| White | Elo | Black | Elo | ECO | Year | Res. | # | | | |
|
Reintke, Erwin
|
1723
|
Sipkema, Willem
|
1585
|
B85
|
2008
|
1-0
| 19 |
|
|
|
|
Schlegel, Kai Friedric...
|
|
Sipkema, Willem
|
|
D54
|
2013
|
½-½
| 43 |
|
|
|
|
Sipkema, Willem
|
|
Johnen, Franz
|
1757
|
D46
|
2013
|
1-0
| 45 |
|
|
|
|
Sipkema, Willem
|
|
Lammes, Pim
|
|
C44
|
2013
|
1-0
| 18 |
|
|
|
|
Sipkema, Willem
|
|
BYE7
|
|
|
2013
|
½-½
| 0 |
|
|
|
|
Van Velthoven, Paul
|
|
Sipkema, Willem
|
|
B20
|
2013
|
0-1
| 44 |
|
|
|
|
Sipkema, Willem
|
|
Roemhild, Wolfgang
|
|
C45
|
2013
|
0-1
| 30 |
|
|
|
|
Been, Klaas
|
1773
|
Sipkema, Willem
|
|
D04
|
2013
|
1-0
| 25 |
|
|
|
|
Ikonnikov, Vyacheslav
|
2526
|
Sipkema, Willem
|
1845
|
E15
|
2018
|
1-0
| 56 |
|
|
|