Ashley Smith kicked a penalty to keep the Dragons in touch, but a try from replacement flanker Ross Cridland midway through the second half gave the Ospreys their first points of the campaign. Gwyn was outstanding for the Ospreys, who used their driving line out to good effect, whilst home centre Jonathan Spratt and Lewis, for the Dragons, were the pick behind.
The Scarlets maintained their winning start to the season with a 30-26 victory over the Blues at Abercynon. Having beaten the Ospreys first time out, they came from behind in the closing minutes to make it two in two.
Bradley Davies bagged a couple of tries for the Blues with Tom Isaacs and Rhys Gill weighijng in with one apiece. Jamie Roberts and Kristian Baller (2) added conversions but the Scarledts were too strong in the end. Rhys Priestland scored a try and added five points with the boot, whilst wing Alec Jenkins, Martin Thomas, Iwan Taffetsausser and no.8 Lee Williams scored the visitors' tries as they edged the verdict.