships in a European record time of three minutes, 28.10 seconds.
