Career as a coach
| Period | Team | Country | Position | |
|---|---|---|---|---|
| 12/2014 - 06/2017 |  | FC St. Pauli |  Germany | Manager |
| 11/2013 - 06/2014 |  | Oţelul Galaţi |  Romania | Manager |
| 10/2012 - 04/2013 |  | AEK Athen |  Greece | Manager |
| 11/2010 - 06/2011 |  | Arminia Bielefeld | Germany | Manager |
| 07/2010 - 08/2010 |  | Olympiacos FC | Greece | Manager |
| 05/2009 - 06/2010 |  | 1860 Munich | Germany | Manager |
| 07/2006 - 11/2008 |  | Panionios GSS | Greece | Manager |
| 03/2004 - 11/2005 |  | Hannover 96 | Germany | Manager |
| 03/2003 - 09/2003 |  | Bor. Mönchengladbach | Germany | Manager |
| 07/2002 - 01/2003 |  | CD Tenerife |  Spain | Manager |
| 07/1999 - 01/2002 |  | 1. FC Köln | Germany | Manager |
| 07/1997 - 03/1999 |  | Hansa Rostock | Germany | Manager |
| 07/1995 - 06/1997 | | CD Tenerife | Spain | Ass. Coach |
| 03/1993 - 11/1994 |  | MSV Duisburg | Germany | Manager |
| 07/1989 - 03/1993 |  | MSV Duisburg II | Germany | Manager |
Career as a player
| Period | Team | Country | Position | |
|---|---|---|---|---|
| 07/1987 - 06/1992 | | MSV Duisburg | Germany | Forward |
| 07/1983 - 06/1987 | | Bor. Mönchengladbach | Germany | Forward |
| 07/1981 - 06/1983 | | Arminia Bielefeld | Germany | Forward |
| 07/1977 - 06/1981 | | Bor. Mönchengladbach | Germany | Forward |
| 07/1974 - 06/1977 | | Arminia Bielefeld | Germany | Forward |
Club matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Intercontinental Cup | 2 | 1 | 1 | - | 121 | - | - | - | - | - | - | » All matches |
 | Champions League | 6 | 4 | 2 | 2 | 370 | - | - | - | - | - | - | » All matches |
| Europa League | 42 | 39 | 3 | 9 | 3.433 | 8 | - | - | - | - | - | » All matches |
| Bundesliga | 333 | 304 | 29 | 59 | 26.889 | 49 | - | 3 | 19 | - | - | » All matches |
| 2. Bundesliga | 171 | 155 | 16 | 11 | 14.136 | 27 | - | - | 8 | - | 1 | » All matches |
| DFB-Pokal | 54 | 48 | 6 | 6 | 4.730 | 9 | - | - | 1 | - | - | » All matches |
| Relegation Play-offs Bundesliga | 3 | 3 | - | 1 | 266 | 1 | - | - | - | - | - | » All matches |
| Promotion Round 2. Bundesliga | 16 | 16 | - | 3 | 1.405 | 3 | - | - | 1 | - | - | » All matches |
| Total | 627 | 570 | 57 | 91 | 51.350 | 97 | - | - | 29 | - | 1 |