Career
He currently plays for SV Sandhausen. After spending three seasons with Bayer 04 Leverkusen"s reserve team early in his career, Kratz joined Alemannia Aachen in the 2. Bundesliga. After Aachen was relegated from the 2.
Bundesliga at the end of the 2011-2012 season, he transferred to Eintracht Braunschweig.
After the 2013-2014 Bundesliga season, Kratz transferred to SV Sandhausen.
