| Uitslagen van externe ronde 4 | 13-12-2015 |
| 1 | Eelco de | Vries | Z | ½-½ | 2059 |
| 2 | Jaap | Vogel | W | ½-½ | 2302 |
| 3 | Tom | Bus | Z | ½-½ | 2135 |
| 4 | Otto | Wilgenhof | W | 0-1 | 2400 |
| 5 | Frank | Schleipfenbauer | Z | ½-½ | 2214 |
| 6 | Léon van | Tol | W | ½-½ | 2126 |
| 7 | Bob | Beeke | Z | 1-0 | 2141 |
| 8 | Wouter van | Rijn | W | 1-0 | 2142 |
| 9 | Dirk | Hoogland | Z | ½-½ | 2059 |
| 10 | Peter | Boel | W | 1-0 | 2136 |
| 1 | Johan | Wolbers | Z | 1-0 | 2093 |
| 2 | Sjoerd van | Roosmalen | W | 1-0 | 1985 |
| 3 | Pieter | Verhoef | Z | 0-1 | 2041 |
| 4 | Richard van der | Wel | W | 1-0 | 1971 |
| 5 | Daan | Holtackers | Z | 1-0 | 1947 |
| 6 | Koen | Maassen van den Brink | W | 1-0 | 1928 |
| 7 | Jan | Knuiman | Z | 1-0 | 1936 |
| 8 | Anne Paul | Taal | W | 1-0 | 1932 |
| 1 | Fred | Reulink | Z | ½-½ | 2018 |
| 2 | Jochem | Woestenburg | W | 1-0 | 1984 |
| 3 | Theo | Jurrius | Z | 0-1 | 1994 |
| 4 | Remco | Gerlich | W | 0-1 | 1971 |
| 5 | Bent | Schleipfenbauer | Z | 0-1 | 2007 |
| 6 | Eric | Langedijk | W | ½-½ | 1968 |
| 7 | Ruud | Wille | Z | 0-1 | 1959 |
| 8 | Murat | Duman | W | 1-0 | 1955 |
| 1 | Désiré | Fassaert | Z | ½-½ | 2027 |
| 2 | Gerben | Hendriks | W | 1-0 | 1913 |
| 3 | Barth | Plomp | Z | ½-½ | 2032 |
| 4 | Cees | Sep | W | 0-1 | 1987 |
| 5 | Bert | Duijker | Z | 0-1 | 1682 |
| 6 | Mick Van | Randtwijk | W | 1-0 | 1777 |
| 7 | Ruud | Verhoef | Z | 0-1 | 1805 |
| 8 | Ivo van der | Gouw | W | ½-½ | 1752 |