Dulfer was born in Schiedam, and played his club cricket for Excelsior '20.
At the 1990 ICC Trophy, which the Netherlands hosted, Dulfer played in seven of his team's nine matches, including the final against Zimbabwe.
He took 11 wickets, behind only Roland Lefebvre and Andre van Troost amongst his teammates, and against Canada took figures of 5/38.
He returned to the side in June 1997, in a friendly match against Herefordshire, and later in the year played against Worcestershire in the 1997 NatWest Trophy, a game which held List A status.
[4] Dulfer married fellow cricketer Ingrid Keijzer (played 95 games for the Dutch national handballteam women) has 3 children and is the father of the handball player Kelly Dulfer.