| Rondenlijst van Willem van Biezen | ||||||
| Ronde | Datum | Tegenstander | Kleur | Score | Punten | Rating |
| 1 | 03-09-2019 | Ignace Rood | Z | 0.5 | 22.0 | 1579 |
| 2 | 10-09-2019 | Ben Rotteveel | W | 0.0 | 0.0 | 1571 |
| 3 | 17-09-2019 | afgezegd | 7.3 | |||
| 4 | 24-09-2019 | afgezegd | 7.3 | |||
| 5 | 01-10-2019 | afgezegd | 7.3 | |||
| 6 | 08-10-2019 | Marcel Verschoor | W | 0.0 | 0.0 | 1565 |
| 7 | 15-10-2019 | Ron Brands | Z | 1.0 | 38.0 | 1578 |
| 8 | 29-10-2019 | afgezegd | 7.3 | |||
| 9 | 05-11-2019 | afgezegd | 0.0 | |||
| 10 | 12-11-2019 | extern | W | 0.5 | 11.0 | |
| 11 | 19-11-2019 | Leon vd Meer | Z | 1.0 | 16.0 | 1581 |
| 12 | 26-11-2019 | Engbert vd Zaag | W | 0.5 | 10.0 | 1581 |
| 13 | 03-12-2019 | Bernard Touber | Z | 0.5 | 18.0 | 1582 |
| 14 | 10-12-2019 | extern | W | 1.0 | 11.0 | |
| 15 | 17-12-2019 | Albert Olthof | W | 0.5 | 24.0 | 1587 |
| 16 | 14-01-2020 | Paul de Haas | Z | 0.0 | 0.0 | 1579 |
| 17 | 21-01-2020 | afgezegd | 0.0 | |||
| 18 | 28-01-2020 | afgezegd | 0.0 | |||
| 19 | 04-02-2020 | afgezegd | 0.0 | |||
| 20 | 11-02-2020 | afgezegd | 0.0 | |||
| 21 | 18-02-2020 | Ignace Rood | W | 0.0 | 0.0 | 1573 |
| 22 | 25-02-2020 | extern | W | 0.0 | 11.0 | |
| Totaal | 190.3 | |||||