CChessStats

Dutch Open 2025 - Zesrondig 2

Open SwissStandard

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.

Location
🇳🇱Dieren, Netherlands
Dates
22 Jul 2025 → 27 Jul 2025
Time control
Standard: 90min/40moves+30min/end+30sec increment per move starting from move 1
System
Swiss · 6 rounds
Top seed
🇳🇱Jan Haverhoek1933
Avg top 10
1,757
Participants
27
Federations · 1 represented
🇳🇱Netherlands×25
Top 3
  • 🥇
    Ryan Ramdien
    🇳🇱NED·1817
    5.0pts·2110perf+55.2
  • 🥈
    Abel Drenthen
    🇳🇱NED·1676
    5.0pts·1869perf+30.8
  • 🥉
    Henk Van Lingen
    🇳🇱NED·1779
    4.5pts·1930perf+15.6

How it unfolded

Top 6 · 6 rounds

Tight 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.

Co-leaders
10
5
1
2
1
2
1.534.56R1R2R3R4R5R6
Ramdien5Drenthen5Van Lingen4.5Van Lingen4Romijn4Grave4
R3–R6 · LEAD HELD

Ryan Ramdien held the sole lead from R3 through R6 without losing it.

R6 · TIEBREAK CLUSTER

2 players finish on 5.0/6. Ramdien takes the title on Buchholz Cut1 (20.0).

R3 · HEAD-TO-HEAD · WINNER VS 2ND

Ryan Ramdien beat Abel Drenthen (White).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Ryan Ramdien*
1
1
½
2Abel Drenthen
0
*—
1
3Henk Van Lingen
0
—*—
4Xander Van Lingen
½
0
—*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6PtsBu C1BuSBPerfΔ
1Ramdien, Ryan1817NED+21B+18N+2B=5N+3N=4B5.020.022.518.502110+55.2
2Drenthen, Abel1676NED+9N+16B−1N+19B+6N+5B5.019.021.516.501869+30.8
3Van Lingen, Henk1779NED=12N+13B+6N+4N−1B+9B4.519.522.516.001930+15.6
4Romijn, Bart1839NED+11N+7B=5N−3B+13N=1N4.021.024.015.001845+0.6
5Van Lingen, Xander0NED+23B+?N=4B=1B+8N−2N4.019.019.09.5017600.0
6Van der Wilt, Ruben0NED+25B+14N−3B+?N−2B+12N4.016.516.57.0015790.0
7Grave, Laurens1713NED+27B−4N+26B−8B+17N+15N4.013.013.05.501696-3.2
8Smits, Jeroen1692NED=10B+20N=12B+7N−5B=11N3.518.020.511.501918+32.4
9Booy, Willem1599NED−2B=15N+22B+18N+12B−3N3.517.520.09.251755+38.8
10Pelsmaeker, Ronald1602NED=8N=17B−19N+26B=20N+16B3.513.514.07.251577-4.0
11Veldhuijzen, Joop0NED−4B+25N=18B=15N+?B=8B3.513.513.55.2517620.0
12Jongejan, Evienne0NED=3B+22N=8N+17B−9N−6B3.018.020.59.0016930.0
13Kooman, Ko1671NED=22B−3N+21B+25N−4B=14N3.016.517.56.2516770.0
14Fokkema, Steyn0NED+19N−6B−17N=24B+23N=13B3.013.514.56.0017530.0
15Haverhoek, Jan1933NED−16N=9B+24N=11B=19N−7B2.516.017.05.751578-54.0
16Manni, Harry0NED+15B−2N−?B=20N+21B−10N2.516.016.06.2516470.0
17Jansen, Kay0NED=20B=10N+14B−12N−7B=?N2.516.016.06.0015610.0
18Koeweiden, Theo1688NED+24N−1B=11N−9B=26N=20B2.515.516.04.251412-20.2
19Hordijk, Frank1661NED−14B+23N+10B−2N=15BF2.515.515.56.251737-4.4
20Melchers, Bert-Jan1620NED=17N−8B=23N=16B=10B=18N2.514.516.06.251536-6.8
21Graaskamp, Harry1738NED−1N=24B−13N+27B−16N+23B2.513.013.02.00954-38.4
22Rijnveld, Rudolf1698NED=13N−12B−9N−23B+24N+26B2.512.012.53.001443-13.6
23Van Rijssen, Henk0NED−5N−19B=20B+22N−14B−21N1.514.517.03.7516260.0
24Manni, Piet0NED−18B=21N−15B=14N−22BF1.013.013.02.7514430.0
25FIDE 401159090—−6N−11B+27N−13BFF1.010.510.50.008710.0
26Heukels, Theo0NED−?BF−7N−10N=18B−22N0.512.512.51.2513060.0
27FIDE 10803180—−7NF−25B−21NFF0.07.57.50.009260.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets
Dutch Open 2025 - Zesrondig 2 — Dieren, Netherlands | Chess Tournament Results | ChessStats