| Rondenlijst van Jan van Leeuwen | ||||||||
| Ronde | Datum | Tegenstander | Kleur | Score | Punten | WP | SB | Rating |
| 1 | 24-04-2023 | Ruud Sneller | W | 0,5 | 1,0 | 8,0 | 4,00 | 1436 |
| 2 | 01-05-2023 | Bert Burggraaff | W | 0,0 | 0,0 | 14,0 | 0,00 | 1435 |
| 3 | 08-05-2023 | Kock Versteeg | Z | 0,0 | 0,0 | 8,0 | 0,00 | 1429 |
| 4 | 15-05-2023 | Kees van Rooijen | Z | 1,0 | 2,0 | 10,0 | 10,00 | 1440 |
| 5 | 22-05-2023 | Bram van Vliet | Z | 0,0 | 0,0 | 9,0 | 0,00 | 1428 |
| 6 | 29-05-2023 | oneven | 1,5 | 5,0 | 2,50 | |||
| 7 | 05-06-2023 | Nico Warner | W | 1,0 | 2,0 | 1,0 | 1,00 | 1436 |
| Totaal | 6,5 | 55,0 | 17,50 | |||||