| 10009 | 2 | 5000 | freestyle | male | (11) t/m (-1) | No | 2023-06-03 | Flanders Open Water Cup | 11 | 17 | male |
| 10014 | 7 | 1000 | freestyle | male | (16) t/m (24) | No | 2023-06-03 | Flanders Open Water Cup | 11 | 17 | male |
| 9904 | 1 | 3000 | freestyle | male | (12) t/m (-1) | No | 2023-06-11 | Speedo Swim-in | 11 | 17 | male |
| 9917 | 14 | 1000 | freestyle | male | (16) t/m (-1) | No | 2023-06-11 | Speedo Swim-in | 11 | 17 | male |
| 10027 | 1 | 1000 | freestyle | male | (14) t/m (-1) | No | 2023-06-18 | Open water Lage vaart race | 16 | 17 | male |
| 10030 | 17 | 3000 | freestyle | male | (16) t/m (-1) | No | 2023-06-18 | Open water Lage vaart race | 11 | 17 | male |
| 9950 | 5 | 2000 | freestyle | male | (12) t/m (-1) | No | 2023-07-01 | Marina Beach Langebaan wedstrijd 20 | 16 | 17 | male |
| 9954 | 9 | 1000 | freestyle | male | (12) t/m (-1) | No | 2023-07-01 | Marina Beach Langebaan wedstrijd 20 | 16 | 17 | male |
| 9986 | 1 | 1000 | freestyle | male | (12) t/m (-1) | No | 2023-07-02 | Open Water Wedstrijd Zeeuwsch-Vlaan | 16 | 17 | male |
| 9994 | 7 | 5000 | freestyle | male | (11) t/m (-1) | No | 2023-07-02 | Open Water Wedstrijd Zeeuwsch-Vlaan | 11 | 17 | male |
| 10004 | 15 | 2000 | freestyle | male | (12) t/m (-1) | No | 2023-07-02 | Open Water Wedstrijd Zeeuwsch-Vlaan | 16 | 17 | male |
| 10053 | 14 | 3000 | freestyle | male | (11) t/m (-1) | No | 2023-07-08 | Open Water Wedstrijd | 11 | 17 | male |
| 10060 | 21 | 1000 | freestyle | male | (11) t/m (-1) | No | 2023-07-08 | Open Water Wedstrijd | 11 | 17 | male |
| 9898 | 1 | 6000 | freestyle | male | (14) t/m (-1) | No | 2023-07-09 | 25-ste Zwemwedstrijd Beusichem - Cu | 11 | 17 | male |
| 9902 | 5 | 2000 | freestyle | male | (16) t/m (-1) | No | 2023-07-09 | 25-ste Zwemwedstrijd Beusichem - Cu | 11 | 17 | male |
| 9925 | 1 | 4000 | freestyle | male | (11) t/m (-1) | No | 2023-07-15 | 53e ZOGGS De Bosbaan Amsterdam | 11 | 17 | male |
| 9940 | 16 | 1000 | freestyle | male | (11) t/m (-1) | No | 2023-07-15 | 53e ZOGGS De Bosbaan Amsterdam | 16 | 17 | male |
| 10064 | 1 | 7000 | freestyle | male | (14) t/m (-1) | No | 2023-07-16 | Pájaro ICT - Het Y Open Water Wedst | 11 | 17 | male |
| 10085 | 22 | 2000 | freestyle | male | (13) t/m (-1) | No | 2023-07-16 | Pájaro ICT - Het Y Open Water Wedst | 11 | 17 | male |
| 10161 | 1 | 5000 | freestyle | male | (14) t/m (-1) | No | 2023-08-12 | Openwater MZK | 11 | 17 | male |
| 10174 | 14 | 2000 | freestyle | male | (16) t/m (24) | No | 2023-08-12 | Openwater MZK | 11 | 17 | male |
| 10176 | 1 | 5000 | freestyle | male | (14) t/m (-1) | No | 2023-08-15 | Open Water wedstrijd De Ster | 11 | 17 | male |
| 10190 | 15 | 2000 | freestyle | male | (16) t/m (24) | No | 2023-08-15 | Open Water wedstrijd De Ster | 11 | 17 | male |
| 10205 | 1 | 3000 | freestyle | male | (11) t/m (-1) | No | 2023-08-19 | Heerjansdam Challenge | 11 | 17 | male |
| 10200 | 12 | 1000 | freestyle | male | (11) t/m (-1) | No | 2023-08-19 | Heerjansdam Challenge | 11 | 17 | male |
| 10216 | 1 | 10000 | freestyle | male | (14) t/m (-1) | No | 2023-08-26 | 38ste VWZ Openwater weekend | 11 | 17 | male |
| 10221 | 6 | 5000 | freestyle | male | (14) t/m (-1) | No | 2023-08-27 | 38ste VWZ Openwater weekend | 11 | 17 | male |
| 10230 | 15 | 2000 | freestyle | male | (16) t/m (34) | No | 2023-08-27 | 38ste VWZ Openwater weekend | 11 | 17 | male |
| 10095 | 7 | 2000 | freestyle | male | (12) t/m (-1) | No | 2023-09-02 | Ganzetrek & Kanaalrace | 11 | 17 | male |
| 10097 | 9 | 1000 | freestyle | male | (12) t/m (-1) | No | 2023-09-02 | Ganzetrek & Kanaalrace | 16 | 17 | male |
| 10105 | 17 | 1000 | freestyle | male | (12) t/m (-1) | No | 2023-09-03 | Ganzetrek & Kanaalrace | 16 | 17 | male |
| 10119 | 31 | 3000 | freestyle | male | (12) t/m (-1) | No | 2023-09-03 | Ganzetrek & Kanaalrace | 11 | 17 | male |
| 10121 | 1 | 10000 | freestyle | male | (11) t/m (-1) | Yes | 2023-09-08 | ONK Open Water Zwemmen & Biesbosch | 11 | 17 | male |
| 10129 | 9 | 5000 | freestyle | male | (11) t/m (-1) | Yes | 2023-09-09 | ONK Open Water Zwemmen & Biesbosch | 11 | 17 | male |
| 10137 | 17 | 1000 | freestyle | male | (12) t/m (-1) | No | 2023-09-09 | ONK Open Water Zwemmen & Biesbosch | 11 | 17 | male |