| Canada Open XD | 2018/06/23 21:30 | Arends J / Piek S v Lamsfuss M / Herttrich I | L | 0-2 |
| Indonesia Masters XD | 2018/04/27 17:00 | Arends J / Piek S v Lamsfuss M / Herttrich I | L | 1-2 |
| Open de Suisse - Doubles Mixtes | 2018/02/23 17:00 | Lamsfuss M / Herttrich I v Arends J / Piek S | L | 2-0 |
| Giraldilla Int. XD | 2018/11/23 17:30 | Mikkelsen M / Surrow M v Arends J / Piek S | W | 1-2 |
| Giraldilla Int. XD | 2018/11/23 10:00 | Eipe J / Poulsen M v Arends J / Piek S | W | 1-2 |
| Giraldilla Int. XD | 2018/11/22 12:00 | Mairs/Warner v Arends J / Piek S | W | 0-2 |
| Denmark Open XD | 2018/10/16 10:00 | Arends J / Piek S v Chan P S / Goh L Y | L | 1-2 |
| Dutch Open XD | 2018/10/13 12:30 | Ellis/Smith v Arends J / Piek S | L | 2-0 |
| Dutch Open XD | 2018/10/12 14:00 | Arends J / Piek S v Mikkelsen M / Surrow M | W | 2-1 |
| Dutch Open XD | 2018/10/11 12:50 | Arends J / Piek S v Paredes / Christ. | W | 2-0 |
| Dutch Open XD | 2018/10/10 12:35 | Arends J / Piek S v Pistorius J / Kaepplein L | W | 2-0 |
| Giraldilla Int. XD | 2018/11/23 18:00 | Seinen C / Tabeling I v Lamsfuss M / Herttrich I | W | 0-2 |
| Giraldilla Int. XD | 2018/11/23 10:00 | Hall/MacPherson v Lamsfuss M / Herttrich I | W | 0-2 |
| Giraldilla Int. XD | 2018/11/22 12:40 | Bitman J / Basova A v Lamsfuss M / Herttrich I | W | 0-2 |
| Giraldilla Int. XD | 2018/11/02 15:40 | Lu K / Chen L v Lamsfuss M / Herttrich I | L | 2-0 |
| Giraldilla Int. XD | 2018/11/01 19:25 | Lang P / Pohl H v Lamsfuss M / Herttrich I | W | 0-2 |
| Giraldilla Int. XD | 2018/10/30 16:30 | Hall/MacPherson v Lamsfuss M / Herttrich I | W | 1-2 |
| Open de France - Doubles Mixtes | 2018/10/24 13:00 | Goh/Lai v Lamsfuss M / Herttrich I | L | 2-1 |
| Open d'Angleterre | 2018/10/18 14:23 | Ahmad T / Natsir L v Lamsfuss M / Herttrich I | L | 2-1 |