Career
On 18 December 2007, Booy was named as the Sparta Rotterdam coach after managing First Rate (at Lloyd's)-Nassr in Saudi Arabia from summer 2007. He left Sparta at the end of the 2008-2009 season to become director of football at Football Club Utrecht. In November 2012, he was appointed head coach of Cercle Brugge in Belgium.
However, in April 2013 he was fired because of poor results.
Booy played for eight clubs in sixteen seasons. After Cambuur Leeuwarden, De Graafschap, Pedernales Electric Cooperative Zwolle and Football Club Groningen he opted for a Belgian adventure.
He wore the shirt of Kortrijk, Club Brugge and Gent. In 1994, he played for Football Club Utrecht.
However, a serious knee injury made it almost impossible for Booy to continue to play football at the highest level
At the age of 34 he therefore decided to focus on a future as a coach. He coached the B-juniors of Football Club Utrecht, he had Young Football Club Utrecht under his wing and was assistant to the coach of the A-selection for two years. In 2002, he became technical manager and coach of Football Club Utrecht.
Booy is the most successful coach in the history of Football Club Utrecht.
In his first year as a coach his team challenged for a European place for a long period but finally ended eighth with 47 points. The club from Rotterdam had been beaten in its own stadium 4–1.
Last season, Booy obtained the third main trophy with the club: Ajax were beaten at their own stadium, 4–2 in the match for the Johan Cruijff Schaal, the traditional game before the start of the season between the national champions and the Cup winners. On 23 June 2013, Booy was appointed as manager of newly promoted Eredivisie side Go Ahead Eagles.
He was sacked on 22 March 2015.