JAZZ Carlin was unable to add to her 800m freestyle silver medal at the World Short Course Championships in Doha this evening.

The former Swindon Tigershark finished sixth in the final of the 400m final in a time of four minutes and 2.32 seconds – 6.56 seconds behind winner Mireya Belmonte Garcia from Spain.

The double Commonwealth Games medallist had qualified fifth fastest the final from the morning heats with a time of 4:01.37.