| Rondenlijst van Jan van Leeuwen | |||||||
| Ronde | Datum | Tegenstander | Kleur | Score | Punten | Rating | Rating ext. tgnst. |
| 1 | 10-09-2019 | Roddy Mackenzie | W | 0,0 | 0,0 | 1419 | |
| 2 | 17-09-2019 | Kees Lugthart | Z | 0,0 | 0,0 | 1411 | |
| 3 | 24-09-2019 | Bert Scholten | W | 1,0 | 40,0 | 1417 | |
| 4 | 01-10-2019 | Kock Versteeg | Z | 0,5 | 24,0 | 1422 | |
| 5 | 08-10-2019 | afgezegd | 13,7 | ||||
| 6 | 15-10-2019 | Nico Warner | W | 0,5 | 23,0 | 1419 | |
| 7 | 22-10-2019 | Arie de Groot | Z | 1,0 | 43,0 | 1426 | |
| 8 | 29-10-2019 | Roddy Mackenzie | Z | 0,0 | 0,0 | 1416 | |
| 9 | 05-11-2019 | Ruud Sneller | W | 1,0 | 44,0 | 1422 | |
| 10 | 12-11-2019 | Kock Versteeg | W | 0,5 | 24,0 | 1427 | |
| 11 | 19-11-2019 | Kees van Rooijen | Z | 0,0 | 0,0 | 1419 | |
| 12 | 26-11-2019 | Piet Boere | W | 1,0 | 38,0 | 1422 | |
| 13 | 03-12-2019 | extern | Z | 0,0 | 27,3 | 1422 | |
| 14 | 10-12-2019 | Klaas Veldhuijsen | W | 0,0 | 0,0 | 1421 | |
| 15 | 17-12-2019 | Arie de Groot | W | 0,5 | 21,5 | 1417 | |
| 16 | 24-12-2019 | oneven | 27,3 | ||||
| 17 | 31-12-2019 | Roddy Mackenzie | W | 0,5 | 21,0 | 1418 | |
| 18 | 21-01-2020 | Nico Warner | Z | 0,0 | 0,0 | 1406 | |
| 19 | 28-01-2020 | Piet Boere | Z | 1,0 | 38,0 | 1409 | |
| 20 | 04-02-2020 | extern | Z | 1,0 | 27,3 | 1409 | |
| 21 | 11-02-2020 | Kees Lugthart | W | 0,0 | 0,0 | 1401 | |
| 22 | 18-02-2020 | Barbara Mandok | Z | 1,0 | 37,0 | 1402 | |
| 23 | 25-02-2020 | Bert Scholten | Z | 0,0 | 0,0 | 1388 | |
| 24 | 03-03-2020 | extern | W | 1,0 | 27,3 | 1388 | |
| 25 | 10-03-2020 | Arie de Groot | Z | 0,0 | 0,0 | 1375 | |
| 26 | 17-03-2020 | ||||||
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| 34 | |||||||
| Startwaarde | 44,0 | ||||||
| Totaal | 520,5 | ||||||