UniClass Amsterdam Science Park Chess Tournament 2025 - B

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75 players participated in this 9-round tournament, held from 05 Jul 2025 to 13 Jul 2025 in Amsterdam, Netherlands. 1 titled players from 7 federations. Top 10 Elo average was 1936, and top seed was Niek Oostvogels (🇳🇱 NED, 1975).

Ryan Busa (🇳🇱 NED, 1839) won with 8.0/9, ahead of Reddy Sushrutha (7.0) and Anay Agarwal (6.5). Busa took the lead from round 7.

The biggest upset came in round 3: Dhanesh Bajnath (1732) beat Niek Oostvogels (1975), a +243-point gap.

Location

🇳🇱Amsterdam, Netherlands

Dates

05 Jul 2025 → 13 Jul 2025

Time control

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

System

Swiss · 9 rounds

Top seed

🇳🇱Niek Oostvogels1975

Avg top 10

1,936

Participants

Titled players · 1

CM×1

Federations · 7 represented

🇳🇱Netherlands×67

🇬🇧England×3

🇲🇩Moldova×1

🇹🇷Turkiye×1

🇮🇳India×1

FIDE (no federation)×1

🇮🇹Italy×1

Top 3

🥇
Ryan Busa
🇳🇱NED·1839
8.0pts·2201perf+65.6
🥈
Reddy Sushrutha
🇮🇳IND·1865
7.0pts·1993perf+20.6
🥉
CMAnay Agarwal
🇬🇧ENG·1855
6.5pts·1984perf+62.0

How it unfolded

Top 6 · 9 rounds

Ryan Busa led from R7; +1.0-point edge over the runner-up.

Co-leaders

Busa8Sushrutha7Bodicker6.5Saricicek6.5Kiszkiel6.5Agarwal6.5— ex-leaders:Boldermanled R4, #7

R6 · LEADER CHANGE10 Jul

CM Anay Agarwal takes the sole lead (5.5/6).

WIN STREAKS · 2 top finishers

Ryan Busa 3+5 wins (R1–R3, R5–R9)Reddy Sushrutha 4 wins (R6–R9)

R5 · LATE SURGE

Rob Bodicker was #16 at R5, climbed to #2 over the final stretch.

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Ryan Busa	*	—	1	—
2Reddy Sushrutha	—	*	—	—
3Rob Bodicker	0	—	*	—
4Ahmet Furkan Saricicek	—	—	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	R8	R9	Pts	Bu C1	Bu	SB	Perf	Δ
1	Busa, Ryan	1839	NED	+74B	+32N	+5N	−12B	+30N	+9B	+3N	+4B	+8N	8.0	46.0	46.5	41.00	2201	+65.6
2	Sushrutha, Reddy	1865	IND	+70N	=30B	=26N	+52B	−9N	+63B	+34N	+18B	+3N	7.0	36.5	38.0	27.50	1993	+20.6
3	Agarwal, AnayCM	1855	ENG	+36B	=65N	+51B	+17N	+8N	+10B	−1B	+11N	−2B	6.5	45.0	47.5	31.25	1984	+62.0
4	Koelewijn, Alex	1942	NED	=35N	+27B	−10B	+57N	+37B	+15N	+6B	−1N	+13B	6.5	44.0	47.0	31.00	1958	+3.0
5	Bodicker, Rob	1921	NED	+25B	+37N	−1B	F	+31N	+17N	=26B	+10B	+9N	6.5	43.0	43.0	32.75	2057	+25.4
6	Saricicek, Ahmet Furkan	1843	TUR	+64B	=7N	+65B	+63N	+12N	−8B	−4N	+28B	+11B	6.5	39.5	42.0	26.25	1977	+65.2
7	Kiszkiel, David	1705	NED	+69B	=6B	+58N	=14N	=34B	−11N	+39B	+20B	+22N	6.5	38.5	40.5	27.00	2027	+154.0
8	Bolderman, Joppe	1899	NED	+42B	+21N	+34B	+19N	−3B	+6N	−11B	+26N	−1B	6.0	45.0	49.0	29.00	1959	+14.0
9	Van Zijl, Joris	1756	NED	=24N	+55B	=20N	+68B	+2B	−1N	+59B	+19N	−5B	6.0	43.0	45.0	25.50	1959	+49.0
10	Reemst, Marnix	1841	NED	+52B	=41B	+4N	+47N	=19B	−3N	+27B	−5N	+23B	6.0	42.0	45.5	28.00	1982	+60.4
11	Lee, Jungbin	1895	NED	+28N	−68B	+53N	=29B	+38N	+7B	+8N	−3B	−6N	5.5	42.0	44.0	26.75	1891	-0.4
12	Alexandrov, Matvey	1870	FID	+62B	=17N	+59B	+1N	−6B	−19N	=13B	+40N	=26B	5.5	41.5	44.5	25.50	1881	+3.0
13	Bajnath, Dhanesh	1732	NED	−21B	+25N	+72N	−18B	+46N	+35B	=12N	+14B	−4N	5.5	40.5	42.0	22.75	2005	+116.0
14	Veerman, Jan	1871	NED	+49N	+56B	=63N	=7B	−26B	=34N	+17B	−13N	+29B	5.5	36.5	39.0	22.50	1838	-7.6
15	Damen, Josephine	1869	NED	=57N	−26B	+70N	+60B	+29N	−4B	−28N	+46B	+18N	5.5	35.0	36.5	19.50	1846	-8.8
16	Kakrana, Reyansh	1841	NED	−30N	+49B	−29N	=28B	+56N	F	+51B	+27N	+19B	5.5	33.0	33.0	21.75	1986	+44.8
17	Adavatkar, Rugved	1800	NED	+22N	=12B	+41N	−3B	+45N	−5B	−14N	+44B	=20N	5.0	42.0	46.0	22.25	1941	+34.0
18	Perlog, Cristian	0	MDA	−32B	+64N	+23B	+13N	+27B	=26N	=19B	−2N	−15B	5.0	41.5	44.0	22.25	1835	0.0
19	Wijgers, Ben	1919	NED	+60N	+31B	+68N	−8B	=10N	+12B	=18N	−9B	−16N	5.0	41.5	43.5	20.50	1871	-10.0
20	Meeuwissen, Morris	1864	NED	+66B	=51N	=9B	−34N	=40B	+60N	+29B	−7N	=17B	5.0	36.5	38.5	18.75	1809	-27.6
21	Cornelissen, Jort	1833	NED	+13N	−8B	−52N	=22B	−28N	+73B	+64N	+50B	=33N	5.0	35.0	36.0	17.25	1828	-2.0
22	Verhoeven, Lars	1939	NED	−17B	=42N	=61B	=21N	=49B	+57N	+53B	+59N	−7B	5.0	33.5	36.5	17.25	1828	-53.2
23	Muskens, Mink	1854	NED	−56N	+28B	−18N	+66B	−50N	+65B	+52N	+34B	−10N	5.0	32.0	34.0	16.50	1859	0.0
24	Xu, Alex Z	1691	NED	=9B	−33N	−38B	−49N	+74N	=56B	+62B	+67N	+59B	5.0	29.0	29.5	13.00	1773	+36.0
25	Timmerman, Jan	1791	NED	−5N	−13B	−66N	+74B	−58N	+75B	+65N	+43B	+40N	5.0	28.0	28.5	11.50	1814	+4.6
26	Balde, Esko	1756	NED	=45B	+15N	=2B	F	+14N	=18B	=5N	−8B	=12N	4.5	45.0	47.0	25.00	1929	+66.8
27	Hoving, Julian	0	NED	+38B	−4N	+54N	+35B	−18N	+50B	−10N	−16B	=31N	4.5	39.0	42.5	17.25	1851	0.0
28	Menyah, Kwesi	1783	ENG	−11B	−23N	+74B	=16N	+21B	+72N	+15B	−6N	−32B	4.5	39.0	39.5	15.25	1865	+20.0
29	Actor, Ruben	1795	NED	−47B	+74N	+16B	=11N	−15B	+37N	−20N	+54B	−14N	4.5	38.5	39.0	16.25	1854	+28.8
30	Zdravkovic, Andrija	0	NED	+16B	=2N	=45B	+32N	−1B	=39N	+41B	F	F	4.5	37.0	37.0	21.50	1921	0.0
31	Tijssens, Rob	1824	NED	+75B	−19N	=32B	+43N	−5B	+42N	=40B	−47N	=27B	4.5	36.5	37.0	15.00	1832	+1.8
32	Van Nie, Jonathan	1935	NED	+18N	−1B	=31N	−30B	F	−53B	+56N	+63B	+28N	4.5	35.5	35.5	17.25	1846	-13.2
33	Teo, Kir	1798	NED	=44N	+24B	−47N	=41B	F	=51N	=45B	+39N	=21B	4.5	33.5	33.5	19.25	1894	+21.4
34	Van der Velden, Rens	1782	NED	+58N	+67B	−8N	+20B	=7N	=14B	−2B	−23N	−45B	4.0	42.0	44.0	16.00	1763	-5.4
35	Colombo, Reymund	1801	ITA	=4B	=43N	+39B	−27N	+36B	−13N	−47B	−51N	+64N	4.0	36.0	38.5	15.75	1799	-0.6
36	Veerman, Henk	1754	NED	−3N	=38N	+48B	=46B	−35N	=44B	=37N	+58B	F	4.0	33.5	33.5	15.00	1845	+20.0
37	Veldhuysen, Klaas	1839	NED	+71N	−5B	=56N	+73B	−4N	−29B	=36B	−42N	+62B	4.0	33.0	34.0	9.00	1752	-21.0
38	Koelmans, Jan Willem	1806	NED	−27N	=36B	+24N	+56B	−11B	−40N	+61B	=45N	F	4.0	33.0	33.0	15.00	1839	+6.6
39	Pack, James	1856	ENG	+50N	−63B	−35N	+53B	+65N	=30B	−7N	−33B	=55N	4.0	32.5	35.0	13.50	1724	-29.4
40	Plukkel, Simon	1766	NED	−67N	−54B	+75N	+58B	=20N	+38B	=31N	−12B	−25B	4.0	32.5	33.0	12.25	1822	+12.2
41	De Heer, Peter	1969	NED	+61B	=10N	−17B	=33N	−59B	+49N	−30N	+57B	F	4.0	32.5	32.5	14.75	1846	-21.8
42	Groeneveld, Henry	1785	NED	−8N	=22B	=44N	=54B	+71N	−31B	=58N	+37B	F	4.0	31.5	31.5	13.25	1861	+16.4
43	Van Renselaar, Lars	1696	NED	=53N	=35B	=46N	−31B	−60N	=55B	+49B	−25N	+61B	4.0	31.0	34.0	14.00	1761	+16.4
44	Piel, Ruben	1930	NED	=33B	−59N	=42B	=61N	=57B	=36N	+60B	−17N	=51B	4.0	30.0	33.0	14.00	1737	-45.8
45	Van den Berg, Cees	1861	NED	=26N	+57B	=30N	F	−17B	F	=33N	=38B	+34N	4.0	29.5	29.5	15.75	1842	-2.6
46	Koes, Richard	1826	NED	−65B	+66N	=43B	=36N	−13B	F	+71N	−15N	+50B	4.0	28.5	28.5	11.00	1754	-15.8
47	Holwijn, Melvin	1929	NED	+29N	F	+33B	−10B	F	F	+35N	+31B	F	4.0	23.5	23.5	17.50	2052	+14.2
48	Van der Werf, Peter	1825	NED	−63N	=70B	−36N	−50B	=55N	=66B	+75N	+71B	=54N	4.0	22.0	22.5	7.25	1718	-25.8
49	Uitermark, Imre	1774	NED	−14B	−16N	F	+24B	=22N	−41B	−43N	+66B	+63N	3.5	33.5	33.5	12.00	1768	-4.8
50	De Ruyter, Wim	1754	NED	−39B	−69N	+62B	+48N	+23B	−27N	=54B	−21N	−46N	3.5	33.0	35.0	13.75	1785	+6.4
51	Opdam, Dani	1736	NED	+54N	=20B	−3N	F	F	=33B	−16N	+35B	=44N	3.5	33.0	33.0	14.25	1846	+41.6
52	Xu, Nicholas M	1706	NED	−10N	F	+21B	−2N	+67B	−59N	−23B	+53N	=70B	3.5	33.0	33.0	11.25	1720	+3.6
53	Avis, Fred	1811	NED	=43B	=73N	−11B	−39N	+62B	+32N	−22N	−52B	=66N	3.5	31.5	32.5	11.00	1726	-21.0
54	Wielemaker, Marco	1836	NED	−51B	+40N	−27B	=42N	+64B	F	=50N	−29N	=48B	3.5	30.5	30.5	12.25	1773	-24.8
55	El Khaddari, Lina	1815	NED	F	−9N	−57B	−64N	=48B	=43N	+70B	+60N	=39B	3.5	28.0	28.0	10.50	1732	-37.2
56	De Bock, Gijsbert	1751	NED	+23B	−14N	=37B	−38N	−16B	=24N	−32B	−62N	+74N	3.0	36.5	37.0	10.00	1692	-14.0
57	Van den Berg, Leon	1768	NED	=15B	−45N	+55N	−4B	=44N	−22B	+72B	−41N	F	3.0	34.0	34.0	9.75	1826	+20.4
58	Lee, Jungmin	1881	NED	−34B	+62N	−7B	−40N	+25B	=61N	=42B	−36N	F	3.0	33.5	33.5	11.50	1683	-88.0
59	Mittal, Aashray	1785	NED	F	+44B	−12N	F	+41N	+52B	−9N	−22B	−24N	3.0	33.0	33.0	11.50	1787	-0.8
60	Van der Vlis, Peter	1789	NED	−19B	+75N	F	−15N	+43B	−20B	−44N	−55B	+71N	3.0	29.0	29.0	6.00	1730	-27.6
61	Pelt, Hans	1802	NED	−41N	=71B	=22N	=44B	=73N	=58B	−38N	=64B	−43N	3.0	28.0	29.0	8.50	1698	-25.0
62	Luong, Thao	1772	NED	−12N	−58B	−50N	+75B	−53N	+74B	−24N	+56B	−37N	3.0	28.0	28.5	4.00	1658	-55.2
63	Varnica, Aleks	1723	NED	+48B	+39N	=14B	−6B	F	−2N	F	−32N	−49B	2.5	35.0	35.0	10.75	1751	+4.2
64	Boonstra, Elwin	1750	NED	−6N	−18B	F	+55B	−54N	+67N	−21B	=61N	−35B	2.5	32.5	32.5	7.00	1629	-36.4
65	Peper, Jeroen	1730	NED	+46N	=3B	−6N	F	−39B	−23N	−25B	F	+75N	2.5	31.5	31.5	7.75	1717	-3.0
66	Belien, Roan	1759	NED	−20N	−46B	+25B	−23N	−72B	=48N	−67B	−49N	=53B	2.0	32.0	33.5	8.75	1647	-46.0
67	Gorbunov, Ivan	0	NED	+40B	−34N	−69B	F	−52N	−64B	+66N	−24B	F	2.0	23.0	23.0	6.00	1596	0.0
68	Mohammad, Farmaan	1806	NED	+72B	+11N	−19B	−9N	F	F	F	F	F	2.0	18.0	18.0	7.00	1886	+16.8
69	Nieland, Wim	1820	NED	−7N	+50B	+67N	F	F	F	F	F	F	2.0	16.5	16.5	5.50	1730	-5.0
70	Oudejans, Martin	1763	NED	−2B	=48N	−15B	=72N	F	−71B	−55N	F	=52N	1.5	26.5	26.5	4.50	1597	-28.2
71	Buschman, Marten	1736	NED	−37B	=61N	F	F	−42B	+70N	−46B	−48N	−60B	1.5	23.5	23.5	3.00	1574	-27.0
72	Oostvogels, Niek	1975	NED	−68N	F	−13B	=70B	+66N	−28B	−57N	F	F	1.5	18.5	18.5	2.75	1576	-61.4
73	Buzink, Maurice	1700	NED	F	=53B	F	−37N	=61B	−21N	F	F	F	1.0	15.5	15.5	3.25	1628	-6.8
74	Lemkes, Herman	1744	NED	−1N	−29B	−28N	−25N	−24B	−62N	F	=75B	−56B	0.5	33.5	33.5	0.25	1322	-65.0
75	Dekker, Wim	1707	NED	−31N	−60B	−40B	−62N	F	−25N	−48B	=74N	−65B	0.5	26.5	26.5	0.25	1336	-54.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Kiszkiel, DavidNED
+154.0
6.5 pts · #4
2Bajnath, DhaneshNED
+116.0
5.5 pts · #12
3Balde, EskoNED
+66.8
4.5 pts · #35

Top rating losers

1Lee, JungminNED
-88.0
3.0 pts · #55
2Lemkes, HermanNED
-65.0
0.5 pts · #75
3Oostvogels, NiekNED
-61.4
1.5 pts · #68

Biggest upsets

R3+243 Elo gap
Bajnath, Dhanesh1732 beat Oostvogels, Niek1975
R9+234 Elo gap
Kiszkiel, David1705 beat Verhoeven, Lars1939
R7+207 Elo gap
Van den Berg, Leon1768 beat Oostvogels, Niek1975