| Uitslagen van externe ronde 4 | 04-08-2013 |
| 1 | Otto | Wilgenhof | Z | 0-1 | 2482 |
| 2 | Eelco de | Vries | W | 0-1 | 2141 |
| 3 | Wouter van | Rijn | Z | 0-1 | 2123 |
| 4 | Richard van der | Wel | W | 0-1 | 2267 |
| 5 | Peter | Boel | Z | 0-1 | 2027 |
| 6 | Dirk | Hoogland | W | ˝-˝ | 2200 |
| 7 | Leon van | Tol | Z | 1-0 | 2214 |
| 8 | Frank | Schleipfenbauer | W | 1-0 | 2074 |
| 1 | Sander | Berkhout | Z | ˝-˝ | 2100 |
| 2 | John | Sloots | W | ˝-˝ | 1739 |
| 3 | Sjoerd van | Roosmalen | Z | ˝-˝ | 1977 |
| 4 | Koert van | Bemmel | W | 1-0 | 1922 |
| 5 | Fred | Reulink | Z | 0-1 | 1883 |
| 6 | Ruud | Verhoef | W | 0-1 | 1724 |
| 7 | Theo | Jurrius | Z | 1-0 | 1628 |
| 8 | Jan | Knuiman | W | 0-1 | 1791 |
| 1 | Martijn | Boele | Z | 1-0 | 1980 |
| 2 | Daan | Holtackers | W | 1-0 | 2205 |
| 3 | Ivo van der | Gouw | Z | 0-1 | 2019 |
| 4 | Gerben | Hendriks | W | ˝-˝ | 1915 |
| 5 | Ruud | Wille | Z | 1-0 | 1910 |
| 6 | Cees | Sep | W | ˝-˝ | 1860 |
| 7 | Remco | Gerlich | Z | 1-0 | 1905 |
| 8 | Wouter | Abrahamse | W | 1-0 | 1813 |
| 1 | Barth | Plomp | Z | 0-1 | 1986 |
| 2 | Paul | Schoenmakers | W | ˝-˝ | 1967 |
| 3 | Koen | Maassen van den Brink | Z | 1-0 | 1867 |
| 4 | Anne Paul | Taal | W | 1-0 | 1872 |
| 5 | Paul | Tulfer | Z | ˝-˝ | 1819 |
| 6 | René van | Alfen | W | 1-0 | 1836 |
| 7 | Tony | Hogerhorst | Z | 0-1 | 1799 |
| 8 | Siert | Huizinga | W | 1-0 | 1736 |