| 2020-12-11 |  Hold On @ Optimacy @ 2020-12-11 | 1 | House | Rudi Simon, Martin Oet - Hold On (Original Mix)2:41 | |
| 2020-05-08 |  Little Did You Know @ Optimacy @ 2020-05-08 | 1 | Progressive House | Rudi Simon, Martin Oet - Little Did You Know (Original Mix)2:57 | |
| 2020-05-08 | Little Did You Know @ Optimacy @ 2020-05-08 | 2 | Progressive House | Rudi Simon, Martin Oet - Little Did You Know (Extended Mix)4:29 | |
| 2019-12-13 |  Overcome @ Optimacy @ 2019-12-13 | 1 | Dance / Pop | Rudi Simon, Martin Oet - Overcome (Original Mix)2:57 | |