| Polish Open | 2020/03/12 14:00 | Matthew Lehmann v Jaroslaw Tomicki | L | 0-3 |
| Polish Open | 2020/03/11 14:20 | Matthew Lehmann v Rafael Turrini | L | 1-3 |
| Czech Republic First League | 2020/03/08 10:58 | Matej Stach v Matthew Lehmann | L | 3-2 |
| Czech Republic First League | 2020/03/08 10:15 | Vojtech Klimek v Matthew Lehmann | L | 3-2 |
| Czech Republic First League | 2020/02/23 11:23 | Matthew Lehmann v Tomas Koldas | L | 2-3 |
| Czech Republic First League | 2020/01/25 10:47 | Lukas Boruvka v Matthew Lehmann | W | 0-3 |
| North American Open | 2019/12/05 21:55 | Beixun Zeng v Matthew Lehmann | L | 4-0 |
| Czech Republic First League | 2019/11/24 09:40 | Matthew Lehmann v Marek Obeslo | L | 2-3 |