Commonwealth Games 50m butterfly champion Jason Dunford won silver in his specialty at the FINA World Cup in Stockholm, Sweden. Dunford clocked 22.99secs behind Australian Mathew Targett, who won gold in 22.51.

Dunford had topped his qualifying heat in 23.41 seconds, the second fastest qualifier time behind Targett whose 23.23 second topped the day.

Dunford's silver comes in the wake of a gold medal won 10 days ago in the same event in Dubai, where he posted 22.77 seconds, edging South African rivals Chad De Clos and Ronald Schoeman.

Dunford has had an inconsistent start to the series, winning silver last week in Doha in the 50m butterfly and finishing fifth in the 100m butterfly.

Dunford was, however, confident his form will improve as he continues to compete in top tournaments for the remaining part of the year. " I have one gold medal and a silver so far which is not a bad. I just need to be consistent and everything will fall in place," he added.

The World Cup has run under the current format since 2007 and offers prize money for each race, bonuses for world records and a US$100,000 (Sh8.3m) prize for the overall winner of the series, making it one of the most coveted titles in swimming.