XXVI Ketrzynski Festiwal Szachowy - Open A

Open SwissStandard

52 players participated in this 9-round tournament, held from 27 Dec 2025 to 31 Dec 2025 in Ketrzyn, Poland. 4 titled players. Top 10 Elo average was 2116, and top seed was Mieszko Mis (🇵🇱 POL, IM, 2395).

Patryk Chylewski (🇵🇱 POL, IM, 2283) won with 7.0/9, ahead of Marek Chomczyk (7.0) and Mieszko Mis (6.5). Chylewski won on tie-break after catching the field in the final round.

The biggest upset came in round 3: Mateusz Pancewicz (1597) beat Krzysztof Jurkiewicz (2020), a +423-point gap.

Location

🇵🇱Ketrzyn, Poland

Dates

27 Dec 2025 → 31 Dec 2025

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 9 rounds

Top seed

🇵🇱IMMieszko Mis2395

Avg top 10

2,116

Participants

Titled players · 4

IM×2

FM×1

CM×1

Federations · 1 represented

🇵🇱Poland×52

Top 3

🥇
IMPatryk Chylewski
🇵🇱POL·2283
7.0pts·2293perf+3.4
🥈
FMMarek Chomczyk
🇵🇱POL·2288
7.0pts·2272perf+2.2
🥉
IMMieszko Mis
🇵🇱POL·2395
6.5pts·2255perf-10.5

How it unfolded

Top 6 · 9 rounds

Tight race until R9; 2 players tied at 7.0/9, decided on Buchholz.

Co-leaders

Chomczyk7Chylewski7Mis6.5Malinowski6.5Fritz6Sternik6

R9 · TIEBREAK CLUSTER

2 players finish on 7.0/9. Chylewski takes the title on Buchholz Cut1 (48.0).

R5 · HEAD-TO-HEAD · WINNER VS 2ND

FM Marek Chomczyk drew with IM Patryk Chylewski (White).

WIN STREAKS · 3 top finishers

FM Marek Chomczyk 3 wins (R1–R3)IM Patryk Chylewski 4 wins (R1–R4)IM Mieszko Mis 3+3 wins (R1–R3, R6–R8)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1FMMarek Chomczyk	*	½	½	1
2IMPatryk Chylewski	½	*	0	½
3IMMieszko Mis	½	1	*	0
4Szymon Malinowski	0	½	1	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	R8	R9	Pts	Bu C1	Bu	SB	Perf	Δ
1	Chylewski, PatrykIM	2283	POL	+31N	+24B	+5N	+7B	=2N	+6B	−3N	=4B	+10N	7.0	48.0	52.0	38.75	2293	+3.4
2	Chomczyk, MarekFM	2288	POL	+41B	+16N	+15B	=3N	=1B	+4N	=5B	+6B	=7N	7.0	48.0	51.5	38.75	2272	+2.2
3	Mis, MieszkoIM	2395	POL	+39N	+13B	+10N	=2B	−6N	+9B	+1B	+5N	−4N	6.5	49.5	53.5	37.50	2255	-10.5
4	Malinowski, Szymon	2021	POL	+50N	=8B	=27N	+9B	+43N	−2B	+11N	=1N	+3B	6.5	46.0	48.0	32.25	2136	+26.8
5	Siennicki, Ludwik	2028	POL	+28B	+11N	−1B	+33N	+14B	=15N	=2N	−3B	+17N	6.0	46.0	50.0	30.50	2121	+41.8
6	Fritz, Antoni	2042	POL	=22N	+35B	+21B	+12N	+3B	−1N	+15B	−2N	=13N	6.0	45.5	49.5	30.50	2122	+20.0
7	Haliniak, Wojciech	1962	POL	+34B	=47N	+40B	−1N	=11B	+24N	=12B	+21N	=2B	6.0	41.5	44.0	26.75	2025	+14.4
8	Grabowski, Wojciech	1796	POL	+25B	=4N	−12B	−23N	+48B	+32B	=9N	+22N	+15B	6.0	40.5	43.0	26.75	1910	+28.2
9	Sternik, Piotr	1873	POL	+46B	=40N	+42B	−4N	+31B	−3N	=8B	+16N	+18B	6.0	40.0	43.0	25.25	1938	+14.0
10	Trzebinski, PatrykCM	2153	POL	+38B	+33N	−3B	=11N	+17N	=13B	=21B	+12N	−1B	5.5	43.5	47.5	26.25	2026	-21.4
11	Mongird, Lew	1774	POL	+32N	−5B	+36N	=10B	=7N	+43B	−4B	=14N	+21B	5.5	42.0	45.5	24.50	1980	+94.4
12	Kopacki, Aleksander	1868	POL	+37N	=27B	+8N	−6B	=22N	+25B	=7N	−10B	+26B	5.5	41.5	45.5	26.50	1890	+13.2
13	Orlik, Sandra	1869	POL	+45B	−3N	=41B	+40N	=23B	=10N	+28B	=15N	=6B	5.5	39.0	42.5	23.75	1981	+25.4
14	Kucewicz, Piotr	1941	POL	=42B	+44N	=47B	+25N	−5N	=17B	=18N	=11B	+29N	5.5	37.5	40.0	23.25	1811	-49.6
15	Siennicki, Gustaw	1963	POL	+18N	+17B	−2N	+27B	+32N	=5B	−6N	=13B	−8N	5.0	45.0	49.0	24.25	1920	-9.0
16	Stefaniuk, Zbigniew	1853	POL	+29N	−2B	−22N	+35B	=18N	+39B	+26N	−9B	=20N	5.0	40.5	44.5	22.00	1838	-5.0
17	Branecki, Maciej	1818	POL	+48B	−15N	+44B	+21N	−10B	=14N	=23B	+25N	−5B	5.0	39.0	41.5	20.00	1900	+32.8
18	Wieteska, Stanislaw	1684	POL	−15B	+48N	−33B	+44N	=16B	+41N	=14B	+23N	−9N	5.0	37.0	39.5	19.25	1850	+75.6
19	Mazan, Dawid	1788	POL	+30B	−21N	−25B	+37N	=41B	−28N	=40B	+38N	+34B	5.0	33.5	37.0	20.00	1762	-6.8
20	Jurkiewicz, Krzysztof	2020	POL	−40B	−42N	−26B	+51N	=46B	+34N	+41B	+31N	=16B	5.0	31.0	33.0	17.50	1734	-56.2
21	Ladon, Tymoteusz	1944	POL	+36N	+19B	−6N	−17B	+27N	+22B	=10N	−7B	−11N	4.5	42.0	46.0	20.75	1857	-38.8
22	Gregorczyk, Michal	1709	POL	=6B	=23N	+16B	=41N	=12B	−21N	+43N	−8B	=24N	4.5	39.5	43.0	20.50	1871	+74.0
23	Rodziewicz-Bielewicz, Kuba	1914	POL	=35N	=22B	=31N	+8B	=13N	=26B	=17N	−18B	=28N	4.5	39.0	43.0	22.00	1730	-84.4
24	Czerwinski, Bartlomiej	1827	POL	+26N	−1N	+34B	−32B	+36N	−7B	=29N	=28N	=22B	4.5	39.0	43.0	19.25	1746	-20.6
25	Wrzesinska, Amelia	1596	POL	−8N	+50B	+19N	−14B	+47B	−12N	+27N	−17B	=36N	4.5	38.0	40.0	16.00	1793	+87.6
26	Pancewicz, Mateusz	1597	POL	−24B	−31B	+20N	+34N	+33B	=23N	−16B	+32B	−12N	4.5	36.5	40.5	19.25	1801	+43.8
27	Panasiuk, Piotr	1788	POL	+51B	=12N	=4B	−15N	−21B	+47N	−25B	=30N	+40B	4.5	36.5	38.5	16.25	1782	-1.6
28	Gutkowski, Konrad	1700	POL	−5N	−32B	+52N	=29B	+49N	+19B	−13N	=24B	=23B	4.5	36.5	37.5	15.25	1739	+7.6
29	Radwan, Daniel	1624	POL	−16B	−41N	+51B	=28N	+40B	=31N	=24B	+33N	−14B	4.5	34.5	36.5	16.00	1744	+28.0
30	Borkowski, Adam	1772	POL	−19N	=37B	−32N	+50B	=35N	=36B	=39N	=27B	+42N	4.5	33.0	35.0	15.75	1687	-20.4
31	Kumor, Artur	1725	POL	−1B	+26N	=23B	+42N	−9N	=29B	=32N	−20B	=35N	4.0	39.5	43.0	16.50	1737	-0.8
32	Kamieniecki, Kacper	1552	POL	−11B	+28N	+30B	+24N	−15B	−8N	=31B	−26N	=33B	4.0	38.5	42.5	17.50	1728	+38.0
33	Ladon, Jeremi	1794	POL	+52N	−10B	+18N	−5B	−26N	=35B	+36N	−29B	=32N	4.0	37.5	38.5	14.00	1681	-56.0
34	Woytitzki, Maja	1678	POL	−7N	+49B	−24N	−26B	+45N	−20B	+44N	+43B	−19N	4.0	35.5	38.0	13.00	1709	+10.3
35	Danowski, Krzysztof	1653	POL	=23B	−6N	+45B	−16N	=30B	=33N	=46B	=40N	=31B	4.0	35.0	38.0	15.25	1740	+36.8
36	Dogiel, Leszek	1662	POL	−21B	+51N	−11B	+38N	−24B	=30N	−33B	+48N	=25B	4.0	34.0	36.0	13.00	1669	+1.8
37	Krasniewski, Grzegorz	1638	POL	−12B	=30N	=39N	−19B	=38B	−40N	+50N	+47B	=43N	4.0	32.5	34.5	12.50	1718	+38.0
38	Pniewski, Wieslaw	1711	POL	−10N	+52B	−43N	−36B	=37N	=44B	+49N	−19B	+46N	4.0	31.0	32.0	10.25	1661	-27.6
39	Karczynski, Lech	1740	POL	−3B	=45N	=37B	=48N	+42B	−16N	=30B	+46N	—	4.0	30.0	32.5	13.75	1737	-3.4
40	Serafin, Jerzy	1670	POL	+20N	=9B	−7N	−13B	−29N	+37B	=19N	=35B	−27N	3.5	40.5	44.5	16.50	1722	+9.0
41	Kozlowski, Dominik	1744	POL	−2N	+29B	=13N	=22B	=19N	−18B	−20N	−42B	+49N	3.5	40.0	42.5	14.50	1697	-35.6
42	Woytitzki, Sophie	1656	POL	=14N	+20B	−9N	−31B	−39N	=49B	=47B	+41N	−30B	3.5	35.0	37.5	13.75	1707	+18.4
43	Galeziewski, Olaf	1836	POL	−44B	+46N	+38B	+47N	−4B	−11N	−22B	−34N	=37B	3.5	35.0	37.5	11.50	1648	-45.4
44	Sakiewicz, Bartosz	1606	POL	+43N	−14B	−17N	−18B	=52N	=38N	−34B	=45B	+47N	3.5	33.0	34.0	10.25	1659	+17.2
45	Narwojsz, Helena	1637	POL	−13N	=39B	−35N	=49B	−34B	−51N	+52B	=44N	+50B	3.5	27.5	28.5	8.00	1556	-41.2
46	Szuszkiewicz, Stanislaw	1639	POL	−9N	−43B	−49N	+52B	=20N	+48B	=35N	−39B	−38B	3.0	31.5	32.5	8.00	1590	-26.6
47	Narwojsz, Franciszek	1768	POL	+49N	=7B	=14N	−43B	−25N	−27B	=42N	−37N	−44B	2.5	35.0	37.5	10.00	1558	-100.0
48	Koczara, Mikolaj	1554	POL	−17N	−18B	+50N	=39B	−8N	−46N	+51B	−36B	F	2.5	31.0	32.0	6.00	1543	-7.6
49	Szczurko, Henryk	1473	POL	−47B	−34N	+46B	=45N	−28B	=42N	−38B	=50N	−41B	2.5	28.5	30.5	7.50	1528	+16.4
50	Kondratiuk, Jakub	1697	POL	−4B	−25N	−48B	−30N	=51B	+52N	−37B	=49B	−45N	2.0	30.0	31.0	3.25	1414	-131.6
51	Daniszewski, Rafal	1433	POL	−27N	−36B	−29N	−20B	=50N	+45B	−48N	=52B	—	2.0	26.0	27.0	5.00	1477	+6.2
52	Obolewicz, Piotr	1564	POL	−33B	−38N	−28B	−46N	=44B	−50B	−45N	=51N	F	1.0	27.0	29.0	2.75	1330	-41.2

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Mongird, LewPOL
+94.4
5.5 pts · #14
2Wrzesinska, AmeliaPOL
+87.6
4.5 pts · #25
3Wieteska, StanislawPOL
+75.6
5.0 pts · #18

Top rating losers

1Kondratiuk, JakubPOL
-131.6
2.0 pts · #50
2Narwojsz, FranciszekPOL
-100.0
2.5 pts · #49
3Rodziewicz-Bielewicz, KubaPOL
-84.4
4.5 pts · #30

Biggest upsets

R3+423 Elo gap
Pancewicz, Mateusz1597 beat Jurkiewicz, Krzysztof2020
R9+374 Elo gap
Malinowski, Szymon2021 beat IMMis, Mieszko2395
R2+364 Elo gap
Woytitzki, Sophie1656 beat Jurkiewicz, Krzysztof2020