 He played some on the Nationwide Tour in his forties to prepare himself for the Champions Tour.The biggest win of his career was his first on the Champions Tour, and came in a major – The 2004 Senior British Open played at Royal Portrush Golf Club in Northern Ireland.Oakley sank a 10-foot par putt on the final hole to win by one stroke and avoid a playoff with Tom Kite and Eduardo Romero.