| Poland Junior Champs | 2018/10/28 14:00 | Trefl Gdansk SA I U20 v UKS Piast Kobylnica U20 | W | 3-0 |
| Poland Junior Champs | 2018/10/14 13:00 | Trefl Gdansk SA I U20 v Trefl Gdansk SA II U20 | W | 3-0 |
| Club Friendlies | 2018/09/14 07:00 | Trefl Gdansk SA I U20 v SOS Gdansk U20 | W | 2-0 |
| Poland Junior Champs | 2018/04/12 10:18 | Metro Warszawa U20 v Trefl Gdansk SA I U20 | L | 3-0 |
| Poland Junior Champs | 2018/04/11 10:21 | Trefl Gdansk SA I U20 v Rzeszow U20 | L | 1-3 |
| International Junior Games | 2018/10/04 12:00 | Jastrzebski Wegiel U20 v Trencin U20 | L | 1-3 |
| International Junior Games | 2018/10/03 17:30 | Jastrzebski Wegiel U20 v Norway U20 | W | 3-2 |
| Club Friendlies | 2018/10/03 10:30 | Jastrzebski Wegiel U20 v Trencin U20 | W | 3-0 |
| International Junior Games | 2018/10/02 13:42 | Jastrzebski Wegiel U20 v VK Ostrava U20 | W | 3-2 |