| European Championships | 04/11 09:20 | - | Mark Caljouw v Anders Antonsen | L | 0-2 | |
| European Championships | 04/10 18:30 | - | Mark Caljouw v Matthias Kicklitz | W | 2-0 | |
| European Championships | 04/08 14:40 | - | Bruno Carvalho v Mark Caljouw | W | 0-2 | |
| Spain Masters | 03/27 12:05 | 5 | Toma Junior Popov v Mark Caljouw | L | 2-0 | |
| Swiss Open Qual | 03/19 14:10 | - | Yushi Tanaka v Mark Caljouw | L | 2-0 | |
| Swiss Open Qual | 03/19 10:50 | 4 | Danylo Bosniuk v Mark Caljouw | W | 0-2 | |
| Swiss Open Qual | 03/19 10:00 | 4 | Jan Louda v Mark Caljouw | - | Cancelled | |
| Orleans Masters | 03/13 17:00 | 5 | Mark Caljouw v Yushi Tanaka | L | 1-2 | |
| German Open | 02/28 15:15 | 5 | Tien Chen Chou v Mark Caljouw | L | 2-1 | |
| European Team Championships | 02/16 09:00 | - | Mark Caljouw v Harry Huang | W | 2-0 | |
| European Team Championships | 02/15 09:00 | - | Toma Junior Popov v Mark Caljouw | L | 2-0 | |
| Thailand Masters | 02/03 08:05 | 2 | Mark Caljouw v Tien Chen Chou | L | 0-2 | |
| Thailand Masters | 02/02 06:00 | 3 | Mark Caljouw v Mithun Manjunath | W | 2-0 | |
| Thailand Masters | 02/01 06:00 | 4 | Mark Caljouw v June Wei Cheam | W | 2-0 | |
| Thailand Masters | 01/31 02:55 | 5 | Alwi Farhan v Mark Caljouw | W | 0-2 | |
| Indonesian Masters Qual | 01/23 03:40 | 4 | Alex Lanier v Mark Caljouw | L | 2-1 | |
| Welsh Int. | 11/30 10:45 | - | Matthias Kicklitz v Mark Caljouw | L | 2-0 | |
| Irish Open | 11/17 17:00 | - | Alex Lanier v Mark Caljouw | L | 2-1 | |
| Irish Open | 11/17 10:20 | - | Fabian Roth v Mark Caljouw | W | 0-2 | |
| Irish Open | 11/16 20:20 | - | Filip Karlborg v Mark Caljouw | W | 0-2 | |
| Irish Open | 11/16 11:40 | - | Wolfgang Gnedt v Mark Caljouw | W | 0-2 | |
| Hylo Open | 11/02 13:05 | 4 | Mark Caljouw v Nhat Nguyen | L | 0-2 | |
| Hylo Open | 11/01 11:35 | 5 | Kantaphon Wangcharoen v Mark Caljouw | W | 1-2 | |
| French Open | 10/25 13:05 | 5 | Mark Caljouw v Tze Yong Ng | L | 0-2 | |
| Abu Dhabi Masters | 10/22 13:20 | 1 | Mark Caljouw v Mads Christophersen | L | 0-2 | |
| Abu Dhabi Masters | 10/21 11:35 | 2 | Kiran George v Mark Caljouw | W | 0-2 | |
| Abu Dhabi Masters | 10/20 11:20 | 3 | S.K. Karunakaran v Mark Caljouw | W | 1-2 | |
| Abu Dhabi Masters | 10/19 11:50 | 4 | Mark Caljouw v Vishal Vasudevan | W | 2-1 | |
| Abu Dhabi Masters | 10/18 13:40 | 5 | Mark Caljouw v Korakrit Laotrakul | W | 2-0 | |
| Dutch Open | 10/12 14:20 | - | Mark Caljouw v Danylo Bosniuk | L | 0-2 |