In the Dutch Hoofdklasse Curacao Neptunus prepared for the upcoming European Champions Cup with a three-game sweep against the Twins Oosterhout. The second Dutch participant L&D Amsterdam won two of three against HCAW. The Silicon Storks won two of three in a close series against DSS. All three games were decided by a single run. The Hoofddorp Pioniers won two of three against Quick Amersfoort.
Results:
| Donderdag 30 mei 2019 | ||||
| 568 | Hoofddorp Pioniers | Quick Amersfoort | 7 – 0 |  |
| 652 | Silicon Storks | DSS | 7 – 6 | |
| 547 | HCAW | L&D Amsterdam | 1 – 0 | |
| 673 | Twins Oosterhout | Curaçao Neptunus | 1 – 3 | |
| Vrijdag 31 mei 2019 | ||||
| 590 | Curaçao Neptunus | Twins Oosterhout | 7 – 2 | |
| 611 | L&D Amsterdam | HCAW | 3 – 2 | |
| Zaterdag 01 juni 2019 | ||||
| 527 | DSS | Silicon Storks | 4 – 3 | |
| 632 | Quick Amersfoort | Hoofddorp Pioniers | 1 – 10 | |
| 674 | Twins Oosterhout | Curaçao Neptunus | 0 – 3 | |
| 548 | HCAW | L&D Amsterdam | 4 – 6 | |
| Zondag 02 juni 2019 | ||||
| 569 | Hoofddorp Pioniers | Quick Amersfoort | 8 – 14 | |
| 653 | Silicon Storks | DSS | 3 – 2 | |