2. Round 28/08/1998 Willem II - Fortuna Sittard 1:0
3. Round 07/09/1998 sc Heerenveen - Willem II 2:2
4. Round 11/09/1998 Willem II - Sparta Rotterdam 3:2
5. Round 18/09/1998 AZ Alkmaar - Willem II 1:1
6. Round 22/09/1998 Willem II - SC Cambuur 2:1
7. Round 25/09/1998 Feyenoord - Willem II 3:2 yellow-red card
9. Round 16/10/1998 Vitesse - Willem II 3:2
10. Round 24/10/1998 Willem II - PSV Eindhoven 4:2
11. Round 30/10/1998 MVV - Willem II 1:1
12. Round 06/11/1998 De Graafschap - Willem II 2:2
13. Round 10/11/1998 Willem II - RKC Waalwijk 3:0
14. Round 14/11/1998 Willem II - NAC Breda 2:1
15. Round 20/11/1998 FC Twente - Willem II 5:1
16. Round 28/11/1998 FC Utrecht - Willem II 2:0
16. Round 03/12/1998 Willem II - Vitesse 3:5
17. Round 11/12/1998 Willem II - NEC Nijmegen 1:0
19. Round 18/12/1998 PSV Eindhoven - Willem II 1:0
20. Round 05/02/1999 Willem II - sc Heerenveen 3:2
21. Round 16/02/1999 NEC Nijmegen - Willem II 0:3
22. Round 26/02/1999 Willem II - FC Utrecht 1:0
23. Round 06/03/1999 RKC Waalwijk - Willem II 1:3
24. Round 12/03/1999 Willem II - De Graafschap 2:0
25. Round 17/03/1999 Roda JC Kerkrade - Willem II 0:2
25. Round 20/03/1999 Willem II - Feyenoord 4:1 yellow card
27. Round 03/04/1999 NAC Breda - Willem II 2:2
27. Round 06/04/1999 Fortuna Sittard - Willem II 1:2
28. Round 09/04/1999 Willem II - AZ Alkmaar 2:0
30. Round 24/04/1999 Willem II - AFC Ajax 3:1
31. Round 01/05/1999 Sparta Rotterdam - Willem II 0:4
32. Round 07/05/1999 Willem II - MVV 4:1
33. Round 15/05/1999 SC Cambuur - Willem II 0:2
34. Round 22/05/1999 Willem II - FC Twente 1:2

Geoffrey Prommayon

Geoffrey Prommayon
Born: 25.10.1971
Place of birth: Udon Thani, Thailand Thailand
Nationality: Thailand Thailand
Netherlands Netherlands
Height: 168 cm
Weight: 69 kg
Position(s): Right Back
Foot: right