[2] In 2003 Timmer returned to AZ for three more solid seasons, being essential as the club finished runner-up in the 2006 league and the following year's domestic cup.

[3] Timmer retired from the game at almost 38, after helping Feyenoord to the seventh place in 2008–09 campaign, having appeared in 513 matches as a professional – only in the league.

However, in March 2010, as SC Heerenveen had all three first-team goalkeepers on the injured list, he went on trial with the club and signed a contract until the end of the season, contributing with nine games to an eventual 11th place-finish, and retiring for good in June.

[4] Somewhat of a late bloomer in the Dutch national side, Timmer did not get his first call-up until February 2005, being summoned by Marco van Basten for an exhibition game with England in Birmingham.

[citation needed] Timmer won seven caps for his country but never in official games, representing the nation at the 2006 FIFA World Cup and UEFA Euro 2008.