Career
He is the record holder for most games played for Eintracht Braunschweig, where he spent his whole professional career. After playing youth and amateur football for his hometown club Music Television Dettum and Hamburger SV Amateure, Merkhoffer joined Bundesliga side Eintracht Braunschweig in 1968. In Braunschweig he played 419 games in the Bundesliga between 1968 and 1983, becoming a mainstay in the club"s defense for almost 16 years.
After retiring from football in 1984, Merkhoffer went into horse breeding.