| Rondenlijst van Ferdi Sieben | ||||||||
| Ronde | Datum | Tegenstander | Kleur | Score | Punten | WP | SB | Rating |
| 1 | 10-01-2019 | afgezegd | 2,0 | 91,5 | 45,75 | |||
| 2 | 17-01-2019 | Beker | 5,0 | 93,0 | 77,50 | |||
| 3 | 24-01-2019 | Wilco Kort | Z | 0,5 | 3,5 | 28,0 | 14,00 | 1604 |
| 4 | 31-01-2019 | Lucas Albers | Z | 1,0 | 6,0 | 25,5 | 25,50 | 1609 |
| 5 | 07-02-2019 | Bob Ameling | W | 0,0 | 1,0 | 30,5 | 0,00 | 1600 |
| 6 | 14-02-2019 | afgezegd | 2,0 | 91,5 | 45,75 | |||
| 7 | 21-02-2019 | afgezegd | 2,0 | 90,0 | 45,00 | |||
| 8 | 28-02-2019 | Dirk Brinkman | W | 1,0 | 6,0 | 25,5 | 25,50 | 1612 |
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| Totaal | 27,5 | 475,5 | 279,00 | |||||