| Uitslagen van externe ronde 4 | 04-08-2013 |
| 1 | Zekria | Amani | W | 0-1 | 1760 |
| 2 | Frits | Wiggerts | Z | 0-1 | 1662 |
| 3 | Hendrik van | Buren | W | ˝-˝ | 1740 |
| 4 | Ko | Kooman | Z | 0-1 | 1688 |
| 5 | Frans | Veerman | W | ˝-˝ | 1680 |
| 6 | Remco | Menger | Z | 0-1 | 1635 |
| 1 | Bert | Sigmond | Z | 1-0 | 1571 |
| 2 | Herman de | Munnik | W | 0-1 | 1755 |
| 3 | Lion de | Kok | Z | ˝-˝ | 1636 |
| 4 | Liedewij van | Eijk | W | 0-1 | 1582 |
| 5 | Thijs | Stomphorst | Z | 0-1 | 1571 |
| 6 | Cor van der | Jagt | W | 1-0 | 1573 |
| 1 | Liedewij van | Eijk | W | 1-0 | 1256 |
| 2 | Bob | Hartogh Heys | Z | 1-0 | 1464 |
| 3 | Jan | Sanders | W | ˝-˝ | 1423 |
| 4 | Henk | Kelderman | Z | 0-1 | 1256 |
| 5 | Hein van | Vlerken | W | 1-0 | 979 |
| 6 | Wim | Peters | Z | 0-1 | 1158 |
| 1 | Liedewij van | Eijk | W | 1-0 | 1561 |
| 2 | Jan | Zuidema | Z | 0-1 | 1301 |
| 3 | Rob | Rietbergen | W | 1-0 | 1402 |
| 4 | Jan | Diekema | Z | 0-1 | 1398 |
| 5 | André de | Groot | W | 0-1 | 1228 |
| 6 | Xadya van | Bruxvoort | Z | 1-0 | 1213 |