Prepare against Katarzyna Kowalec
WCM · Poland · World #25,017 classical · FIDE ID 1143948
When preparing against Katarzyna Kowalec, expect 1.e4 in 98% of White games. Against 1.e4 the reply is 1...c5 (94% of games); against 1.d4, 1...Nf6 (44%). Lowest win rate among frequent openings: Sicilian: Najdorf as White, 35.3% over 17 games.
Our database contains 470 games by Katarzyna Kowalec, covering Jan 2008 to Sep 2026. Below you'll find Katarzyna Kowalec's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Katarzyna Kowalec 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 | 2,018 | 2,070 | Nov 2018 |
| Rapid | 1,951 | 1,972 | Feb 2018 |
| Blitz | 1,851 | 2,017 | Oct 2016 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 470 | 215 | 83 | 172 | 45.7% |
| As White | 243 | 115 | 42 | 86 | 47.3% |
| As Black | 227 | 100 | 41 | 86 | 44.1% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Katarzyna Kowalec's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Katarzyna Kowalec's side.
First moves as White (243 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 237 | 97.5% | 56.3% |
| d4 | 6 | 2.5% | 41.7% |
Main lines as White
- 1.e4 — 98% of White games, 56.3% score
- …c5 (43% of these games) — Kowalec usually continues Nf3 (51.0% score)
- …e5 (30% of these games) — Kowalec usually continues Nf3 (60.1% score)
- …e6 (11% of these games) — Kowalec usually continues d4 (74.1% score)
- 1.d4 — 2% of White games, 41.7% score
- …Nf6 (50% of these games) — Kowalec usually continues Nf3 (0.0% score)
- …f5 (17% of these games) — Kowalec usually continues g3 (100.0% score)
- …c5 (17% of these games) — Kowalec usually continues e3 (0.0% score)
As Black against 1.e4 (146 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 137 | 93.8% | 56.9% |
| e5 | 6 | 4.1% | 16.7% |
| d6 | 2 | 1.4% | 50.0% |
| g6 | 1 | 0.7% | 0.0% |
As Black against 1.d4 (54 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 24 | 44.4% | 50.0% |
| c5 | 15 | 27.8% | 60.0% |
| g6 | 8 | 14.8% | 31.3% |
| d5 | 5 | 9.3% | 40.0% |
| d6 | 2 | 3.7% | 50.0% |
Katarzyna Kowalec's chess games
All 470 games by Katarzyna Kowalec in the Chess.ceo database (Jan 2008 - Sep 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: 215 wins, 83 draws, 172 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B42 | Sicilian | 58 | 29/11/18 | 50.0% |
| C77 | Ruy Lopez: Morphy Defense | 25 | 17/0/8 | 68.0% |
| B90 | Sicilian: Najdorf | 17 | 6/3/8 | 35.3% |
| C11 | French: Classical Variation | 13 | 8/3/2 | 61.5% |
| C17 | French: Winawer Variation | 9 | 5/2/2 | 55.6% |
| B33 | Sicilian: Sveshnikov | 9 | 1/5/3 | 11.1% |
| B08 | Pirc Defense | 8 | 4/2/2 | 50.0% |
| B01 | Scandinavian Defense: Main Line | 7 | 1/2/4 | 14.3% |
| C47 | Four Knights Game: Scotch Variation | 7 | 4/0/3 | 57.1% |
| B34 | Sicilian: Accelerated Dragon | 6 | 1/2/3 | 16.7% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B40 | Sicilian | 55 | 24/12/19 | 43.6% |
| B90 | Sicilian: Najdorf | 44 | 23/7/14 | 52.3% |
| A43 | Benoni Defense | 16 | 9/2/5 | 56.3% |
| B22 | Sicilian: Alapin | 16 | 10/1/5 | 62.5% |
| B24 | Sicilian: Closed | 10 | 4/3/3 | 40.0% |
| A42 | Modern Defense | 8 | 2/2/4 | 25.0% |
| A36 | English Opening: Symmetrical | 6 | 2/1/3 | 33.3% |
| D80 | Grünfeld Defense | 6 | 3/2/1 | 50.0% |
| A29 | English Opening: Reverse Sicilian | 4 | 2/0/2 | 50.0% |
| B09 | Queen's Pawn Game | 4 | 1/1/2 | 25.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| May 2018 | Juraj Druska | 2,429 | Bratislava Slovan Open | B53 |
| Jul 2021 | Mateusz Paszewski | 2,280 | Warsaw Maciei Memorial | B52 |
| Jul 2019 | Michal Popiol | 2,187 | 17th Warsaw Najdorf Memorial Open A | C11 |
| Jul 2019 | Yoav Milikow | 2,186 | 17th Warsaw Najdorf Memorial Open A | A42 |
| Apr 2018 | Marcin Smolka | 2,178 | Bratislava Slovan Open | C77 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| POL-chT 2nd League | 2020 | 51 | 33 | 2,042 |
| chT-POL U19 1st League | 2015 | 36 | 18.5 | 1,776 |
| ch-POL U12 Girls | 2009 | 22 | 14.5 | 1,793 |
| ch-POL Academic w | 2022 | 19 | 13 | 2,018 |
| Titled Tuesday | 2024 | 18 | 2 | 1,833 |
| Augustow Open | 2007 | 17 | 5.5 | 1,374 |
| POL-chT 1st League | 2024 | 12 | 7 | 2,057 |
| Olsztyn Open U18 Blitz | 2013 | 12 | 6 | 1,817 |
Interactive opening tree from all 470 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Katarzyna Kowalec's chess games?
470 games by Katarzyna Kowalec, from Jan 2008 to Sep 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 Katarzyna Kowalec has played.
What does Katarzyna Kowalec play on the first move as White?
Across 243 games with White in our database, Katarzyna Kowalec opens with 1.e4 (98% of games), 1.d4 (2% of games). Against 1.e4 as Black, Katarzyna Kowalec answers 1...c5 (94% of games), 1...e5 (4% of games), 1...d6 (1% of games). Against 1.d4: 1...Nf6 (44% of games), 1...c5 (28% of games), 1...g6 (15% of games).
What openings does Katarzyna Kowalec play as White?
As White, Katarzyna Kowalec's most-played openings in our database are: Sicilian (58 games, 50.0% win rate); Ruy Lopez: Morphy Defense (25 games, 68.0% win rate); Sicilian: Najdorf (17 games, 35.3% win rate). The full breakdown of 243 games with White is in the table above.
What openings does Katarzyna Kowalec play as Black?
As Black, Katarzyna Kowalec most often plays: Sicilian (55 games, 43.6% win rate); Sicilian: Najdorf (44 games, 52.3% win rate); Benoni Defense (16 games, 56.3% win rate). See the table above for the top ten Black openings across 227 games.
What is Katarzyna Kowalec's FIDE rating?
Katarzyna Kowalec is currently rated 2,018 in classical chess, 1,951 in rapid and 1,851 in blitz. Peak classical rating: 2,070 (Nov 2018).
How many games has Katarzyna Kowalec played?
Our database contains 470 games by Katarzyna Kowalec, covering Jan 2008 to Sep 2026. Overall record: 215 wins, 83 draws, 172 losses (45.7% win rate).
How do I prepare against Katarzyna Kowalec?
470 games by Katarzyna Kowalec 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.