| Regionalliga West 2009/2010 - Appearances as Referee |  |
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| 27/11/2009 | 1. FC Köln II | - | 1. FC Saarbrücken | 1:3 | 4 | 1 | - |
| 28/03/2010 | Wormatia Worms | - | Preußen Münster | 0:1 | 3 | 1 | - |
| 03/04/2010 | 1. FSV Mainz 05 II | - | SC Verl | 0:0 | 1 | - | - |
| Regionalliga West 2009/2010 - Appearances as Referee | |
|
|
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| 27/11/2009 | 1. FC Köln II | - | 1. FC Saarbrücken | 1:3 | 4 | 1 | - |
| 28/03/2010 | Wormatia Worms | - | Preußen Münster | 0:1 | 3 | 1 | - |
| 03/04/2010 | 1. FSV Mainz 05 II | - | SC Verl | 0:0 | 1 | - | - |
| Complete name: | Lothar Ostheimer |
| Born: | 17/08/1983 |
| Place of birth: |
Germany |
| Residence: | Pfaffenhofen an der Ilm |
| Nationality: |
Germany |