Prepare against Marcin Jaroszuk
Poland · World #110,388 classical · FIDE ID 21890250
When preparing against Marcin Jaroszuk, expect 1.Nf3 in 52% of White games. Against 1.e4 the reply is 1...e5 (81% of games); against 1.d4, 1...Nf6 (51%). Lowest win rate among frequent openings: Italian Game as Black, 16.7% over 18 games.
Our database contains 323 games by Marcin Jaroszuk, covering Jan 2017 to Aug 2026. Below you'll find Marcin Jaroszuk's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Marcin Jaroszuk 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 | 1,700 | 1,764 | Aug 2024 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 323 | 119 | 93 | 111 | 36.8% |
| As White | 163 | 69 | 51 | 43 | 42.3% |
| As Black | 160 | 50 | 42 | 68 | 31.3% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Marcin Jaroszuk's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Marcin Jaroszuk's side.
First moves as White (163 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf3 | 85 | 52.1% | 60.6% |
| d4 | 41 | 25.2% | 46.3% |
| f4 | 36 | 22.1% | 66.7% |
| e4 | 1 | 0.6% | 0.0% |
Main lines as White
- 1.Nf3 — 52% of White games, 60.6% score
- …Nf6 (46% of these games) — Jaroszuk usually continues g3 (69.1% score)
- …d5 (27% of these games) — Jaroszuk usually continues g3 (60.9% score)
- …g6 (9% of these games) — Jaroszuk usually continues g3 (56.3% score)
- 1.d4 — 25% of White games, 46.3% score
- …Nf6 (56% of these games) — Jaroszuk usually continues Nf3 (50.0% score)
- …d5 (32% of these games) — Jaroszuk usually continues Nf3 (37.5% score)
- …d6 (12% of these games) — Jaroszuk usually continues Nf3 (33.3% score)
As Black against 1.e4 (84 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 68 | 81.0% | 49.3% |
| e6 | 12 | 14.3% | 41.7% |
| b6 | 4 | 4.8% | 37.5% |
As Black against 1.d4 (45 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 23 | 51.1% | 54.3% |
| e6 | 19 | 42.2% | 31.6% |
| d5 | 1 | 2.2% | 50.0% |
Marcin Jaroszuk's chess games
All 323 games by Marcin Jaroszuk in the Chess.ceo database (Jan 2017 - 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: 119 wins, 93 draws, 111 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D02 | Réti Opening | 46 | 21/13/12 | 45.7% |
| A03 | Bird's opening | 36 | 22/4/10 | 61.1% |
| E65 | Indian Defense | 15 | 5/6/4 | 33.3% |
| E69 | King's Indian Defense: Fianchetto Variation | 11 | 2/7/2 | 18.2% |
| E68 | Réti Opening: Symmetrical Defense | 8 | 3/5/0 | 37.5% |
| A04 | Modern Defense | 7 | 3/1/3 | 42.9% |
| A04 | Dutch Defense | 6 | 4/1/1 | 66.7% |
| D02 | Queen's Pawn Game | 6 | 0/4/2 | 0.0% |
| D45 | Slav Defense | 6 | 2/3/1 | 33.3% |
| A39 | English Opening | 5 | 3/1/1 | 60.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A84 | Horwitz Defense | 19 | 5/2/12 | 26.3% |
| C55 | Italian Game | 18 | 3/8/7 | 16.7% |
| C72 | Ruy Lopez: Steinitz Defense Deferred | 12 | 7/1/4 | 58.3% |
| C45 | Scotch Game | 10 | 5/1/4 | 50.0% |
| D35 | Indian Defense | 9 | 3/4/2 | 33.3% |
| A85 | Dutch Defense | 7 | 3/0/4 | 42.9% |
| C63 | Ruy Lopez: Schliemann | 6 | 2/2/2 | 33.3% |
| C02 | French: Advance Variation | 5 | 1/0/4 | 20.0% |
| A45 | London System | 4 | 2/2/0 | 50.0% |
| B00 | Owen Defense | 4 | 1/1/2 | 25.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Aug 2025 | Maciej Koniarski | 1,990 | 305th YMCA Summer B | A07 |
| Oct 2025 | Sebastian Basiaga | 1,881 | 307th YMCA Autumn B | D47 |
| Nov 2018 | Wojciech Radecki | 1,798 | chB-Warsaw 67th | C77 |
| Apr 2024 | Mariusz Kuc | 1,748 | 288th YMCA Spring C 2024 | B07 |
| Sep 2024 | Krzysztof Sypula | 1,713 | 293rd YMCA Autumn B | D43 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| 193rd Warsaw YMCA Autumn D | 2017 | 13 | 8 | 1,315 |
| 201st Warsaw YMCA Spring D | 2018 | 13 | 7.5 | 1,331 |
| 211st Warsaw YMCA Winter C | 2019 | 13 | 6 | 1,414 |
| 265th Warsaw YMCA Autumn B | 2022 | 12 | 4 | 1,401 |
| Warsaw Najdorf Memorial Open B | 2022 | 12 | 6 | 1,508 |
| 222nd Warsaw YMCA Autumn-C | 2019 | 12 | 6 | 1,462 |
| Warsaw YMCA Spring-C 215th | 2019 | 11 | 8 | 1,611 |
| 237th Warsaw YMCA Autumn B | 2020 | 11 | 2.5 | 1,393 |
Frequent opponents
Head-to-head records: Hanna Bartczak (14 games)
Interactive opening tree from all 323 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Marcin Jaroszuk's chess games?
323 games by Marcin Jaroszuk, from Jan 2017 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 Marcin Jaroszuk has played.
What does Marcin Jaroszuk play on the first move as White?
Across 163 games with White in our database, Marcin Jaroszuk opens with 1.Nf3 (52% of games), 1.d4 (25% of games), 1.f4 (22% of games). Against 1.e4 as Black, Marcin Jaroszuk answers 1...e5 (81% of games), 1...e6 (14% of games), 1...b6 (5% of games). Against 1.d4: 1...Nf6 (51% of games), 1...e6 (42% of games), 1...d5 (2% of games).
What openings does Marcin Jaroszuk play as White?
As White, Marcin Jaroszuk's most-played openings in our database are: Réti Opening (46 games, 45.7% win rate); Bird's opening (36 games, 61.1% win rate); Indian Defense (15 games, 33.3% win rate). The full breakdown of 163 games with White is in the table above.
What openings does Marcin Jaroszuk play as Black?
As Black, Marcin Jaroszuk most often plays: Horwitz Defense (19 games, 26.3% win rate); Italian Game (18 games, 16.7% win rate); Ruy Lopez: Steinitz Defense Deferred (12 games, 58.3% win rate). See the table above for the top ten Black openings across 160 games.
What is Marcin Jaroszuk's FIDE rating?
Marcin Jaroszuk is currently rated 1,700 in classical chess. Peak classical rating: 1,764 (Aug 2024).
How many games has Marcin Jaroszuk played?
Our database contains 323 games by Marcin Jaroszuk, covering Jan 2017 to Aug 2026. Overall record: 119 wins, 93 draws, 111 losses (36.8% win rate).
How do I prepare against Marcin Jaroszuk?
323 games by Marcin Jaroszuk 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.