Ben Proud has set a new short course British record in the 50 metres freestyle.
The 21-year-old Plymouth Leander swimmer touched in 20.74 seconds at the ASA National Swimming Championships in Sheffield, beating the previous best mark set by Mark Foster in 2001 by 0.39 secs.
Proud is now the British record-holder in the 50m freestyle in both long course and short course swimming.
The double Commonwealth Games gold-medallist told swimming.org: "As soon as I nailed my turn, I knew it was going to be a fast swim but I didn't think it would be sub 21 seconds."
The opening day of the event in Sheffield also saw new British records set in the 100m backstroke by Lizzie Simmonds (56.35s) and the 50m breaststroke by Imogen Clark (30.02).