The season runs from April to August and is followed by a promotion and relegation system with the highest level of baseball in the Netherlands , the Honkbal Hoofdklasse .
The composition of the top level may change from year to year .
The season runs from April to August and is followed by a promotion and relegation system with the highest level of baseball in the Netherlands , the Honkbal Hoofdklasse , so that the composition of the top level may change from year to year .