Career
O'Shea first qualified for the World Professional Darts Championship in 1984, beating Alex MacKinnon in the first round before losing to John Lowe in the second round. O'Shea also played in the Winmau World Masters four times, making his debut in 1982 and beat Kevin Mullaney in the first round before losing to Eric Bristow. He played again in the tournament in 1983, 1984 and 1991, losing in the first round each time.