Poznanski Letni Festiwal Szachowy - Memorial Mistrza Miedzynarodowego Zbigniewa Dody
Open SwissStandard
64 players participated in this 9-round tournament, held from 10 Jul 2025 to 18 Jul 2025 in Poznan, Poland. 10 titled players from 3 federations. Top 10 Elo average was 2195, and top seed was Marcin Sieciechowicz (🇵🇱 POL, IM, 2402).
Jan Wojdak (🇵🇱 POL, 2198) won with 7.5/9, ahead of Marcin Sieciechowicz (7.0) and Krzysztof Chojnacki (6.5). Wojdak shared the lead from round 8 and broke clear in the final round.
The biggest upset came in round 2: Hubert Niemier (1898) beat Mikolaj Nowak (2316), a +418-point gap.
Location
🇵🇱Poznan, Poland
Dates
10 Jul 2025 → 18 Jul 2025
Time control
Standard: 90min/40moves+30min/end+30sec increment per move starting from move 1
System
Swiss · 9 rounds
Titled players · 10
IM×3
FM×1
CM×2
WFM×1
WCM×3
Federations · 3 represented
🇵🇱Poland×62
FIDE (no federation)×1
🇺🇦Ukraine×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 9 roundsJan Wojdak led from R9; +0.5-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R9.
Co-leaders
24
10
5
2
3
1
1
2
1
R9 · LEADER CHANGE18 Jul
Jan Wojdak takes the sole lead (7.5/9).
R4 · HEAD-TO-HEAD · WINNER VS 2ND
Jan Wojdak drew with IM Marcin Sieciechowicz (Black).
WIN STREAKS · 3 top finishers
Jan Wojdak 3+3 wins (R1–R3, R7–R9)IM Marcin Sieciechowicz 3 wins (R1–R3)IM Krzysztof Chojnacki 4 wins (R1–R4)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Jan Wojdak | * | ½ | ½ | — |
| 2IMMarcin Sieciechowicz | ½ | * | ½ | ½ |
| 3IMKrzysztof Chojnacki | ½ | ½ | * | ½ |
| 4Mikolaj Nowak | — | ½ | ½ | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Wojdak, Jan | 2198 | POL | +24B | +36N | +6B | =2N | =52B | =3N | +8B | +43N | +5B | 7.5 | 44.0 | 47.5 | 39.00 | 2357 | +35.8 |
| 2 | Sieciechowicz, MarcinIM | 2402 | POL | +21N | +11B | +7N | =1B | +38N | +12B | =3N | =5B | =4B | 7.0 | 49.0 | 53.0 | 39.75 | 2351 | -3.0 |
| 3 | Chojnacki, KrzysztofIM | 2285 | POL | +54N | +18B | +17N | +5B | =12N | =1B | =2B | =4N | =8B | 6.5 | 48.5 | 51.5 | 35.25 | 2262 | +0.9 |
| 4 | Nowak, Mikolaj | 2316 | POL | +64B | −16N | +24B | +14B | =5N | +20B | +12N | =3B | =2N | 6.5 | 45.5 | 46.0 | 30.75 | 2229 | -10.0 |
| 5 | Skrzypinski, Jan | 2144 | POL | +26B | +19N | +9B | −3N | =4B | +34N | +6B | =2N | −1N | 6.0 | 49.0 | 53.0 | 32.25 | 2178 | +25.5 |
| 6 | Stachowiak, Bruno | 2037 | POL | +49N | +29B | −1N | +17B | =13N | +18B | −5N | +14B | =7N | 6.0 | 45.0 | 48.5 | 29.25 | 2099 | +32.8 |
| 7 | Michalski, Karol | 2006 | POL | +23B | +27N | −2B | =32N | +19B | =9N | +22B | =10N | =6B | 6.0 | 44.5 | 48.5 | 30.50 | 2036 | +6.2 |
| 8 | Jedras, Piotr | 2082 | POL | +37N | −17B | +29N | =10B | +45N | +14B | −1N | +20B | =3N | 6.0 | 44.0 | 47.5 | 28.75 | 2054 | -2.6 |
| 9 | Skrzypczak, Jan | 1902 | POL | +33N | +40B | −5N | =45B | +25N | =7B | =10N | +12B | =15N | 6.0 | 41.5 | 45.0 | 28.50 | 2004 | +48.8 |
| 10 | Nowicki, Bartosz | 1806 | POL | =53B | =55N | +42B | =8N | +15B | +52N | =9B | =7B | =11N | 6.0 | 40.0 | 42.5 | 27.75 | 1970 | +39.6 |
| 11 | Bednarska-Bzdega, MalgorzataWFM | 1901 | POL | +34B | −2N | F | +39B | =41N | +24N | +35B | +19N | =10B | 6.0 | 38.5 | 38.5 | 26.50 | 1999 | +18.6 |
| 12 | Przybylski, BartoszFM | 2062 | POL | +28B | +32N | +16B | +15N | =3B | −2N | −4B | −9N | +27B | 5.5 | 46.0 | 50.0 | 27.25 | 2088 | +10.8 |
| 13 | Stempin, PawelIM | 2180 | POL | =25N | +47B | =20N | =18B | =6B | =22N | =19B | =26N | +31B | 5.5 | 39.5 | 43.0 | 25.50 | 1947 | -21.9 |
| 14 | Nawrocki, Michal | 1987 | POL | =35B | +39N | +56B | −4N | +32B | −8N | +27B | −6N | +26B | 5.5 | 39.5 | 42.0 | 21.50 | 1945 | -13.2 |
| 15 | Rychlik, Michal | 1938 | POL | =46N | +62B | +25N | −12B | −10N | =41B | +18N | +17B | =9B | 5.5 | 39.5 | 41.5 | 23.25 | 1896 | -8.2 |
| 16 | Niemier, Hubert | 1898 | POL | +30N | +4B | −12N | −38B | −37N | +39B | =21N | +33N | +32B | 5.5 | 37.5 | 41.5 | 25.50 | 1947 | +11.0 |
| 17 | Papouschek, Antoni | 1846 | POL | +59B | +8N | −3B | −6N | +26B | +38B | −43N | −15N | +33B | 5.0 | 40.5 | 43.0 | 21.00 | 1992 | +31.2 |
| 18 | Szelag, ZuzannaWCM | 1890 | POL | +44B | −3N | +55B | =13N | +27B | −6N | −15B | +24N | =38N | 5.0 | 40.5 | 43.0 | 20.25 | 1974 | +18.0 |
| 19 | Garwacki, Kornel | 1846 | POL | +63N | −5B | +41N | =43B | −7N | +25B | =13N | −11B | +35N | 5.0 | 40.0 | 41.0 | 18.25 | 1939 | +38.0 |
| 20 | Bernat, MarcinCM | 1935 | POL | +57B | =45N | =13B | =27N | +35B | −4N | +34B | −8N | =23B | 5.0 | 39.0 | 41.5 | 19.75 | 1918 | -4.6 |
| 21 | Shakhnovich, Uladzislau | 1778 | FID | −2B | +44N | +36B | −52N | =23B | =33N | =16B | =22N | +34B | 5.0 | 38.5 | 42.0 | 21.75 | 1873 | +19.8 |
| 22 | Andrzejewska, AnnaWCM | 1882 | POL | −56N | +33B | =40N | +46B | =43N | =13B | −7N | =21B | +37N | 5.0 | 36.0 | 38.5 | 20.75 | 1879 | -1.4 |
| 23 | Siwek, Leon | 1697 | POL | −7N | +60B | −43N | +58B | =21N | =45B | +40N | =38B | =20N | 5.0 | 34.0 | 36.0 | 17.25 | 1882 | +70.8 |
| 24 | Wolnowski, Jakub | 1750 | POL | −1N | +63B | −4N | +30B | =61N | −11B | +54N | −18B | +49N | 4.5 | 38.0 | 39.0 | 13.00 | 1808 | +10.2 |
| 25 | Gluszynski, Michal | 1741 | POL | =13B | +53N | −15B | +56N | −9B | −19N | +44B | −31N | +46B | 4.5 | 37.0 | 39.5 | 15.75 | 1797 | +11.2 |
| 26 | Deptula, Dawid | 1730 | POL | −5N | +59B | −38N | +47B | −17N | +51B | +48N | =13B | −14N | 4.5 | 36.5 | 39.0 | 15.75 | 1874 | +27.2 |
| 27 | Lukaszewicz, Piotr | 1798 | POL | +60N | −7B | +47N | =20B | −18N | +61B | −14N | +46B | −12N | 4.5 | 36.0 | 38.0 | 13.50 | 1803 | +1.6 |
| 28 | Kolendo, Kajetan | 1719 | POL | −12N | =51B | =30N | =60B | −46N | +47B | =39N | =36B | +45N | 4.5 | 32.0 | 34.0 | 16.00 | 1719 | -3.6 |
| 29 | Kostka, Eryk | 1795 | POL | +61B | −6N | −8B | −33N | +60N | +56B | =46N | =41B | =36N | 4.5 | 32.0 | 34.0 | 12.25 | 1747 | -23.2 |
| 30 | Nowak, Jakub | 1633 | POL | −16B | =64N | =28B | −24N | −50B | +57N | =53B | +56N | +54N | 4.5 | 29.0 | 29.5 | 12.00 | 1760 | +55.6 |
| 31 | Glatty, Zbigniew | 1869 | POL | −47N | =34B | F | F | +58N | +60B | +61N | +25B | −13N | 4.5 | 26.0 | 26.0 | 13.00 | 1778 | -11.8 |
| 32 | Szymanski, Zbigniew | 1814 | POL | +51N | −12B | +37N | =7B | −14N | =46B | =41N | =35B | −16N | 4.0 | 38.0 | 41.5 | 16.25 | 1774 | -9.6 |
| 33 | Broszkiewicz, Stanislaw | 1643 | POL | −9B | −22N | +59N | +29B | =48N | =21B | +45N | −16B | −17N | 4.0 | 38.0 | 40.5 | 14.75 | 1771 | +58.0 |
| 34 | Kaczmarek, Jan | 1639 | POL | −11N | =31N | +64B | +48B | +36N | −5B | −20N | =45B | −21N | 4.0 | 37.5 | 38.0 | 12.00 | 1826 | +40.6 |
| 35 | Nowak, Mateusz | 1695 | POL | =14N | −48B | +51N | +40B | −20N | +49B | −11N | =32N | −19B | 4.0 | 36.5 | 40.0 | 15.75 | 1782 | +19.6 |
| 36 | Michalska, LenaWCM | 1880 | POL | +42B | −1B | −21N | +57N | −34B | −44N | +55B | =28N | =29B | 4.0 | 36.0 | 38.5 | 13.50 | 1695 | -85.6 |
| 37 | Pieniezny, Mikolaj | 1721 | POL | −8B | +61N | −32B | +50N | +16B | −43B | −38N | +42N | −22B | 4.0 | 36.0 | 38.0 | 15.00 | 1794 | +16.4 |
| 38 | Chaczynski, Kamil | 2164 | POL | F | F | +26B | +16N | −2B | −17N | +37B | =23N | =18B | 4.0 | 36.0 | 36.0 | 19.00 | 1954 | -29.6 |
| 39 | Stefanski, Olgierd | 1690 | POL | F | −14B | =58N | −11N | +42B | −16N | =28B | +50N | +48B | 4.0 | 35.0 | 35.0 | 14.50 | 1733 | +12.4 |
| 40 | Slavov, Wiktor | 1782 | POL | +50B | −9N | =22B | −35N | =55B | +53N | −23B | −44N | +62B | 4.0 | 33.0 | 35.0 | 12.25 | 1622 | -35.4 |
| 41 | Bajer, Sebastian | 1724 | POL | F | F | −19B | +42N | =11B | =15N | =32B | =29N | +44B | 4.0 | 33.0 | 33.0 | 18.00 | 1842 | +22.4 |
| 42 | Witczak, Mikolaj | 1620 | POL | −36N | +54B | −10N | −41B | −39N | +59B | +51N | −37B | +53N | 4.0 | 31.5 | 34.0 | 12.00 | 1658 | +7.6 |
| 43 | Reshetniak, Vitaliy | 2118 | UKR | F | F | +23B | =19N | =22B | +37N | +17B | −1B | — | 4.0 | 31.5 | 31.5 | 19.00 | 1994 | -13.6 |
| 44 | Borkowski, Pawel | 1630 | POL | −18N | −21B | −60N | +63B | +59N | +36B | −25N | +40B | −41N | 4.0 | 31.0 | 32.0 | 11.50 | 1677 | +21.2 |
| 45 | Kilarski, Kacper | 1787 | POL | +58N | =20B | =52B | =9N | −8B | =23N | −33B | =34N | −28B | 3.5 | 38.0 | 40.5 | 14.25 | 1713 | -37.2 |
| 46 | Zadon, Jakub | 1676 | POL | =15B | −52N | +53B | −22N | +28B | =32N | =29B | −27N | −25N | 3.5 | 36.0 | 39.0 | 14.50 | 1725 | +18.8 |
| 47 | Kordus, Tomasz | 1618 | POL | +31B | −13N | −27B | −26N | =57B | −28N | =62B | =55N | +58B | 3.5 | 31.0 | 33.0 | 10.50 | 1652 | +10.0 |
| 48 | Rozumek, Krzysztof | 1855 | POL | =55B | +35N | F | −34N | =33B | +50N | −26B | =49B | −39N | 3.5 | 30.0 | 30.0 | 12.50 | 1572 | -52.8 |
| 49 | Samarzewski, Adam | 1719 | POL | −6B | =50N | =57B | =55N | =53B | −35N | +63B | =48N | −24B | 3.5 | 29.5 | 30.5 | 8.50 | 1626 | -44.8 |
| 50 | Ceglowski, Borys | 0 | POL | −40N | =49B | =54N | −37B | +30N | −48B | =56N | −39B | +63B | 3.5 | 29.0 | 30.0 | 10.00 | 1625 | 0.0 |
| 51 | Sura, Wiktor | 1583 | POL | −32B | =28N | −35B | +64N | =56B | −26N | −42B | =57N | +55B | 3.5 | 28.5 | 29.0 | 7.75 | 1613 | +12.0 |
| 52 | Bilochenko, MatviiCM | 2005 | POL | =62N | +46B | =45N | +21B | =1N | −10B | — | — | — | 3.5 | 25.5 | 27.5 | 15.00 | 1881 | -32.8 |
| 53 | Pieczeniak, Jakub | 1550 | POL | =10N | −25B | −46N | +62B | =49N | −40B | =30N | =54B | −42B | 3.0 | 33.0 | 35.0 | 10.50 | 1591 | +17.2 |
| 54 | Gan, Jakub | 1762 | POL | −3B | −42N | =50B | F | +62N | +55N | −24B | =53N | −30B | 3.0 | 30.5 | 30.5 | 7.75 | 1615 | -63.2 |
| 55 | Hoffmann, Piotr | 1601 | POL | =48N | =10B | −18N | =49B | =40N | −54B | −36N | =47B | −51N | 2.5 | 33.0 | 36.0 | 10.25 | 1601 | -2.6 |
| 56 | Cholewa, Jan | 1623 | POL | +22B | F | −14N | −25B | =51N | −29N | =50B | −30B | =61N | 2.5 | 33.0 | 33.0 | 9.50 | 1575 | -11.6 |
| 57 | Kordusiak, Jan | 1661 | POL | −20N | =58B | =49N | −36B | =47N | −30B | =60N | =51B | −59N | 2.5 | 29.0 | 31.0 | 7.50 | 1500 | -80.4 |
| 58 | Nazim, Tomasz | 1498 | POL | −45B | =57N | =39B | −23N | −31B | −63N | =59N | +60B | −47N | 2.5 | 27.5 | 28.5 | 6.50 | 1503 | -4.0 |
| 59 | Huchwajda, Grzegorz | 1584 | POL | −17N | −26N | −33B | F | −44B | −42N | =58B | +63N | +57B | 2.5 | 27.5 | 27.5 | 4.75 | 1508 | -16.6 |
| 60 | Siwek, Olaf | 1544 | POL | −27B | −23N | +44B | =28N | −29B | −31N | =57B | −58N | F | 2.0 | 32.0 | 32.0 | 7.50 | 1517 | -13.6 |
| 61 | Jasinski, Bartlomiej | 1511 | POL | −29N | −37B | +63N | F | =24B | −27N | −31B | −62N | =56B | 2.0 | 31.0 | 32.0 | 4.50 | 1533 | +4.0 |
| 62 | Rothe, Oskar | 1697 | POL | =52B | −15N | F | −53N | −54B | F | =47N | +61B | −40N | 2.0 | 24.5 | 24.5 | 5.50 | 1581 | -46.8 |
| 63 | Pawlak, Mateusz | 1591 | POL | −19B | −24N | −61B | −44N | F | +58B | −49N | −59B | −50N | 1.0 | 27.5 | 27.5 | 2.50 | 1339 | -67.6 |
| 64 | Mackowiak, Martin | 1771 | POL | −4N | =30B | −34N | −51B | — | — | — | — | — | 0.5 | 15.0 | 18.5 | 2.25 | 1435 | -33.8 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Siwek, LeonPOL+70.85.0 pts · #23
- 2Broszkiewicz, StanislawPOL+58.04.0 pts · #34
- 3Nowak, JakubPOL+55.64.5 pts · #29
Top rating losers
- 1Michalska, LenaWCMPOL-85.64.0 pts · #40
- 2Kordusiak, JanPOL-80.42.5 pts · #57
- 3Pawlak, MateuszPOL-67.61.0 pts · #63
Biggest upsets
- R2+418 Elo gap
- R6+318 Elo gap
- R1+259 Elo gap