Dutch Open 2025 - Vierkampen

Team Round-RobinStandard

89 players participated in this 3-round tournament, held from 28 Jul 2025 to 30 Jul 2025 in Dieren, Netherlands. 3 titled players from 2 federations. Top 10 Elo average was 2135, and top seed was Rob Bertholee (🇳🇱 NED, FM, 2308).

The biggest upset came in round 3: Dominick Burger (1514) beat Peter Schillemans (1705), a +191-point gap.

Location

🇳🇱Dieren, Netherlands

Dates

28 Jul 2025 → 30 Jul 2025

Time control

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

System

Round-robin · 3 rounds

Top seed

🇳🇱FMRob Bertholee2308

Avg top 10

2,135

Participants

Titled players · 3

FM×2

CM×1

Federations · 2 represented

🇳🇱Netherlands×74

🇩🇪Germany×2

Top 3

🥇
FIDE 1098608
—
3.0pts·1831perf0.0
🥈
Job Bernards
🇳🇱NED
3.0pts·1848perf0.0
🥉
Jan Willem Van Capelleveen
🇳🇱NED·1499
3.0pts·2285perf+19.2

Standings

Click row to expand · Cmd+click name for new tab

#	Player	Fed	Elo	Pts	Avg opp.	Perf	Δ Elo
11	FIDE 1098608	—	0	3.0	1791	1831	0.0
16	Bernards, Job	🇳🇱NED	0	3.0	1808	1848	0.0
49	Van Capelleveen, Jan Willem	🇳🇱NED	1499	3.0	1485	2285	+19.2
1	Van der Molen, Jarich	🇳🇱NED	1810	3.0	1808	2608	+59.6
2	Hoogeveen, Rienk	🇳🇱NED	1961	3.0	1907	2707	+25.6
12	Amkreutz, Mitch	🇳🇱NED	1671	3.0	1763	2563	+49.6
45	Boers, Benjamin	🇳🇱NED	1770	2.5	1633	2433	+12.8
3	Van den Heuvel, Annelies	🇳🇱NED	1732	2.5	1754	2027	+21.8
5	Schermer, Anton	🇳🇱NED	1812	2.5	1728	2001	+13.0
19	Van Keulen, Koen	🇳🇱NED	0	2.5	1845	1865	0.0
61	Kumar, Prayan Sai	🇳🇱NED	1895	2.5	1794	2594	+14.4
36	Van der Meer, Henk	🇳🇱NED	1825	2.5	1810	2003	+9.2
4	Burger, Dominick	🇳🇱NED	1514	2.5	1704	1977	+69.6
6	CMDe Boer, Bas	🇳🇱NED	2118	2.5	2100	2373	+18.4
39	Van Keulen, Kees	🇳🇱NED	0	2.0	1492	1492	0.0
56	Toby, Almer	🇳🇱NED	1810	2.0	1771	2571	+9.0
33	Van Eijndhoven, Piet	🇳🇱NED	1969	2.0	1884	2077	+5.2
8	Maes, Djad	🇳🇱NED	2117	2.0	2220	2345	+18.0
15	FMBertholee, Rob	🇳🇱NED	2308	2.0	2156	2281	-1.0
40	Krosenbrink, Marcel	🇳🇱NED	1890	2.0	1923	1923	+1.8
51	FIDE 40111679	—	0	2.0	1702	1702	0.0
46	Lebbink, Albert	🇳🇱NED	0	2.0	1525	1545	0.0
57	FIDE 40122140	—	0	2.0	1525	1545	0.0
7	Van Houwelingen, Leo	🇳🇱NED	1951	2.0	1876	2001	+3.8
14	Westerhof, Fleur	🇳🇱NED	1951	2.0	1915	2040	+14.0
9	Koppenens, Oscar	🇳🇱NED	2000	2.0	2050	2175	+17.8
10	Schut, Peter	🇳🇱NED	1852	2.0	1827	1952	+8.0
13	Ekkelboom, Berd	🇳🇱NED	1845	2.0	1829	1954	+8.6
83	Van Staden ten Brink, Louis	🇳🇱NED	0	2.0	1695	895	0.0
52	FIDE 40111652	—	0	2.0	1565	1585	0.0
31	FIDE 40122093	—	0	1.5	1808	1828	0.0
50	Von Kreyfelt, Ernst	🇳🇱NED	1851	1.5	1765	2565	+7.6
17	Maters, Arthur	🇳🇱NED	2105	1.5	2224	2224	+9.4
70	Friesen, Philippe	🇳🇱NED	1825	1.5	1930	1737	-7.0
24	Strating, Henk	🇳🇱NED	1984	1.5	1900	1900	-13.6
26	Gouma, Ronald	🇳🇱NED	1834	1.5	1800	1800	-2.8
63	Rijnders, Nanno	🇳🇱NED	1717	1.5	1740	1547	-17.6
67	FIDE 40122000	—	0	1.5	1525	1525	0.0
18	Riechenberg, Sebastian	🇩🇪GER	2027	1.5	2041	2041	+1.6
21	Veenendaal, Loek	🇳🇱NED	1929	1.5	1923	1923	-0.6
25	Homs, Guust	🇳🇱NED	2146	1.5	2091	2091	-4.6
34	De Man, Arno	🇳🇱NED	1725	1.5	1633	1633	-14.4
23	Bodaan, Ton	🇳🇱NED	1866	1.5	1904	1904	+3.2
29	Veerman, Rien	🇳🇱NED	1855	1.5	1908	1908	+8.8
30	Schleipfenbauer, Frank	🇳🇱NED	2125	1.5	2008	2008	-9.4
28	Hollander, Bert	🇳🇱NED	1878	1.5	1940	1940	+10.0
35	De Valk, Jo	🇳🇱NED	0	1.5	1815	1815	0.0
20	Van Meurs, Rob	🇳🇱NED	1970	1.5	1946	1946	-2.0
27	Zeeman, Goswin	🇳🇱NED	1922	1.5	1962	1962	+3.4
32	Noordkamp, Wouter	🇳🇱NED	1974	1.5	1945	1945	-2.4
37	Viersma, Murk	🇳🇱NED	1943	1.5	1955	1955	+1.0
22	Zondag, Jason	🇳🇱NED	1914	1.5	1952	2145	+10.0
66	Husers, Yannic	🇳🇱NED	1943	1.5	1957	1764	-9.4
79	Lindeboom, Fokke	🇳🇱NED	1771	1.0	1810	1010	-9.0
89	Bertholee, Arjuna	🇳🇱NED	1485	1.0	1499	699	-19.2
69	Plooijer, Johan	🇳🇱NED	1808	1.0	1694	1501	-16.0
48	Gussinklo, Ben	🇳🇱NED	1856	1.0	1942	1817	-3.0
53	El Khaddari, Lina	🇳🇱NED	1815	1.0	1807	1682	-21.2
81	Au, Willy	🇳🇱NED	1633	1.0	1770	970	-12.8
60	Rol, Art	🇳🇱NED	1809	1.0	1841	1716	-14.4
42	Otte, Marco	🇳🇱NED	1825	1.0	1810	1810	-1.6
41	Schillemans, Peter	🇳🇱NED	1705	1.0	1640	1515	-30.0
43	Van Helvoort, Rob	🇳🇱NED	2100	1.0	2106	1981	-9.4
47	Hausrath, Frederick Noah	🇩🇪GER	1681	1.0	1648	1523	-25.2
59	Groen, Jari	🇳🇱NED	2054	1.0	2122	1997	-4.4
74	Van den Burg, Ralf	🇳🇱NED	1795	1.0	1825	1632	-8.4
44	Van Ginkel, Henk	🇳🇱NED	1827	1.0	1835	1710	-9.4
38	Reulink, Fred	🇳🇱NED	1939	1.0	1919	1794	-11.4
58	Buijnsters, Floris	🇳🇱NED	1906	1.0	1891	1766	-11.4
54	Lopes, Samuel	🇳🇱NED	1997	1.0	2051	1926	-11.6
87	FIDE 40100774	—	0	1.0	1565	765	0.0
55	Kools, Jasper	🇳🇱NED	1960	1.0	1948	1948	-0.6
80	Vos, Roald	🇳🇱NED	0	1.0	1565	765	0.0
88	FIDE 40122107	—	0	1.0	1695	895	0.0
62	FIDE 1091832	—	0	1.0	1695	1715	0.0
72	Remie, Peter	🇳🇱NED	1763	0.5	1744	1471	-21.4
73	Hollander, Sandra	🇳🇱NED	0	0.5	1845	1652	0.0
77	Koeweiden, Theo	🇳🇱NED	1688	0.5	1769	1496	-13.4
82	Burer, Humphrey	🇳🇱NED	1794	0.5	1895	1095	-7.2
71	FIDE 40111687	—	0	0.5	1702	1509	0.0
64	Molewijk, Tom	🇳🇱NED	1776	0.5	1820	1547	-32.8
68	Burer, Audry	🇳🇱NED	1882	0.5	1934	1661	-15.8
76	Van den Berg, Henk	🇳🇱NED	0	0.5	1732	1459	0.0
65	Breij, Wouter	🇳🇱NED	0	0.5	1912	1639	0.0
75	FMTerlouw, Wouter	🇳🇱NED	2246	0.5	2177	1904	-50.8
78	FIDE 40111644	—	0	0.0	1791	991	0.0
84	FIDE 40122158	—	0	0.0	1492	692	0.0
86	Tibbe, Marinus	🇳🇱NED	1765	0.0	1851	1051	-15.2
85	FIDE 40121976	—	0	0.0	1943	1143	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Burger, DominickNED
+69.6
2.5 pts · #4
2Van der Molen, JarichNED
+59.6
3.0 pts · #1
3Amkreutz, MitchNED
+49.6
3.0 pts · #12

Top rating losers

1Terlouw, WouterFMNED
-50.8
0.5 pts · #75
2Molewijk, TomNED
-32.8
0.5 pts · #64
3Schillemans, PeterNED
-30.0
1.0 pts · #41

Biggest upsets

R3+191 Elo gap
Burger, Dominick1514 beat Schillemans, Peter1705
R2+167 Elo gap
Burger, Dominick1514 beat Hausrath, Frederick Noah1681
R2+137 Elo gap
Amkreutz, Mitch1671 beat Plooijer, Johan1808