Mistrzostwa Wielkopolski Juniorow w szachach klasycznych 2025 [GRUPA C13] chlopcy ur. 2012-2013
Open SwissStandard
42 players participated in this 9-round tournament, held from 11 Jun 2025 to 15 Jun 2025 in Sypniewo k. Jastrowia, Poland. Top 10 Elo average was 1700, and top seed was Jan Szeszycki (🇵🇱 POL, 1892).
Michal Sewohl (🇵🇱 POL, 1683) won with 7.5/9, ahead of Kacper Kilarski (6.5) and Stanislaw Wilusz (6.5). Sewohl took the lead from round 8.
The biggest upset came in round 2: Stanislaw Jachnik (1531) beat Stanislaw Wilusz (1839), a +308-point gap.
Location
🇵🇱Sypniewo k. Jastrowia, Poland
Dates
11 Jun 2025 → 15 Jun 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 9 rounds
Federations · 1 represented
🇵🇱Poland×36
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 9 roundsMichal Sewohl led from R8; +1.0-point edge over the runner-up. Title race converged from 5 co-leaders at R4 to 1 by R8.
Co-leaders
19
10
4
5
2
1
1
1
1
R8 · LEADER CHANGE14 Jun
Michal Sewohl takes the sole lead (6.5/8).
R8 · HEAD-TO-HEAD · WINNER VS 2ND
Michal Sewohl beat Kacper Kilarski (White).
WIN STREAKS · 2 top finishers
Michal Sewohl 3+3 wins (R1–R3, R7–R9)Kacper Kilarski 3 wins (R1–R3)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Michal Sewohl | * | 1 | — | ½ |
| 2Kacper Kilarski | 0 | * | 1 | ½ |
| 3Jan Szeszycki | — | 0 | * | ½ |
| 4Stanislaw Wilusz | ½ | ½ | ½ | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Sewohl, Michal | 1683 | POL | +24N | +26B | +23N | =21B | =10N | =3B | +11N | +2B | +7N | 7.5 | 43.5 | 47.5 | 39.25 | 1876 | +66.8 |
| 2 | Kilarski, Kacper | 1761 | POL | +18N | +11B | +12N | =5B | +21N | +4N | =7B | −1N | =3B | 6.5 | 48.5 | 53.0 | 36.25 | 1799 | +12.0 |
| 3 | Wilusz, Stanislaw | 1839 | POL | +14B | −21N | +18B | +6B | +12N | =1N | =4B | +13N | =2N | 6.5 | 48.0 | 52.5 | 37.75 | 1764 | -20.8 |
| 4 | Szeszycki, Jan | 1892 | POL | +17N | +9B | =6N | +22B | +5N | −2B | =3N | =7N | +12B | 6.5 | 47.5 | 52.0 | 36.25 | 1794 | -32.0 |
| 5 | Uryga, Marcin | 1604 | POL | +29B | +20N | +8B | =2N | −4B | −7N | +27B | +17B | =6N | 6.0 | 45.0 | 49.0 | 30.25 | 1650 | +16.8 |
| 6 | Wysokowicz, Szymon | 1596 | POL | +35N | +32B | =4B | −3N | +15B | =10N | =8B | +14N | =5B | 6.0 | 45.0 | 48.0 | 29.50 | 1688 | +32.8 |
| 7 | Maciejewski, Iwo | 1607 | POL | +16N | −23B | +24N | +32B | +26N | +5B | =2N | =4B | −1B | 6.0 | 44.5 | 48.0 | 29.50 | 1771 | +51.6 |
| 8 | Kotok, Danylo | 1417 | POL | +42N | +13B | −5N | −12B | +35N | +26B | =6N | +22B | =10B | 6.0 | 40.0 | 41.0 | 23.75 | 1660 | +88.4 |
| 9 | Sura, Wiktor | 1563 | POL | +28B | −4N | −19B | +33N | −16B | +25N | +30B | +18B | +22N | 6.0 | 38.5 | 42.0 | 25.50 | 1784 | +21.6 |
| 10 | Kwiatek, Franciszek | 1759 | POL | +19B | +15N | −21B | +23N | =1B | =6B | =12N | =11B | =8N | 5.5 | 45.5 | 50.0 | 30.25 | 1551 | -71.6 |
| 11 | Jordeczka, Leon | 1529 | POL | +33B | −2N | =16B | +27N | +17B | +20N | −1B | =10N | =13B | 5.5 | 44.0 | 47.5 | 25.50 | 1619 | +24.0 |
| 12 | Kolanowski, Franciszek | 1570 | POL | +34N | +36B | −2B | +8N | −3B | +16N | =10B | +19B | −4N | 5.5 | 44.0 | 47.0 | 24.75 | 1586 | -0.4 |
| 13 | Siwek, Olaf | 1587 | POL | +31B | −8N | +14B | −20N | +19B | +18N | +22N | −3B | =11N | 5.5 | 43.0 | 46.5 | 26.25 | 1436 | -40.4 |
| 14 | Kotok, Denys | 0 | POL | −3N | +40B | −13N | +34B | =31N | +23B | +15N | −6B | +26N | 5.5 | 38.5 | 40.0 | 20.25 | 1533 | 0.0 |
| 15 | Trojanowski, Wojciech | 1493 | POL | +39N | −10B | +35N | =17B | −6N | +29N | −14B | +31B | +21N | 5.5 | 37.0 | 39.0 | 19.50 | 1503 | -4.0 |
| 16 | Radwanski, Oliwier | 0 | POL | −7B | +25N | =11N | =37B | +9N | −12B | =26N | +30B | =17N | 5.0 | 40.5 | 43.0 | 23.00 | 1480 | 0.0 |
| 17 | Galus, Filip | 0 | POL | −4B | +34N | +42B | =15N | −11N | +31B | +21B | −5N | =16B | 5.0 | 39.5 | 40.5 | 17.25 | 1469 | 0.0 |
| 18 | Pietryk, Filip | 0 | POL | −2B | +28N | −3N | +40B | +37N | −13B | +29B | −9N | +27B | 5.0 | 39.0 | 40.5 | 16.00 | 1404 | 0.0 |
| 19 | Kordus, Franciszek | 0 | POL | −10N | +39B | +9N | −26B | −13N | +37B | +20B | −12N | +28B | 5.0 | 38.0 | 40.0 | 19.50 | 1444 | 0.0 |
| 20 | Slomianowski, Szymon | 1457 | POL | +38N | −5B | +36N | +13B | −22N | −11B | −19N | +34B | +29N | 5.0 | 36.5 | 39.0 | 18.00 | 1408 | -9.6 |
| 21 | Jachnik, Stanislaw | 1531 | POL | +40N | +3B | +10N | =1N | −2B | −22B | −17N | +23B | −15B | 4.5 | 45.5 | 47.0 | 21.75 | 1652 | +34.4 |
| 22 | Jasinski, Bartlomiej | 1676 | POL | =30B | +37N | +27B | −4N | +20B | +21N | −13B | −8N | −9B | 4.5 | 41.5 | 44.0 | 18.00 | 1507 | -60.0 |
| 23 | Wyszkowski, Adam | 1466 | POL | +?N | +7N | −1B | −10B | =24N | −14N | +38B | −21N | +32B | 4.5 | 39.5 | 39.5 | 14.25 | 1530 | 0.0 |
| 24 | Mazurek, Antoni | 0 | POL | −1B | +33N | −7B | +28N | =23B | −27N | −32B | +40N | +31B | 4.5 | 36.5 | 38.0 | 14.75 | 747 | 0.0 |
| 25 | FIDE 91115060 | 0 | — | −26N | −16B | −40N | +?B | +36N | −9B | +37N | =32N | +33B | 4.5 | 29.0 | 29.0 | 10.75 | 1222 | 0.0 |
| 26 | Trzcinski, Wojciech | 1482 | POL | +25B | −1N | +29B | +19N | −7B | −8N | =16B | =27N | −14B | 4.0 | 43.5 | 47.5 | 18.00 | 1219 | -47.6 |
| 27 | Obrebski, Leonard | 1460 | POL | =37B | +30N | −22N | −11B | +34N | +24B | −5N | =26B | −18N | 4.0 | 36.5 | 39.0 | 14.75 | 1254 | -36.0 |
| 28 | Kabatek, Dorian | 0 | POL | −9N | −18B | +?N | −24B | =30B | =33N | +36N | +35B | −19N | 4.0 | 34.0 | 34.0 | 9.75 | 762 | 0.0 |
| 29 | Rojek, Antoni | 0 | POL | −5N | +?B | −26N | +41B | +32N | −15B | −18N | +38B | −20B | 4.0 | 33.0 | 33.0 | 7.50 | 1261 | 0.0 |
| 30 | Mortek, Fabian | 0 | POL | =22N | −27B | −37N | +39B | =28N | +35B | −9N | −16N | +34B | 4.0 | 32.0 | 34.0 | 12.25 | 1293 | 0.0 |
| 31 | Gozdziewicz, Gabriel | 0 | POL | −13N | +38B | −32N | +36B | =14B | −17N | +33B | −15N | −24N | 3.5 | 36.0 | 38.5 | 11.75 | 716 | 0.0 |
| 32 | Zielinowski, Witold | 1440 | POL | +41B | −6N | +31B | −7N | −29B | −38N | +24N | =25B | −23N | 3.5 | 35.5 | 37.0 | 11.75 | 801 | -22.8 |
| 33 | Krela, Adam | 0 | POL | −11N | −24B | +38N | −9B | +41N | =28B | −31N | +?B | −25N | 3.5 | 32.0 | 32.0 | 6.00 | 751 | 0.0 |
| 34 | Jankowski, Stanislaw | 0 | POL | −12B | −17B | +39N | −14N | −27B | +41N | +42B | −20N | −30N | 3.0 | 32.5 | 33.5 | 4.50 | 696 | 0.0 |
| 35 | Sompolinski, Igor | 0 | POL | −6B | +41N | −15B | +42N | −8B | −30N | +?B | −28N | F | 3.0 | 28.0 | 28.0 | 2.50 | 712 | 0.0 |
| 36 | FIDE 545027358 | 0 | — | F | −12N | −20B | −31N | −25B | +39N | −28B | +41N | +42B | 3.0 | 27.0 | 27.0 | 4.50 | 714 | 0.0 |
| 37 | FIDE 21063486 | 0 | — | =27N | −22B | +30B | =16N | −18B | −19N | −25B | F | =38N | 2.5 | 34.5 | 34.5 | 9.75 | 1376 | 0.0 |
| 38 | Zurkowski, Adam | 0 | POL | −20B | −31N | −33B | F | +40N | +32B | −23N | −29N | =37B | 2.5 | 28.0 | 28.0 | 6.25 | 1449 | 0.0 |
| 39 | FIDE 91159784 | 0 | — | −15B | −19N | −34B | −30N | F | −36B | −41B | +42N | +?N | 2.0 | 23.0 | 23.0 | 1.00 | 724 | 0.0 |
| 40 | Kowalski, Filip | 0 | POL | −21B | −14N | +25B | −18N | −38B | −42N | F | −24B | =41B | 1.5 | 29.0 | 29.0 | 5.25 | 729 | 0.0 |
| 41 | FIDE 41856694 | 0 | — | −32N | −35B | F | −29N | −33B | −34B | +39N | −36B | =40N | 1.5 | 23.5 | 23.5 | 2.75 | 640 | 0.0 |
| 42 | FIDE 41856902 | 0 | — | −8B | F | −17N | −35B | −?N | +40B | −34N | −39B | −36N | 1.0 | 23.5 | 23.5 | 1.50 | 614 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Kotok, DanyloPOL+88.46.0 pts · #5
- 2Sewohl, MichalPOL+66.87.5 pts · #2
- 3Maciejewski, IwoPOL+51.66.0 pts · #8
Top rating losers
- 1Kwiatek, FranciszekPOL-71.65.5 pts · #9
- 2Jasinski, BartlomiejPOL-60.04.5 pts · #10
- 3Trzcinski, WojciechPOL-47.64.0 pts · #29
Biggest upsets
- R2+308 Elo gap
- R8+259 Elo gap
- R3+228 Elo gap