Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 02/2021 |  | Birkan Çelik | MF |  | TSV Schott Mainz U19 | U19 |
| 02/2021 | | Tom Zimmer | MF | | TSV Schott Mainz U19 | U19 |
| 01/2021 | | Saher Bhatti | DF |  | TSG Pfeddersheim | TSG Pfeddersh. |
| 09/2020 | | Nils Lihsek | MF | |||
| 07/2020 | | Silas Schwarz | MF |  | Waldhof Mannheim | Waldhof Mannh. |
| 07/2020 | | Max Hinke | GK |  | Eintracht Frankfurt U19 | Frankfurt U19 |
| 07/2020 | | Felix Pohlenz | GK | |||
| 07/2020 | | Dominik Ahlbach | DF |  | Rot-Weiß Koblenz | RW Koblenz |
| 07/2020 | | Luca Baderschneider | DF | |||
| 07/2020 | | Justin Haydn | DF | |||
| 07/2020 | | Nicolas Obas | DF |  | SV Gonsenheim | SV Gonsenheim |
| 07/2020 | | Tolga Demirbaş | MF |  | 1. FSV Mainz 05 II | Mainz 05 II |
| 07/2020 | | Etienne Portmann | MF |  | 1. FC Kaiserslautern II | K'lautern II |
| 07/2020 |  | Kennet Hanner López | FW |  | TSG Hoffenheim II | Hoffenheim II |
| 07/2020 | | Leon Walter | FW | |||
| 07/2020 |  | Radoslav Radev | AT-C | |||
| 07/2020 |  | Nenad Simic | AT-C |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 01/2021 | | Luca Baderschneider | DF |  | SC 07 Idar-Oberstein | Idar-Oberst. |
| 07/2020 | | Robin Balters | GK | | TSG Hoffenheim II | Hoffenheim II |
| 07/2020 |  | Issaka Mouhaman | MF |  | Hessen Dreieich | Hessen Dreieich |
| 07/2020 |  | Ali Bülbül | FW | | TSG Pfeddersheim | TSG Pfeddersh. |
| 07/2020 |  | Dennis de Sousa Oelsner | FW |  | SV Lippstadt 08 | Lippstadt 08 |