( CNN ) -- Bo Van Pelt edged out Jason Dufner to win an all-American battle at the Perth International Sunday and claim his first victory of the season . The pair had dominated the latter stages of European Tour event with Van Pelt keeping his nerve to record a final round 68 for 16-under 272 . Dufner , playing his first event since being on the losing United States team at the Ryder Cup , had started the last round at Lake Karrinyup one shot adrift of his compatriot , but closed with a 69 for 274 . Van Pelt showed signs of nerves by missing short putts on the 14th and 17th but had sufficient buffer to protect his advantage . `` Jason and I had a great battle and played well , '' Van Pelt told the official European Tour website . `` It definitely got tight there at the end but luckily for me I came out on top . `` I have a lot of respect for Jason and his game -- he 's a world class player and I knew it was going to be tough today , '' he added . World No.10 Dufner was pleased with his efforts in Australia . `` It 's been a good trip , '' he said . `` It 's good to get back out and compete and nice to be in the hunt after a couple weeks off and after the Ryder Cup . Nothing to be ashamed of , just got to tighten up a couple things . '' Spaniard Alejandro Canizares shot 68 in the final round to come through to take third on 11 under , with . New Zealand 's Michael Hendry in fourth on nine under . England 's Paul Casey had his first top-10 finish of the year on the European Tour as he tied for fifth with four other players . They included halfway leader Emiliano Grillo of Argentina , who faded to a three-over 74 on the last day . Van Pelt picked up a check for $ 333,000 for his victory in the richest tournament in Australia .
Paul Casey wins Perth International after final round 68 . He finishes two clear of fellow all-American Paul Casey . First victory of 68 for Van Pelt . Paul Casey shows improved form tied for First .