Kristl graduated in his playing days as a football player for the 1st FC Nuremberg and 1.FC Saarbrücken total of 71 league games in which he was able to achieve 11 goals. In 1994, he had to end his career due to injury. Three years later, Kristl began working as a trainer for the county division club FC Schnaittach, whom he led to the division. January 3, 2006, he began working as an assistant coach on the Bundesliga Hannover 96. When the club terminated the contract with Peter Neururer, and the contract was terminated with Kristl. In April 2007, Kristl began to work for the relegation-threatened FC Amberg. After the season he left the FC Amberg, but returned in April 2008 back to him. For the 2008/09 season he was coach his home club SSV Jahn Regensburg, who separated because of sporting failure by him on 24 November 2008.
On 11 July 2009, Kristl new co- coach of the Austrian Bundesliga SK Sturm Graz. On 25 May 2011 he was appointed as an assistant coach with the Austrian Bundesliga SK Sturm Graz champion. On April 14, 2012 Kristl sat for the first time as interim coach in place of a few days earlier on leave chief coach Franco Foda on the bench.
For the 2012/13 season Kristl assistant coach Franco Foda the 1st FC Kaiserslautern and 29 August 2013 were fdreigestellt together with Foda.
- Football Player ( Germany )
- Football coach ( Germany )
- Born in 1963
- Football coach (SK Sturm Graz )