Dutch Open 2025 - Zesrondig 2
27 players participated in this 6-round tournament, held from 22 Jul 2025 to 27 Jul 2025 in Dieren, Netherlands. Top 10 Elo average was 1757, and top seed was Jan Haverhoek (🇳🇱 NED, 1933).
Ryan Ramdien (🇳🇱 NED, 1817) won with 5.0/6, ahead of Abel Drenthen (5.0) and Henk Van Lingen (4.5). Ramdien shared the lead from round 1, winning on tie-break.
The biggest upset came in round 6: Laurens Grave (1713) beat Jan Haverhoek (1933), a +220-point gap.
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How it unfolded
Top 6 · 6 roundsTight race until R3; 2 players tied at 5.0/6, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 2 at the finish.
Ryan Ramdien held the sole lead from R3 through R6 without losing it.
2 players finish on 5.0/6. Ramdien takes the title on Buchholz Cut1 (20.0).
Ryan Ramdien beat Abel Drenthen (White).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Ryan Ramdien | * | 1 | 1 | ½ |
| 2Abel Drenthen | 0 | * | — | 1 |
| 3Henk Van Lingen | 0 | — | * | — |
| 4Xander Van Lingen | ½ | 0 | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Ramdien, Ryan | 1817 | NED | +21B | +18N | +2B | =5N | +3N | =4B | 5.0 | 20.0 | 22.5 | 18.50 | 2110 | +55.2 |
| 2 | Drenthen, Abel | 1676 | NED | +9N | +16B | −1N | +19B | +6N | +5B | 5.0 | 19.0 | 21.5 | 16.50 | 1869 | +30.8 |
| 3 | Van Lingen, Henk | 1779 | NED | =12N | +13B | +6N | +4N | −1B | +9B | 4.5 | 19.5 | 22.5 | 16.00 | 1930 | +15.6 |
| 4 | Romijn, Bart | 1839 | NED | +11N | +7B | =5N | −3B | +13N | =1N | 4.0 | 21.0 | 24.0 | 15.00 | 1845 | +0.6 |
| 5 | Van Lingen, Xander | 0 | NED | +23B | +?N | =4B | =1B | +8N | −2N | 4.0 | 19.0 | 19.0 | 9.50 | 1760 | 0.0 |
| 6 | Van der Wilt, Ruben | 0 | NED | +25B | +14N | −3B | +?N | −2B | +12N | 4.0 | 16.5 | 16.5 | 7.00 | 1579 | 0.0 |
| 7 | Grave, Laurens | 1713 | NED | +27B | −4N | +26B | −8B | +17N | +15N | 4.0 | 13.0 | 13.0 | 5.50 | 1696 | -3.2 |
| 8 | Smits, Jeroen | 1692 | NED | =10B | +20N | =12B | +7N | −5B | =11N | 3.5 | 18.0 | 20.5 | 11.50 | 1918 | +32.4 |
| 9 | Booy, Willem | 1599 | NED | −2B | =15N | +22B | +18N | +12B | −3N | 3.5 | 17.5 | 20.0 | 9.25 | 1755 | +38.8 |
| 10 | Pelsmaeker, Ronald | 1602 | NED | =8N | =17B | −19N | +26B | =20N | +16B | 3.5 | 13.5 | 14.0 | 7.25 | 1577 | -4.0 |
| 11 | Veldhuijzen, Joop | 0 | NED | −4B | +25N | =18B | =15N | +?B | =8B | 3.5 | 13.5 | 13.5 | 5.25 | 1762 | 0.0 |
| 12 | Jongejan, Evienne | 0 | NED | =3B | +22N | =8N | +17B | −9N | −6B | 3.0 | 18.0 | 20.5 | 9.00 | 1693 | 0.0 |
| 13 | Kooman, Ko | 1671 | NED | =22B | −3N | +21B | +25N | −4B | =14N | 3.0 | 16.5 | 17.5 | 6.25 | 1677 | 0.0 |
| 14 | Fokkema, Steyn | 0 | NED | +19N | −6B | −17N | =24B | +23N | =13B | 3.0 | 13.5 | 14.5 | 6.00 | 1753 | 0.0 |
| 15 | Haverhoek, Jan | 1933 | NED | −16N | =9B | +24N | =11B | =19N | −7B | 2.5 | 16.0 | 17.0 | 5.75 | 1578 | -54.0 |
| 16 | Manni, Harry | 0 | NED | +15B | −2N | −?B | =20N | +21B | −10N | 2.5 | 16.0 | 16.0 | 6.25 | 1647 | 0.0 |
| 17 | Jansen, Kay | 0 | NED | =20B | =10N | +14B | −12N | −7B | =?N | 2.5 | 16.0 | 16.0 | 6.00 | 1561 | 0.0 |
| 18 | Koeweiden, Theo | 1688 | NED | +24N | −1B | =11N | −9B | =26N | =20B | 2.5 | 15.5 | 16.0 | 4.25 | 1412 | -20.2 |
| 19 | Hordijk, Frank | 1661 | NED | −14B | +23N | +10B | −2N | =15B | F | 2.5 | 15.5 | 15.5 | 6.25 | 1737 | -4.4 |
| 20 | Melchers, Bert-Jan | 1620 | NED | =17N | −8B | =23N | =16B | =10B | =18N | 2.5 | 14.5 | 16.0 | 6.25 | 1536 | -6.8 |
| 21 | Graaskamp, Harry | 1738 | NED | −1N | =24B | −13N | +27B | −16N | +23B | 2.5 | 13.0 | 13.0 | 2.00 | 954 | -38.4 |
| 22 | Rijnveld, Rudolf | 1698 | NED | =13N | −12B | −9N | −23B | +24N | +26B | 2.5 | 12.0 | 12.5 | 3.00 | 1443 | -13.6 |
| 23 | Van Rijssen, Henk | 0 | NED | −5N | −19B | =20B | +22N | −14B | −21N | 1.5 | 14.5 | 17.0 | 3.75 | 1626 | 0.0 |
| 24 | Manni, Piet | 0 | NED | −18B | =21N | −15B | =14N | −22B | F | 1.0 | 13.0 | 13.0 | 2.75 | 1443 | 0.0 |
| 25 | FIDE 40115909 | 0 | — | −6N | −11B | +27N | −13B | F | F | 1.0 | 10.5 | 10.5 | 0.00 | 871 | 0.0 |
| 26 | Heukels, Theo | 0 | NED | −?B | F | −7N | −10N | =18B | −22N | 0.5 | 12.5 | 12.5 | 1.25 | 1306 | 0.0 |
| 27 | FIDE 1080318 | 0 | — | −7N | F | −25B | −21N | F | F | 0.0 | 7.5 | 7.5 | 0.00 | 926 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Ramdien, RyanNED+55.25.0 pts · #1
- 2Booy, WillemNED+38.83.5 pts · #5
- 3Smits, JeroenNED+32.43.5 pts · #8
- 1Haverhoek, JanNED-54.02.5 pts · #16
- 2Graaskamp, HarryNED-38.42.5 pts · #27
- 3Koeweiden, TheoNED-20.22.5 pts · #21
- R6+220 Elo gap