Prepare against Jaroslaw Wielosz
Poland · World #26,713 classical · FIDE ID 1125842
When preparing against Jaroslaw Wielosz, expect 1.d4 in 74% of White games. Against 1.e4 the reply is 1...e5 (60% of games); against 1.d4, 1...Nf6 (83%). Lowest win rate among frequent openings: Indian Defense as White, 31.3% over 16 games.
Our database contains 250 games by Jaroslaw Wielosz, covering Apr 2003 to Aug 2026. Below you'll find Jaroslaw Wielosz's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Jaroslaw Wielosz before a game. You can open the same data in the free interactive preparation workstation, which builds a move-by-move opening tree from every game.
Ratings
| Time control | Current | Peak | Peak date |
|---|---|---|---|
| Classical | 2,006 | 2,074 | Jul 2003 |
| Rapid | 1,808 | 1,943 | Jul 2013 |
| Blitz | 1,907 | 1,946 | Dec 2013 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 250 | 86 | 64 | 100 | 34.4% |
| As White | 129 | 47 | 38 | 44 | 36.4% |
| As Black | 121 | 39 | 26 | 56 | 32.2% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Jaroslaw Wielosz's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Jaroslaw Wielosz's side.
First moves as White (129 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 95 | 73.6% | 53.2% |
| c4 | 21 | 16.3% | 47.6% |
| Nf3 | 10 | 7.8% | 45.0% |
| e4 | 3 | 2.3% | 33.3% |
Main lines as White
- 1.d4 — 74% of White games, 53.2% score
- …Nf6 (41% of these games) — Wielosz usually continues c4 (50.0% score)
- …d5 (35% of these games) — Wielosz usually continues c4 (63.6% score)
- …f5 (8% of these games) — Wielosz usually continues g3 (68.8% score)
- 1.c4 — 16% of White games, 47.6% score
- …Nf6 (29% of these games) — Wielosz usually continues Nc3 (41.7% score)
- …e6 (24% of these games) — Wielosz usually continues Nf3 (25.0% score)
- …e5 (19% of these games) — Wielosz usually continues Nc3 (50.0% score)
As Black against 1.e4 (70 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 42 | 60.0% | 42.9% |
| c5 | 23 | 32.9% | 37.0% |
| d6 | 5 | 7.1% | 70.0% |
As Black against 1.d4 (30 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 25 | 83.3% | 52.0% |
| f5 | 3 | 10.0% | 16.7% |
| d5 | 1 | 3.3% | 0.0% |
| d6 | 1 | 3.3% | 0.0% |
Jaroslaw Wielosz's chess games
All 250 games by Jaroslaw Wielosz in the Chess.ceo database (Apr 2003 - Aug 2026) are free to browse, search and replay: filter by opening, opponent, event or date on the player page, or step through any game on the analysis board. Record: 86 wins, 64 draws, 100 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| E62 | Indian Defense | 16 | 5/5/6 | 31.3% |
| E97 | King's Indian Defense: Orthodox Variation | 15 | 9/4/2 | 60.0% |
| D63 | Queen's Gambit Declined | 11 | 5/4/2 | 45.5% |
| D15 | Slav Defense | 11 | 7/3/1 | 63.6% |
| A90 | Dutch Defense | 9 | 5/1/3 | 55.6% |
| E09 | Catalan | 8 | 2/2/4 | 25.0% |
| A57 | Benoni Defense | 7 | 1/3/3 | 14.3% |
| B37 | Modern Defense | 6 | 2/1/3 | 33.3% |
| E18 | Queen's Indian Defense | 5 | 2/2/1 | 40.0% |
| A31 | English Opening: Symmetrical | 4 | 2/0/2 | 50.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B42 | Sicilian | 16 | 5/2/9 | 31.3% |
| E12 | Queen's Indian Defense | 9 | 2/2/5 | 22.2% |
| E38 | Nimzo-Indian: Classical Variation | 6 | 3/2/1 | 50.0% |
| C45 | Scotch Game | 6 | 3/0/3 | 50.0% |
| B24 | Sicilian: Closed | 5 | 1/1/3 | 20.0% |
| C50 | Italian Game | 5 | 1/2/2 | 20.0% |
| C67 | Ruy Lopez: Berlin Defense | 5 | 1/1/3 | 20.0% |
| A13 | English Opening | 4 | 1/1/2 | 25.0% |
| C84 | Ruy Lopez: Closed | 4 | 2/0/2 | 50.0% |
| D80 | Grünfeld Defense | 4 | 0/2/2 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jun 2006 | Jury Mouiwid | 2,239 | Lasker Memorial Open A | E38 |
| Jun 2013 | Krzysztof Zapolski | 2,232 | 22nd Wroclaw Anderssen Memorial Open | E94 |
| Jun 2013 | Janusz Zyla | 2,190 | 22nd Wroclaw Anderssen Memorial Open | E97 |
| Jun 2006 | Aleksander Kielbratowski | 2,153 | Lasker Memorial Open A | C47 |
| Aug 2008 | Mariusz Mazalon | 2,148 | 44th Polanica Zdroj Open B | E18 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Raciborz Open | 2008 | 18 | 10 | 1,820 |
| Wroclaw Anderssen Memorial Open | 2024 | 16 | 8 | 1,670 |
| 44th Polanica Zdroj Open B | 2008 | 10 | 5.5 | 1,987 |
| 47th Polanica Zdroj Open A | 2011 | 9 | 2.5 | 1,785 |
| 3rd Gora Sw Anny Open | 2010 | 9 | 5 | 1,968 |
| Wroclaw Polonia Open A | 2005 | 9 | 4 | 2,088 |
| chT-EU Seniors 50 | 2018 | 9 | 3.5 | 1,977 |
| TCh-EUR Senior +50 | 2025 | 9 | 3 | 1,966 |
Interactive opening tree from all 250 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Jaroslaw Wielosz's chess games?
250 games by Jaroslaw Wielosz, from Apr 2003 to Aug 2026, are free to browse and replay move by move — no signup needed. The preparation view groups them into an opening tree showing every line Jaroslaw Wielosz has played.
What does Jaroslaw Wielosz play on the first move as White?
Across 129 games with White in our database, Jaroslaw Wielosz opens with 1.d4 (74% of games), 1.c4 (16% of games), 1.Nf3 (8% of games). Against 1.e4 as Black, Jaroslaw Wielosz answers 1...e5 (60% of games), 1...c5 (33% of games), 1...d6 (7% of games). Against 1.d4: 1...Nf6 (83% of games), 1...f5 (10% of games), 1...d5 (3% of games).
What openings does Jaroslaw Wielosz play as White?
As White, Jaroslaw Wielosz's most-played openings in our database are: Indian Defense (16 games, 31.3% win rate); King's Indian Defense: Orthodox Variation (15 games, 60.0% win rate); Queen's Gambit Declined (11 games, 45.5% win rate). The full breakdown of 129 games with White is in the table above.
What openings does Jaroslaw Wielosz play as Black?
As Black, Jaroslaw Wielosz most often plays: Sicilian (16 games, 31.3% win rate); Queen's Indian Defense (9 games, 22.2% win rate); Nimzo-Indian: Classical Variation (6 games, 50.0% win rate). See the table above for the top ten Black openings across 121 games.
What is Jaroslaw Wielosz's FIDE rating?
Jaroslaw Wielosz is currently rated 2,006 in classical chess, 1,808 in rapid and 1,907 in blitz. Peak classical rating: 2,074 (Jul 2003).
How many games has Jaroslaw Wielosz played?
Our database contains 250 games by Jaroslaw Wielosz, covering Apr 2003 to Aug 2026. Overall record: 86 wins, 64 draws, 100 losses (34.4% win rate).
How do I prepare against Jaroslaw Wielosz?
250 games by Jaroslaw Wielosz reveal their opening repertoire, most-played lines, and the variations where they score worst — the raw material for targeted preparation. The interactive opening tree lets you walk every line to any depth.