Oscar Romero Open Hoorns Kampioenschap 2025 - C

Open SwissStandard

57 players participated in this 6-round tournament, held from 22 Aug 2025 to 24 Aug 2025 in Hoorn, Netherlands. 2 federations represented. Top 10 Elo average was 1701, and top seed was Tom Van Veen (🇳🇱 NED, 1746).

Sem Visser (🇳🇱 NED, 1532) won with 6.0/6, ahead of Liam Doevendans (5.0) and Tobias Roels (5.0). Visser took the lead from round 4.

The biggest upset came in round 5: FIDE 40121569 (1000) beat Adam Saad Ismael (1600), a +600-point gap.

Location

🇳🇱Hoorn, Netherlands

Dates

22 Aug 2025 → 24 Aug 2025

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 6 rounds

Top seed

🇳🇱Tom Van Veen1746

Avg top 10

1,701

Participants

Federations · 2 represented

🇳🇱Netherlands×50

FIDE (no federation)×1

Top 3

🥇
Sem Visser
🇳🇱NED·1532
6.0pts·1767perf0.0
🥈
Liam Doevendans
🇳🇱NED·1725
5.0pts·1586perf0.0
🥉
Tobias Roels
🇳🇱NED·1723
5.0pts·1837perf+26.0

How it unfolded

Top 6 · 6 rounds

Sem Visser led from R4; +1.0-point edge over the runner-up.

Co-leaders

Visser6Roels5Doevendans5Bergshoeff4.5Gorbunov4Boughdir4

R4–R6 · LEAD HELD

Sem Visser never relinquished the lead after R4; final gap +1.0 over the runner-up.

WIN STREAKS · 3 top finishers

Sem Visser 6 wins (R1–R6)Tobias Roels 3 wins (R4–R6)Liam Doevendans 3 wins (R4–R6)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Sem Visser	*	—	—	1
2Tobias Roels	—	*	—	—
3Liam Doevendans	—	—	*	—
4Bert Bergshoeff	0	—	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	Pts	Bu C1	Bu	SB	Perf	Δ
1	Visser, Sem	1532	NED	+22B	+8N	+10B	+5B	+4N	+15N	6.0	20.0	23.0	23.00	1767	0.0
2	Doevendans, Liam	1725	NED	+23N	+?B	−5N	+12B	+7N	+9B	5.0	19.0	19.0	15.00	1586	0.0
3	Roels, Tobias	1723	NED	+43B	+19N	−6B	+18N	+13B	+5N	5.0	18.0	20.0	16.00	1837	+26.0
4	Bergshoeff, Bert	1665	NED	+45B	+29N	+18B	=6N	−1B	+17N	4.5	19.0	20.5	12.50	1937	+27.0
5	Aarten, Marjolein	1634	NED	+47B	+39N	+2B	−1N	+11N	−3B	4.0	22.0	23.5	12.50	1607	-1.4
6	Sluis, Gerton	1609	NED	+26B	+21N	+3N	=4B	=15B	−12N	4.0	20.0	23.0	15.00	1831	+36.0
7	Bosma, Pieter	1537	NED	+27B	−10N	+28B	+8N	−2B	+30N	4.0	19.0	21.5	12.50	2445	+26.0
8	Liyanage, Nuwan	1645	NED	+9N	−1B	+38N	−7B	+54N	+21B	4.0	19.0	19.0	9.00	1513	-14.4
9	Boughdir, Ilias	1500	NED	−8B	+22N	+34B	+10N	+32B	−2N	4.0	18.5	21.0	12.00	1695	0.0
10	FIDE 40120597	1650	—	+46N	+7B	−1N	−9B	+23N	+?B	4.0	18.5	18.5	8.50	1557	0.0
11	Bouman, Lionel	1661	NED	=40B	=20N	+39B	+21N	−5B	+18N	4.0	15.0	17.0	10.50	1580	0.0
12	FIDE 40122352	1654	—	F	+44N	+49B	−2N	+20B	+6B	4.0	14.5	14.5	9.50	1616	0.0
13	Pereira, Hans	1616	NED	+38N	F	+55B	+33B	−3N	+26B	4.0	12.5	12.5	7.50	1753	+22.4
14	Gorbunov, Ivan	1649	NED	−39B	F	+41N	+55N	+16B	+19B	4.0	10.5	10.5	8.50	2384	+49.2
15	Regterschot, Frederieke	1730	NED	F	+17N	+35B	+48B	=6N	−1B	3.5	17.5	17.5	9.50	1888	+21.6
16	Broekman, Lode	1681	NED	−19B	+40N	+29B	=20N	−14N	+31B	3.5	15.0	17.0	8.50	1580	-27.6
17	Van der Kraan, Lennart	1581	NED	=24N	−15B	+54N	+50B	+33N	−4B	3.5	14.5	14.5	5.00	1702	+32.8
18	Guliyev, Ingilab	1564	FID	+32B	+28N	−4N	−3B	+24N	−11B	3.0	19.5	22.0	8.50	1708	+30.8
19	Ngangbam, Malem	1560	NED	+16N	−3B	F	+31N	+37B	−14N	3.0	17.5	17.5	8.50	1733	+46.8
20	Regterschot, Alexander	1543	NED	F	=11B	+25N	=16B	−12N	+32N	3.0	17.0	17.0	9.25	1956	+62.8
21	FIDE 40121569	1000	—	+30N	−6B	+?N	−11B	+35B	−8N	3.0	17.0	17.0	5.00	827	0.0
22	Ozdemir, Orhan Galip	1659	NED	−1N	−9B	+51N	+38B	−30B	+40N	3.0	16.5	17.5	5.00	2324	+25.2
23	FIDE 40122417	1575	—	−2B	+47N	=32B	=35N	−10B	+54N	3.0	15.5	15.5	4.00	1615	0.0
24	Van Veen, Tom	1746	NED	=17B	=34N	=31B	=30N	−18B	+36N	3.0	14.0	16.5	8.00	1501	-54.0
25	Demarteau, Marijn	1671	NED	−29B	+45N	−20B	=36N	=40B	+44N	3.0	11.5	13.0	5.25	1423	-40.0
26	Van der Knaap, Thomas	1470	NED	−6N	+51B	F	+52N	+48B	−13N	3.0	11.5	11.5	3.50	1625	0.0
27	Koning, Jessica	1664	NED	−7N	=46B	−44B	+53N	+29B	=48N	3.0	11.0	11.5	4.50	1582	0.0
28	Hagiu, Eduard	1670	NED	+56N	−18B	−7N	+47B	−?N	+38B	3.0	10.5	10.5	3.50	1546	0.0
29	Hooijmans, Merijn	1554	NED	+25N	−4B	−16N	=34B	−27N	+50B	2.5	16.5	17.5	5.25	1665	+30.4
30	Van de Weerdhof, Erik	1585	NED	−21B	F	+46N	=24B	+22N	−7B	2.5	14.5	14.5	6.00	1647	0.0
31	Boesenkool, Roel	1589	NED	+53B	−33N	=24N	−19B	+42B	−16N	2.5	14.0	14.5	4.00	1344	-43.2
32	Glas, Susanne	1698	NED	−18N	+56B	=23N	+49B	−9N	−20B	2.5	14.0	14.0	2.50	1427	-43.6
33	Zijp, Dennis	1674	NED	+51N	+31B	F	−13N	−17B	=37N	2.5	13.5	13.5	4.75	1602	-20.0
34	Alayoubi, Nizar	1616	NED	F	=24B	−9N	=29N	=44B	+39N	2.5	13.0	13.0	5.50	1650	+3.6
35	Saad Ismael, Adam	1600	NED	+57N	=?B	−15N	=23B	−21N	=47B	2.5	11.0	11.0	2.25	1552	0.0
36	De Wit, Maria	1596	NED	−?N	−38B	+45N	=25B	+49N	−24B	2.5	10.5	10.5	4.00	1526	0.0
37	Au, Willy	1664	NED	F	F	+57B	+44N	−19N	=33B	2.5	7.0	7.0	2.75	1557	-16.8
38	Shah, Shanay	1489	NED	−13B	+36N	−8B	−22N	+46B	−28N	2.0	16.5	18.0	4.00	840	-35.6
39	Bovens, Berend	1500	NED	+14N	−5B	−11N	−?B	+56N	−34B	2.0	14.5	14.5	4.00	1612	0.0
40	Gulave, Devran	1534	NED	=11N	−16B	−50N	+54B	=25N	−22B	2.0	14.5	14.5	3.50	1354	0.0
41	Lont, Jordy	1510	NED	−48N	F	−14B	−42N	+45B	+52B	2.0	10.0	10.0	2.50	1610	+21.6
42	XU W, Sophia	1240	NED	−52B	F	−43N	+41B	−31N	+49B	2.0	8.5	8.5	3.00	1437	0.0
43	Bravenboer, Remco	1574	NED	−3N	F	+42B	F	+50N	F	2.0	8.0	8.0	3.00	1708	0.0
44	Van der Veen, Willem	1529	NED	F	−12B	+27N	−37B	=34N	−25B	1.5	15.0	15.0	4.25	1377	0.0
45	Gooijers, Richard	1548	NED	−4N	−25B	−36B	=46N	−41N	+56B	1.5	13.5	13.5	0.75	1406	-14.4
46	De Best, Harry	1502	NED	−10B	=27N	−30B	=45B	−38N	=53N	1.5	13.0	13.5	2.50	1325	0.0
47	Bruin, Michel	1490	NED	−5N	−23B	F	−28N	+55B	=35N	1.5	12.5	12.5	1.25	834	-12.4
48	Aravindhan, Aadvik	1656	NED	+41B	F	F	−15N	−26N	=27B	1.5	11.5	11.5	3.50	1620	-3.8
49	Coenradie, Mark	1572	NED	F	+50B	−12N	−32N	−36B	−42N	1.0	12.0	12.0	1.00	1696	0.0
50	Swart, Alex	1693	NED	F	−49N	+40B	−17N	−43B	−29N	1.0	11.0	11.0	2.00	768	-53.6
51	Koppenens, Ben	1559	NED	−33B	−26N	−22B	F	F	+55N	1.0	8.5	8.5	0.00	867	-14.0
52	Melchers, Bert-Jan	1586	NED	+42N	F	F	−26B	F	−41N	1.0	7.0	7.0	2.00	710	-12.0
53	FIDE 1080067	1336	—	−31N	F	F	−27B	F	=46B	0.5	7.0	7.0	0.75	789	0.0
54	FIDE 1062638	1409	—	−?N	F	−17B	−40N	−8B	−23B	0.0	12.5	12.5	0.00	813	0.0
55	Yanamala, Mahatej Reddy	1000	NED	F	F	−13N	−14B	−47N	−51B	0.0	10.5	10.5	0.00	779	0.0
56	Oosterhuis, Arend	1549	NED	−28B	−32N	F	F	−39B	−45N	0.0	9.0	9.0	0.00	823	-32.0
57	Schol, Yvonne	1435	NED	−35B	F	−37N	F	F	F	0.0	6.0	6.0	0.00	864	-8.4

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Regterschot, AlexanderNED
+62.8
3.0 pts · #9
2Gorbunov, IvanNED
+49.2
4.0 pts · #5
3Ngangbam, MalemNED
+46.8
3.0 pts · #7

Top rating losers

1Van Veen, TomNED
-54.0
3.0 pts · #26
2Swart, AlexNED
-53.6
1.0 pts · #51
3Glas, SusanneNED
-43.6
2.5 pts · #40

Biggest upsets

R5+600 Elo gap
1000 beat Saad Ismael, Adam1600
R3+599 Elo gap
1000 beat Huisman, Ton1599
R1+585 Elo gap
1000 beat Van de Weerdhof, Erik1585