KONIN MASTERS 2026 OPEN A
Open SwissStandard
46 players participated in this 5-round tournament, held from 14 Mar 2026 to 15 Mar 2026 in Konin, Poland. 1 titled players from 2 federations. Top 10 Elo average was 2007, and top seed was Jan Rzewucki (🇵🇱 POL, 2109).
Szymon Zajac (🇵🇱 POL, 2033) won with 4.5/5, ahead of Kajetan Mich (4.5) and Mateusz Derejczyk (4.0). Zajac shared the lead from round 4, winning on tie-break.
The biggest upset came in round 5: Nikodem Kolakowski (1500) beat Boguslaw Czepczynski (1870), a +370-point gap.
Location
🇵🇱Konin, Poland
Dates
14 Mar 2026 → 15 Mar 2026
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 5 rounds
Titled players · 1
CM×1
Federations · 2 represented
🇵🇱Poland×44
FIDE (no federation)×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 5 roundsTight race until R5; 2 players tied at 4.5/5, decided on Buchholz. Title race narrowed from 5 co-leaders at R4 to 2 at the finish.
Co-leaders
22
11
3
5
2
R5 · TIEBREAK CLUSTER
2 players finish on 4.5/5. Zajac takes the title on Buchholz Cut1 (15.5).
R3 · HEAD-TO-HEAD · WINNER VS 2ND
Szymon Zajac drew with Kajetan Mich (Black).
R1–R3 · WIN STREAK
Mateusz Derejczyk won 3 in a row (R1–R3).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Szymon Zajac | * | ½ | 1 | — |
| 2Kajetan Mich | ½ | * | — | — |
| 3Mateusz Derejczyk | 0 | — | * | — |
| 4Jakub Kolinski | — | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Zajac, Szymon | 2033 | POL | +16N | +10B | =2N | +3B | +7N | 4.5 | 15.5 | 18.5 | 16.25 | 2273 | +24.0 |
| 2 | Mich, Kajetan | 1976 | POL | +36B | +21N | =1B | +19N | +6B | 4.5 | 13.0 | 14.5 | 12.25 | 2241 | +56.0 |
| 3 | Derejczyk, Mateusz | 1953 | POL | +37B | +22N | +4B | −1N | +15B | 4.0 | 14.0 | 15.5 | 11.00 | 2100 | +38.0 |
| 4 | Meczynski, Waldemar | 1993 | POL | +43N | +23B | −3N | +28B | +8B | 4.0 | 12.0 | 13.0 | 9.00 | 2109 | +14.4 |
| 5 | Kolinski, Jakub | 1788 | POL | =27B | =20N | +42B | +23B | +13N | 4.0 | 10.0 | 11.0 | 8.75 | 2142 | +88.0 |
| 6 | Mietkiewicz, Jacek | 1901 | POL | +24N | +11B | =27N | +12B | −2N | 3.5 | 14.0 | 16.0 | 10.50 | 2092 | +26.8 |
| 7 | Gawronski, Miroslaw | 1991 | POL | +32B | +15N | +13B | =8N | −1B | 3.5 | 14.0 | 16.0 | 9.75 | 2037 | +7.8 |
| 8 | Szeszycki, Jan | 1986 | POL | +30N | +28B | +9N | =7B | −4N | 3.5 | 13.0 | 15.0 | 9.25 | 2025 | +14.0 |
| 9 | Stankowski, Wiktor | 1909 | POL | +31B | +14N | −8B | =21N | +20B | 3.5 | 11.5 | 13.5 | 8.75 | 1939 | +10.4 |
| 10 | Kapela, Norbert | 1872 | POL | +40B | −1N | +29B | =22N | +19B | 3.5 | 11.5 | 13.0 | 7.25 | 1959 | +26.0 |
| 11 | Bilochenko, MatviiCM | 2055 | POL | +20B | −6N | =14B | +42N | +21B | 3.5 | 11.5 | 12.5 | 7.50 | 1980 | -15.6 |
| 12 | Swiatnicki, Andrzej | 2009 | POL | +29B | +42N | =19B | −6N | +22B | 3.5 | 10.5 | 11.5 | 6.75 | 1995 | -0.6 |
| 13 | Kulczewski, Zygmunt | 1917 | POL | +34N | +18B | −7N | +17B | −5B | 3.0 | 13.5 | 15.5 | 8.00 | 1872 | -4.6 |
| 14 | Puzyrewski, Feliks | 1792 | POL | +45N | −9B | =11N | +18B | =23N | 3.0 | 12.5 | 13.0 | 6.50 | 1908 | +23.6 |
| 15 | Weber, Wiktor | 1859 | POL | +39N | −7B | +43N | +27B | −3N | 3.0 | 11.0 | 12.0 | 4.50 | 1925 | +20.8 |
| 16 | Lasecki, Szymon | 1744 | POL | −1B | −27N | +39B | +31N | +28N | 3.0 | 10.5 | 12.0 | 5.50 | 1891 | +35.2 |
| 17 | Radziszewski, Leon | 1813 | POL | +38B | −19N | +31B | −13N | +30B | 3.0 | 9.5 | 11.0 | 5.50 | 1785 | -2.4 |
| 18 | Krzeszewski, Filip | 1801 | POL | +46B | −13N | +38B | −14N | +33B | 3.0 | 9.5 | 9.5 | 3.50 | 1675 | -22.8 |
| 19 | Nowak, Rafal | 1962 | POL | +25N | +17B | =12N | −2B | −10N | 2.5 | 14.5 | 17.0 | 7.25 | 1858 | -12.2 |
| 20 | Wysokowicz, Szymon | 1748 | POL | −11N | =5B | +35N | +25B | −9N | 2.5 | 13.5 | 15.5 | 6.50 | 1775 | +6.0 |
| 21 | Lachacz, Tymoteusz | 1845 | POL | +35N | −2B | +30N | =9B | −11N | 2.5 | 13.5 | 15.5 | 5.75 | 1816 | -4.4 |
| 22 | Wisniarek, Jakub | 1803 | POL | +44N | −3B | +24N | =10B | −12N | 2.5 | 13.5 | 14.5 | 5.25 | 1764 | -9.6 |
| 23 | Shakhnovich, Uladzislau | 1867 | FID | +41B | −4N | +32B | −5N | =14B | 2.5 | 13.0 | 14.5 | 5.00 | 1750 | -14.0 |
| 24 | Lieske, Milena | 1564 | POL | −6B | +46N | −22B | =29N | +36B | 2.5 | 9.5 | 9.5 | 2.50 | 1671 | +17.2 |
| 25 | Sura, Wiktor | 1617 | POL | −19B | =33N | +36B | −20N | +37B | 2.5 | 8.5 | 10.0 | 4.00 | 1695 | +16.4 |
| 26 | Matuszewska, Amelia | 1534 | POL | −42B | −29N | +46B | =37N | +43B | 2.5 | 5.5 | 5.5 | 1.75 | 1630 | +20.8 |
| 27 | Rzewucki, Jan | 2109 | POL | =5N | +16B | =6B | −15N | F | 2.0 | 13.5 | 15.5 | 6.75 | 1823 | -27.0 |
| 28 | Przerwa, Sebastian | 1849 | POL | +33B | −8N | +37B | −4N | −16B | 2.0 | 12.5 | 14.0 | 3.50 | 1698 | -19.0 |
| 29 | Stanczewski, Maciej | 1699 | POL | −12N | +26B | −10N | =24B | =34N | 2.0 | 12.0 | 14.0 | 4.75 | 1641 | -8.8 |
| 30 | Dobrzykowski, Michal | 1637 | POL | −8B | +41N | −21B | +38N | −17N | 2.0 | 10.5 | 12.0 | 3.00 | 1656 | +0.8 |
| 31 | Kazmierczak, Tymoteusz | 1582 | POL | −9N | +45B | −17N | −16B | +44N | 2.0 | 10.5 | 11.0 | 1.50 | 1021 | -24.4 |
| 32 | Kolanowski, Franciszek | 1647 | POL | −7N | +39B | −23N | +40B | F | 2.0 | 9.5 | 11.0 | 3.00 | 1735 | +14.8 |
| 33 | Matuszewski, Jakub | 1517 | POL | −28N | =25B | =34N | +43B | −18N | 2.0 | 9.5 | 10.5 | 3.25 | 1642 | +28.4 |
| 34 | Budzinski, Aleksander | 1603 | POL | −13B | −38N | =33B | +41N | =29B | 2.0 | 8.5 | 10.0 | 3.50 | 1554 | -17.2 |
| 35 | Kolakowski, Nikodem | 1500 | POL | −21B | =36N | −20B | =39N | +42B | 2.0 | 8.0 | 9.0 | 2.50 | 1652 | +32.0 |
| 36 | Michno, Lukasz | 1632 | POL | −2N | =35B | −25N | +45B | −24N | 1.5 | 11.5 | 12.0 | 1.50 | 1345 | -28.0 |
| 37 | Konieczka, Konrad | 1612 | POL | −3N | +44B | −28N | =26B | −25N | 1.5 | 11.0 | 12.0 | 2.25 | 1411 | -19.0 |
| 38 | Mazurkiewicz, Krzysztof | 1471 | POL | −17N | +34B | −18N | −30B | =40N | 1.5 | 10.0 | 11.5 | 2.75 | 1534 | +5.6 |
| 39 | Mioduszewski, Szymon | 1523 | POL | −15B | −32N | −16N | =35B | +45N | 1.5 | 10.0 | 10.5 | 1.50 | 1366 | -28.0 |
| 40 | Jaloszynski, Ryszard | 1557 | POL | −10N | −43B | +44N | −32N | =38B | 1.5 | 8.0 | 9.0 | 1.75 | 1348 | -19.2 |
| 41 | Plocha, Oskar | 1528 | POL | −23N | −30B | =45N | −34B | +46N | 1.5 | 7.0 | 7.0 | 0.25 | 904 | -34.4 |
| 42 | Czepczynski, Boguslaw | 1870 | POL | +26N | −12B | −5N | −11B | −35N | 1.0 | 13.5 | 15.5 | 2.50 | 1532 | -39.6 |
| 43 | Lukowski, Arkadiusz | 1690 | POL | −4B | +40N | −15B | −33N | −26N | 1.0 | 11.5 | 13.0 | 1.50 | 1447 | -62.8 |
| 44 | Leszczynski, Henryk | 0 | POL | −22B | −37N | −40B | +46N | −31B | 1.0 | 7.5 | 7.5 | 0.00 | 839 | 0.0 |
| 45 | Szambelan, Krystian | 0 | POL | −14B | −31N | =41B | −36N | −39B | 0.5 | 8.0 | 9.5 | 0.75 | 1245 | 0.0 |
| 46 | FIDE 91174333 | 0 | — | −18N | −24B | −26N | −44B | −41B | 0.0 | 9.5 | 10.5 | 0.00 | 801 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Kolinski, JakubPOL+88.04.0 pts · #4
- 2Mich, KajetanPOL+56.04.5 pts · #2
- 3Derejczyk, MateuszPOL+38.04.0 pts · #3
Top rating losers
- 1Lukowski, ArkadiuszPOL-62.81.0 pts · #36
- 2Czepczynski, BoguslawPOL-39.61.0 pts · #37
- 3Plocha, OskarPOL-34.41.5 pts · #46
Biggest upsets
- R5+370 Elo gap
- R4+250 Elo gap
- R4+173 Elo gap