Dutch Open 2025 - Zesrondig 1

Open SwissStandard

55 players participated in this 6-round tournament, held from 22 Jul 2025 to 27 Jul 2025 in Dieren, Netherlands. 2 titled players from 2 federations. Top 10 Elo average was 2093, and top seed was Wouter Terlouw (🇳🇱 NED, FM, 2246).

Maxim Le Clercq (🇳🇱 NED, 2054) won with 5.5/6, ahead of Daan Noordenbos (5.0) and Mick Van Randtwijk (5.0). Le Clercq won solo starting round 4.

The biggest upset came in round 6: Katja Tangarife Ramirez (1432) beat Theo Pluijmen (1872), a +440-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

🇳🇱FMWouter Terlouw2246

Avg top 10

2,093

Participants

Titled players · 2

FM×1

CM×1

Federations · 2 represented

🇳🇱Netherlands×52

🇩🇪Germany×3

Top 3

🥇
Maxim Le Clercq
🇳🇱NED·2054
5.5pts·2386perf+35.4
🥈
Daan Noordenbos
🇳🇱NED·2148
5.0pts·2262perf+14.8
🥉
Mick Van Randtwijk
🇳🇱NED·2083
5.0pts·2232perf+20.4

How it unfolded

Top 6 · 6 rounds

Maxim Le Clercq led from R4; +0.5-point edge over the runner-up.

Co-leaders

Le Clercq5.5Van Randtwijk5Noordenbos5Merx4Drenthen4Roskam4

R4–R6 · LEAD HELD

Maxim Le Clercq held the sole lead from R4 through R6 without losing it.

R4 · HEAD-TO-HEAD · WINNER VS 2ND

Maxim Le Clercq beat Mick Van Randtwijk (Black).

WIN STREAKS · 2 top finishers

Maxim Le Clercq 4 wins (R1–R4)Mick Van Randtwijk 3 wins (R1–R3)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Maxim Le Clercq	*	1	½	—
2Mick Van Randtwijk	0	*	—	—
3Daan Noordenbos	½	—	*	½
4Bob Merx	—	—	½	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	Pts	Bu C1	Bu	SB	Perf	Δ
1	Le Clercq, Maxim	2054	NED	+33N	+27B	+32N	+3N	=2B	+4B	5.5	19.5	22.0	19.50	2386	+35.4
2	Noordenbos, Daan	2148	NED	+24N	+6B	=7N	+8B	=1N	+12B	5.0	21.5	24.5	19.75	2262	+14.8
3	Van Randtwijk, Mick	2083	NED	+17N	+15B	+9N	−1B	+26N	+6B	5.0	20.5	23.5	18.00	2232	+20.4
4	Roskam, Mathieu	1964	NED	+30B	−22N	+24B	+10N	+15B	−1N	4.0	19.0	22.0	13.50	2055	+14.2
5	Terlouw, WouterFM	2246	NED	+14B	=8N	=10B	−15N	+32B	+16B	4.0	18.5	21.0	13.50	1997	-53.6
6	Veenstra, Wopke	1974	NED	+39B	−2N	+25B	+32N	+28B	−3N	4.0	18.5	21.0	11.00	2060	+11.8
7	Merx, Bob	2039	NED	+35N	+49B	=2B	=22N	=20B	=13N	4.0	18.0	19.5	11.75	2106	+11.0
8	Kools, Jasper	1960	NED	+34N	=5B	+50B	−2N	=14B	+30N	4.0	18.0	19.5	10.75	2097	+21.2
9	Schoonackers, Jeroen	1971	NED	+36B	+45N	−3B	=14N	=11B	+22N	4.0	18.0	19.5	10.75	1957	-1.0
10	Huiskes, Mathijs	1926	NED	=23N	+31B	=5N	−4B	+41N	+21B	4.0	17.0	19.0	11.50	2127	+31.0
11	Drenthen, Arjan	1932	NED	+40N	−21B	=23N	+34B	=9N	+26B	4.0	15.5	17.5	11.00	2019	+13.6
12	Gouw, Carol-Peter	1975	NED	=37N	+52B	=44N	+40B	+21N	−2N	4.0	14.0	14.5	7.50	2028	+9.4
13	Zevenhuizen, Daniel	2135	NED	+29B	F	=49N	+35B	+42N	=7B	4.0	13.0	13.0	10.25	2137	+1.2
14	Ramdien, Steven	1751	NED	−5N	+43B	+18N	=9B	=8N	=15B	3.5	19.0	21.0	11.25	2045	+88.0
15	Veenendaal, Loek	1929	NED	+47B	−3N	+53B	+5B	−4N	=14N	3.5	18.0	18.5	7.75	1978	+8.2
16	Van de Groep, William	1964	NED	=25B	−48N	+36B	+29N	+22B	−5N	3.5	15.5	17.0	10.00	1992	+2.8
17	Tangarife Ramirez, Gonzalo	1973	NED	−3B	+47N	−28B	+53N	+44B	=19N	3.5	14.5	15.0	5.25	1911	-7.8
18	Segers, Reinoud	2061	NED	−32B	+42N	−14B	=25N	+45B	+33N	3.5	13.5	15.0	7.50	1989	-7.0
19	Godding, Mick	1889	NED	=52N	=23B	=35N	=41B	+40N	=17B	3.5	13.0	13.5	7.75	1915	+5.0
20	Rutten, Bram	1980	NED	+41N	=44B	+48N	=21B	=7N	F	3.5	12.0	12.0	7.75	2081	+14.2
21	Van Roosmalen, SjoerdCM	2090	NED	+38B	+11N	=22B	=20N	−12B	−10N	3.0	18.5	21.0	9.75	1941	-24.0
22	Koning, Milan	1908	NED	+53N	+4B	=21N	=7B	−16N	−9B	3.0	18.5	19.0	8.00	1963	+9.2
23	Knobbe, Elise	1803	NED	=10B	=19N	=11B	=24N	=33B	=25N	3.0	17.5	20.0	10.00	1925	+40.0
24	Knoop, Bram	1930	NED	−2B	+39N	−4N	=23B	=35N	+41B	3.0	17.0	19.0	7.25	1909	-7.6
25	Fassaert, Desire	1925	NED	=16N	=26B	−6N	=18B	+46N	=23B	3.0	17.0	18.5	8.00	1923	-0.6
26	Vroegindeweij, Wouter	1853	NED	=42B	=25N	+33B	+44N	−3B	−11N	3.0	16.5	18.0	6.50	1902	+15.2
27	Moerkerken, Remko	1955	NED	+54B	−1N	+45B	−28N	−30B	+43N	3.0	15.0	15.5	4.00	1889	-10.2
28	Segers, Albert	1967	NED	+43N	−32B	+17N	+27B	−6N	F	3.0	15.0	15.0	8.50	2133	+17.0
29	Dekker, Jasper	1908	NED	−13N	=41B	+37N	−16B	=34N	+40B	3.0	14.5	16.5	6.75	1905	-1.0
30	Smeets, Sjo	1834	NED	−4N	−40B	+52N	+55B	+27N	−8B	3.0	13.5	13.5	3.50	1888	+8.4
31	Stoop, Coen	2049	NED	=48B	−10N	−40N	+52B	+38B	=42N	3.0	12.0	12.5	4.75	1883	-26.0
32	Vroegindeweij, Martijn	0	NED	+18N	+28N	−1B	−6B	−5N	=34B	2.5	20.0	22.5	7.75	1964	0.0
33	Hardeman, Martijn	1949	NED	−1B	+54N	−26N	+43B	=23N	−18B	2.5	17.0	17.5	4.00	1860	-15.4
34	Segers, Job	1657	NED	−8B	=38N	+51B	−11N	=29B	=32N	2.5	16.0	17.0	5.00	1847	+3.2
35	Dekker, Albert	1860	NED	−7B	+55N	=19B	−13N	=24B	=44N	2.5	16.0	16.0	4.00	1857	-2.0
36	Postmus, Geert	0	NED	−9N	=46B	−16N	+37B	−43N	+54B	2.5	13.5	14.0	3.75	1839	0.0
37	Koes, Richard	1826	NED	=12B	−50N	−29B	−36N	+51N	+46B	2.5	12.5	13.5	4.50	1934	+14.2
38	Brouwer, Joey	1924	NED	−21N	=34B	−41N	+54B	−31N	+53B	2.5	11.0	11.5	2.25	1851	-25.6
39	Tangarife Ramirez, Katja	1432	NED	−6N	−24B	=54N	−46B	+52N	+51B	2.5	10.0	10.5	1.75	1837	+4.0
40	Bonath, Michael Alexander	1823	GER	−11B	+30N	+31B	−12N	−19B	−29N	2.0	17.5	20.5	6.00	1806	-2.6
41	Jongkind, Kees	1858	NED	−20B	=29N	+38B	=19N	−10B	−24N	2.0	17.0	19.5	5.75	1801	-8.8
42	Tuijp, Paul	1822	NED	=26N	−18B	+46N	F	−13B	=31B	2.0	15.0	16.5	4.50	1925	+11.6
43	Gussinklo, Ben	1856	NED	−28B	−14N	+47B	−33N	+36B	−27B	2.0	14.5	16.0	4.00	1631	-55.6
44	Zouridis, Christian	1699	NED	F	=20N	=12B	−26B	−17N	=35B	1.5	16.5	16.5	5.00	1779	+16.8
45	Quinten, Laurens	1752	NED	+46N	−9B	−27N	=51B	−18N	−47B	1.5	13.5	14.5	2.00	1720	-11.6
46	Kok, Lennart	1885	NED	−45B	=36N	−42B	+39N	−25B	−37N	1.5	12.5	14.0	3.75	1589	-37.6
47	Van der Pas, Paul	1732	NED	−15N	−17B	−43N	F	=53B	+45N	1.5	11.0	11.0	1.75	1703	-8.8
48	Torczynski, Peter	1974	NED	=31N	+16B	−20B	F	F	F	1.5	10.0	10.0	5.00	1998	+2.0
49	Albersmann, Rene	1857	GER	+55B	−7N	=13B	F	F	F	1.5	10.0	10.0	2.00	1989	+9.6
50	Kolakovic, Klaudio	2029	GER	=51N	+37B	−8N	F	F	F	1.5	7.5	7.5	3.00	1886	-11.4
51	Pluijmen, Theo	1872	NED	=50B	F	−34N	=45N	−37B	−39N	1.0	10.5	10.5	1.50	1610	-33.0
52	Hanning, Hidde	1830	NED	=19B	−12N	−30B	−31N	−39B	F	0.5	16.0	16.0	1.75	1547	-58.0
53	Mutta, Sevya Sonit	1752	NED	−22B	F	−15N	−17B	=47N	−38N	0.5	14.0	14.0	0.75	1527	-43.2
54	Roos, Gerrit	1873	NED	−27N	−33B	=39B	−38N	F	−36N	0.5	13.0	13.0	1.25	1590	-25.8
55	Van Gelder, Jacques	1794	NED	−49N	−35B	F	−30N	F	F	0.0	7.0	7.0	0.00	1050	-25.2

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Ramdien, StevenNED
+88.0
3.5 pts · #12
2Knobbe, EliseNED
+40.0
3.0 pts · #29
3Le Clercq, MaximNED
+35.4
5.5 pts · #3

Top rating losers

1Hanning, HiddeNED
-58.0
0.5 pts · #53
2Gussinklo, BenNED
-55.6
2.0 pts · #50
3Terlouw, WouterFMNED
-53.6
4.0 pts · #23

Biggest upsets

R6+440 Elo gap
Tangarife Ramirez, Katja1432 beat Pluijmen, Theo1872
R5+398 Elo gap
Tangarife Ramirez, Katja1432 beat Hanning, Hidde1830
R4+317 Elo gap
Veenendaal, Loek1929 beat FMTerlouw, Wouter2246