Dutch Open 2025 - Reserve A

Open SwissStandard

70 players participated in this 9-round tournament, held from 22 Jul 2025 to 30 Jul 2025 in Dieren, Netherlands. 1 titled players from 5 federations. Top 10 Elo average was 2038, and top seed was Dylan Edwardss (🇳🇱 NED, 2074).

Olaf Vlieger (🇳🇱 NED, 1914) won with 7.0/9, ahead of Rogier Van Egmond (7.0) and Mika Kleibeuker (7.0). Vlieger shared the lead from round 8, winning on tie-break.

The biggest upset came in round 9: Jesse Frederiks (1763) beat Anton Bakels (2015), a +252-point gap.

Location

🇳🇱Dieren, Netherlands

Dates

22 Jul 2025 → 30 Jul 2025

Time control

Standard: 90min/40moves+30min/end+30sec increment per move starting from move 1

System

Swiss · 9 rounds

Top seed

🇳🇱Dylan Edwardss2074

Avg top 10

2,038

Participants

Titled players · 1

FM×1

Federations · 5 represented

🇳🇱Netherlands×61

🇩🇪Germany×5

🇧🇪Belgium×2

🇲🇩Moldova×1

🇦🇫Afghanistan×1

Top 3

🥇
Olaf Vlieger
🇳🇱NED·1914
7.0pts·2239perf+75.2
🥈
Rogier Van Egmond
🇳🇱NED·2017
7.0pts·2137perf+26.8
🥉
Mika Kleibeuker
🇳🇱NED·1933
7.0pts·2190perf+86.1

How it unfolded

Top 6 · 9 rounds

Tight race until R9; 3 players tied at 7.0/9, decided on Buchholz.

Co-leaders

Van Egmond7Vlieger7Kleibeuker7Kommer6.5Manschot6.5Timmermans6.5

R9 · TIEBREAK CLUSTER

3 players finish on 7.0/9. Vlieger takes the title on Buchholz Cut1 (47.5).

R9 · HEAD-TO-HEAD · WINNER VS 2ND

Rogier Van Egmond drew with Olaf Vlieger (White).

WIN STREAKS · 3 top finishers

Rogier Van Egmond 3 wins (R1–R3)Olaf Vlieger 4 wins (R3–R6)Mika Kleibeuker 4 wins (R6–R9)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Rogier Van Egmond	*	½	—	1
2Olaf Vlieger	½	*	—	½
3Mika Kleibeuker	—	—	*	—
4Bas Kommer	0	½	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	R8	R9	Pts	Bu C1	Bu	SB	Perf	Δ
1	Vlieger, Olaf	1914	NED	=6B	=43N	+17B	+22N	+26B	+8B	=4N	+5B	=2N	7.0	47.5	51.5	39.50	2239	+75.2
2	Van Egmond, Rogier	2017	NED	+52N	+40B	+49N	=8B	=10N	=9B	+15N	+4B	=1B	7.0	44.5	48.0	35.50	2137	+26.8
3	Kleibeuker, Mika	1933	NED	−40N	+64B	=30N	+50B	=6B	+42N	+14N	+13B	+11N	7.0	39.5	42.0	32.50	2190	+86.1
4	Kommer, Bas	2067	NED	+36N	+15B	+7N	+9B	=8N	=5B	=1B	−2N	+20B	6.5	50.0	54.5	37.75	2110	+11.2
5	Timmermans, Raymond	1996	NED	+68B	−10N	+44B	+28N	+27B	=4N	+32B	−1N	+8B	6.5	43.0	44.5	28.25	2110	+27.4
6	Winter, Sven	2041	NED	=1N	=51B	=66N	+34B	=3N	=45B	+25N	+9B	+18N	6.5	42.5	44.5	32.75	2092	+16.5
7	Manschot, Thomas	1901	NED	+41N	+24B	−4B	−26N	+43B	=17N	+29B	+32N	+22B	6.5	39.5	43.5	29.75	2175	+66.8
8	Edwardss, Dylan	2074	NED	+37B	+11N	+28B	=2N	=4B	−1N	+31B	+10B	−5N	6.0	48.0	52.5	32.25	2085	+2.4
9	Frederiks, Jesse	1763	NED	+21N	+38B	+22B	−4N	+19B	=2N	=16B	−6N	+24B	6.0	46.5	51.0	31.75	2128	+92.0
10	Etienne, Ghilon	1867	NED	+64N	+5B	+13N	=14B	=2B	=16N	=26B	−8N	+23B	6.0	45.5	48.0	30.75	2096	+109.2
11	Asefi, ZaheeruddeenFM	1956	AFG	+23B	−8B	+12N	−13B	+66N	+22N	+27B	+16N	−3B	6.0	44.5	46.5	28.00	2058	+25.0
12	De Vries, Fabian	1841	NED	+26B	−22N	−11B	+60N	=28B	+19N	=35B	+42N	+29B	6.0	38.5	41.5	26.00	2095	+122.8
13	Boersma, Jan	2051	NED	+27B	+18N	−10B	+11N	=32B	=31N	+23B	−3N	=16B	5.5	44.0	48.5	28.25	2008	-9.4
14	Mienis, Dennis	2007	NED	+53B	=61N	+19B	=10N	=15B	=23N	−3B	+27N	=17B	5.5	42.5	45.5	26.00	1993	-3.2
15	Markus, John Raymond	1952	NED	+58B	−4N	+56B	+41B	=14N	+29N	−2B	−20N	+26B	5.5	40.5	43.5	21.75	2035	+21.4
16	Guillaumond, Matthieu	1992	NED	=46N	+62B	+34N	=31B	+45N	=10B	=9N	−11B	=13N	5.5	40.5	43.0	24.00	1995	+2.8
17	Behr, Gregor	1978	GER	+59N	−49B	−1N	+40B	+44N	=7B	=45N	+31B	=14N	5.5	39.0	42.0	23.50	1987	+5.6
18	Heijmans, Stan	1951	NED	+67N	−13B	=33N	−30B	+46N	+49B	+50N	+26N	−6B	5.5	36.5	38.0	19.25	2033	+41.6
19	Jelic, Bruno	1960	NED	+70N	=66B	−14N	+57B	−9N	−12B	+46N	+41B	+28N	5.5	35.0	35.5	17.00	1939	-3.0
20	De Vries, Tobias	1947	NED	−66N	+59B	−41N	+62B	=49N	+30B	+33N	+15B	−4N	5.5	34.0	36.0	21.75	2014	+17.0
21	Zuiderweg, Edwin	1950	NED	−9B	−44N	=54B	=59N	+56B	+53N	=41N	+30B	+32B	5.5	33.0	36.0	20.75	1945	+0.8
22	Zhang, Xiheng	2010	NED	+47N	+12B	−9N	−1B	+36N	−11B	+40N	+45B	−7N	5.0	44.0	48.0	22.50	1939	-27.3
23	Hylarides, Charlie Ronald	1819	NED	−11N	=36B	+46N	+35B	+30N	=14B	−13N	+33B	−10N	5.0	41.0	45.0	22.50	2010	+89.2
24	Bakels, Anton	2015	NED	+39B	−7N	−27B	−53N	+57N	+51B	+37N	+35B	−9N	5.0	37.5	40.5	20.00	1873	-29.2
25	Ellenbroek, Ton	1962	NED	=69B	+54N	−29B	=63N	=58B	+28N	−6B	=34N	+42B	5.0	33.0	33.5	17.25	1944	-3.6
26	Trunz, Tamila	1971	GER	−12N	+47B	+51N	+7B	−1N	+37B	=10N	−18B	−15N	4.5	45.0	48.5	21.50	1864	-48.4
27	Van Ree, Thailo	1925	NED	−13N	+67B	+24N	+38B	−5N	+41B	−11N	−14B	=35N	4.5	41.5	43.0	17.25	1976	+12.8
28	Rutjes, Twan	1944	NED	+57N	+33B	−8N	−5B	=12N	−25B	+63N	+50B	−19B	4.5	40.0	42.5	16.50	1933	-2.0
29	Habig, Bryan	2031	NED	+60N	=34B	+25N	=45B	=31N	−15B	−7N	+49B	−12N	4.5	39.5	42.5	18.00	1917	-27.8
30	Aengenheister, Dennis	2017	GER	−61B	+53N	=3B	+18N	−23B	−20N	+39B	−21N	+62N	4.5	39.5	42.0	19.50	1906	-27.0
31	Ebels, Theo	1942	NED	=54B	+55N	+42B	=16N	=29B	=13B	−8N	−17N	=38B	4.5	39.0	42.5	19.25	1927	-3.4
32	Haans, Kaz	1970	NED	−49N	+65B	+40N	+66B	=13N	+33B	−5N	−7B	−21N	4.5	38.5	40.5	15.75	1920	-11.8
33	Gruenhagen, Marc, Dr.	2032	GER	+48B	−28N	=18B	+49B	+61N	−32N	−20B	−23N	+52B	4.5	36.0	39.0	16.75	1908	-30.0
34	Van t Veld, Menno	1945	NED	+56B	=29N	−16B	−6N	+68B	−35N	+62B	=25B	=37N	4.5	36.0	37.5	14.00	1934	-2.4
35	Geboers, Jimmy	1971	BEL	−63B	=68N	+55B	−23N	+39N	+34B	=12N	−24N	=27B	4.5	35.5	37.0	18.50	1853	-26.4
36	Baijens, Hans	1932	NED	−4B	=23N	+69B	=43N	−22B	+44N	−42B	=52N	+49B	4.5	35.5	36.0	14.25	1924	-1.8
37	Rademaker, Matthijs	1938	NED	−8N	+70B	=43B	=42N	+63B	−26N	−24B	+60N	=34B	4.5	33.5	34.0	12.25	1955	+8.4
38	Knuiman, Jan	1979	NED	+44B	−9N	+58B	−27N	F	−40B	+65N	+47B	=31N	4.5	32.5	32.5	15.75	1911	-14.0
39	Bloem, Mark	1896	NED	−24N	−41B	=70N	+56N	−35B	+57B	−30N	+64B	+50N	4.5	30.0	30.5	12.25	1896	+0.4
40	Schuricht, Paul Alexander	1889	GER	+3B	−2N	−32B	−17N	+54B	+38N	−22B	=43N	=41N	4.0	41.5	45.0	19.00	1914	+13.2
41	Kossen, Johannes	2026	NED	−7B	+39N	+20B	−15N	+53B	−27N	=21B	−19N	=40B	4.0	41.5	45.0	18.25	1881	-35.0
42	Ngangbam, Chingthang	1980	NED	=62N	+46B	−31N	=37B	+47N	−3B	+36N	−12B	−25N	4.0	39.5	42.0	16.00	1866	-55.6
43	Baarslag, Ed	2025	NED	=51N	=1B	=37N	=36B	−7N	+47B	−48N	=40B	=46N	4.0	38.5	42.0	17.75	1863	-36.0
44	Wille, Erik	1856	NED	−38N	+21B	−5N	+48N	−17B	−36B	=55N	=61N	+60B	4.0	37.0	40.0	15.75	1900	+17.6
45	Demiddele, Kevin	1970	BEL	=55B	+69N	+63B	=29N	−16B	=6N	=17B	−22N	−48B	4.0	37.0	37.5	13.00	1911	-13.2
46	Van Baaren, Joris	1871	NED	=16B	−42N	−23B	+69N	−18B	+55N	−19B	+63N	=43B	4.0	35.5	36.0	11.25	1839	-8.0
47	Luimes, Arent	1895	NED	−22B	−26N	+64B	+54N	−42B	−43N	+58B	−38N	+57B	4.0	31.5	34.0	12.00	1841	-12.0
48	De Witte, Wiebe	1909	NED	−33N	=57B	=62N	−44B	+64N	F	+43B	F	+45N	4.0	26.5	26.5	13.25	1944	+7.6
49	Cornelissen, Jort	1833	NED	+32B	+17N	−2B	−33N	=20B	−18N	+61B	−29N	−36N	3.5	41.5	44.5	15.75	1892	+13.4
50	Beijen, Mark	1980	NED	+65B	=63N	−61B	−3N	+52B	+58N	−18B	−28N	−39B	3.5	33.5	36.0	10.25	1814	-41.0
51	Morsch, Tjeerd	0	NED	=43B	=6N	−26B	−58N	+59B	−24N	−52B	+56N	=55B	3.5	33.0	36.0	13.00	1830	0.0
52	Schoenmakers, Paul	1897	NED	−2B	−56N	=59B	+55N	−50N	=65B	+51N	=36B	−33N	3.5	32.5	35.0	12.00	1686	-73.2
53	Janssen, Toon	1892	NED	−14N	−30B	+67N	+24B	−41N	−21B	F	+59N	=54B	3.5	32.5	32.5	11.25	1874	-4.2
54	Hardeman, Imara	1684	NED	=31N	−25B	=21N	−47B	−40N	=64B	=57N	+69B	=53N	3.5	32.0	32.5	10.00	1794	+46.0
55	Perlog, Cristian	0	MDA	=45N	−31B	−35N	−52B	+67N	−46B	=44B	+65N	=51N	3.5	30.5	32.0	9.75	1808	-9.1
56	Bosveld, Mattias	1726	NED	−34N	+52B	−15N	−39B	−21N	+59N	−60B	−51B	+69N	3.0	33.0	33.5	7.00	1817	+17.0
57	Van Renselaar, Lars	1696	NED	−28B	=48N	+68B	−19N	−24B	−39N	=54B	+67N	−47N	3.0	32.5	34.0	6.75	1760	+12.6
58	Koorevaar, Sarah-Joy	1803	NED	−15N	+60B	−38N	+51B	=25N	−50B	−47N	−62B	=65B	3.0	31.5	34.0	10.25	1734	-27.2
59	Blok, Ronald	1854	NED	−17B	−20N	=52N	=21B	−51N	−56B	+69N	−53B	+67B	3.0	31.5	32.0	6.50	1787	-15.8
60	Gielen, Wim	1908	NED	−29B	−58N	+65N	−12B	=62N	=63B	+56N	−37B	−44N	3.0	30.0	32.5	8.00	1740	-40.4
61	Van Jaarsveld, Henk	1899	NED	+30N	=14B	+50N	F	−33B	F	−49N	=44B	F	3.0	25.5	25.5	12.75	1954	+9.0
62	Andriessen, Bart Jan	1867	NED	=42B	−16N	=48B	−20N	=60B	F	−34N	+58N	−30B	2.5	34.0	35.5	8.50	1797	-14.6
63	Muskens, Mink	1854	NED	+35N	=50B	−45N	=25B	−37N	=60N	−28B	−46B	−64N	2.5	33.0	35.5	10.25	1762	-21.6
64	Avis, Fred	1811	NED	−10B	−3N	−47N	F	−48B	=54N	+67B	−39N	+63B	2.5	33.0	33.0	5.75	1712	-20.6
65	Wille, Ruud	1870	NED	−50N	−32N	−60B	=67B	+69N	=52N	−38B	−55B	=58N	2.5	27.0	27.5	4.50	1752	-24.8
66	Balde, Esko	1756	NED	+20B	=19N	=6B	−32N	−11B	F	F	F	F	2.0	32.0	32.0	11.50	1903	+35.2
67	Van der Velden, Rens	1782	NED	−18B	−27N	−53B	=65N	−55B	+69B	−64N	−57B	−59N	1.5	28.0	28.5	1.75	1602	-34.8
68	Van der Sleen, Jan	1876	NED	−5N	=35B	−57N	+70B	−34N	F	F	F	F	1.5	21.5	21.5	2.75	1737	-18.4
69	Lunek, Ferry	1826	NED	=25N	−45B	−36N	−46B	−65B	−67N	−59B	−54N	−56B	0.5	29.5	31.0	2.50	1406	-148.8
70	Wolters, Onno	1823	NED	−19B	−37N	=39B	−68N	F	F	F	F	F	0.5	16.0	16.0	2.25	1596	-39.6

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1De Vries, FabianNED
+122.8
6.0 pts · #7
2Etienne, GhilonNED
+109.2
6.0 pts · #8
3Frederiks, JesseNED
+92.0
6.0 pts · #11

Top rating losers

1Lunek, FerryNED
-148.8
0.5 pts · #69
2Schoenmakers, PaulNED
-73.2
3.5 pts · #67
3Ngangbam, ChingthangNED
-55.6
4.0 pts · #36

Biggest upsets

R9+252 Elo gap
Frederiks, Jesse1763 beat Bakels, Anton2015
R3+247 Elo gap
Frederiks, Jesse1763 beat Zhang, Xiheng2010
R2+216 Elo gap
Frederiks, Jesse1763 beat Knuiman, Jan1979