| Rondenlijst van Ronald Keizer | ||||||||
| Ronde | Datum | Tegenstander | Kleur | Score | Punten | WP | SB | Rating |
| 1 | 02-07-2021 | Marianna Zelichenko | Z | 1,0 | 3 | 9 | 9,0 | 1610 |
| 2 | 09-07-2021 | Brian Nijdam | W | 0,5 | 1 | 42 | 21,0 | 1610 |
| 3 | 16-07-2021 | oneven | 2 | 50 | 25,0 | |||
| 4 | 23-07-2021 | afgezegd | 0 | 0 | 0,0 | |||
| 5 | 30-07-2021 | afgezegd | 0 | 0 | 0,0 | |||
| 6 | 06-08-2021 | afgezegd | 0 | 0 | 0,0 | |||
| 7 | 13-08-2021 | Edward de Graaf | Z | 1,0 | 3 | 23 | 23,0 | 1620 |
| 8 | 20-08-2021 | Harry ten Klooster | W | 1,0 | 3 | 16 | 16,0 | 1630 |
| 9 | 27-08-2021 | Henk van Schaik | W | 1,0 | 3 | 28 | 28,0 | 1639 |
| 10 | 03-09-2021 | afgezegd | 0 | 0 | 0,0 | |||
| 11 | 10-09-2021 | Brian Nijdam | Z | 1,0 | 3 | 42 | 42,0 | 1649 |
| 12 | 17-09-2021 | Ineke Binnendijk | W | 1,0 | 3 | 18 | 18,0 | 1658 |
| 13 | 24-09-2021 | Miklos Hoffer | Z | 1,0 | 3 | 46 | 46,0 | 1668 |
| 14 | 01-10-2021 | Noël Koene | W | 1,0 | 3 | 16 | 16,0 | 1677 |
| 15 | 08-10-2021 | Albert Pierik | W | 1,0 | 3 | 11 | 11,0 | 1685 |
| 16 | 15-10-2021 | Edward de Graaf | W | 0,0 | 0 | 23 | 0,0 | 1673 |
| 17 | 22-10-2021 | Brian Nijdam | W | 1,0 | 3 | 42 | 42,0 | 1682 |
| 18 | 29-10-2021 | Miklos Hoffer | W | 0,0 | 0 | 46 | 0,0 | 1671 |
| 19 | 05-11-2021 | Edward de Graaf | Z | 1,0 | 3 | 23 | 23,0 | 1680 |
| 20 | 12-11-2021 | Boris | W | 0,0 | 0 | 13 | 0,0 | 1668 |
| 21 | 19-11-2021 | Ferdinand Binnendijk | Z | 0,0 | 0 | 23 | 0,0 | 1658 |
| 22 | 26-11-2021 | Henk van Schaik | Z | 1,0 | 3 | 28 | 28,0 | 1666 |
| 23 | 03-12-2021 | Rene in 't Veld | Z | 0,0 | 0 | 37 | 0,0 | 1656 |
| 24 | 10-12-2021 | Jasper Mijnheer | Z | 1,0 | 3 | 18 | 18,0 | 1664 |
| 25 | 17-12-2021 | Henk van Schaik | W | 1,0 | 3 | 28 | 28,0 | 1672 |
| 26 | 24-12-2021 | Ferdinand Binnendijk | W | 0,5 | 1 | 23 | 11,5 | 1672 |
| 27 | 31-12-2021 | Miklos Hoffer | Z | 0,5 | 1 | 46 | 23,0 | 1673 |
| 28 | ||||||||
| 29 | ||||||||
| 30 | ||||||||
| 31 | ||||||||
| 32 | ||||||||
| Totaal | 47 | 651 | 428,50 | |||||