Prepare against Maciej Kowalec
Poland · World #14,441 classical · FIDE ID 1167600
When preparing against Maciej Kowalec, expect 1.d4 in 81% of White games. Against 1.e4 the reply is 1...e6 (71% of games); against 1.d4, 1...Nf6 (48%). Lowest win rate among frequent openings: Indian Defense as White, 23.8% over 21 games.
Our database contains 227 games by Maciej Kowalec, covering Mar 2011 to Oct 2026. Below you'll find Maciej Kowalec's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Maciej 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 | 2,112 | 2,133 | Apr 2023 |
| Rapid | 2,061 | 2,061 | Oct 2026 |
| Blitz | 2,049 | 2,062 | Aug 2018 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 227 | 71 | 86 | 70 | 31.3% |
| As White | 113 | 42 | 41 | 30 | 37.2% |
| As Black | 114 | 29 | 45 | 40 | 25.4% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Maciej Kowalec's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Maciej Kowalec's side.
First moves as White (113 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 92 | 81.4% | 54.3% |
| Nf3 | 10 | 8.8% | 70.0% |
| c4 | 6 | 5.3% | 33.3% |
| e4 | 4 | 3.5% | 62.5% |
| f4 | 1 | 0.9% | 100.0% |
Main lines as White
- 1.d4 — 81% of White games, 54.3% score
- …Nf6 (50% of these games) — Kowalec usually continues Bg5 (59.1% score)
- …d5 (33% of these games) — Kowalec usually continues Nf3 (62.5% score)
- …d6 (5% of these games) — Kowalec usually continues Nf3 (50.0% score)
- 1.Nf3 — 9% of White games, 70.0% score
- …Nf6 (50% of these games) — Kowalec usually continues d4 (100.0% score)
- …d5 (30% of these games) — Kowalec usually continues b3 (66.7% score)
- …d6 (20% of these games) — Kowalec usually continues d4 (100.0% score)
As Black against 1.e4 (65 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e6 | 46 | 70.8% | 41.3% |
| g6 | 6 | 9.2% | 41.7% |
| c5 | 5 | 7.7% | 30.0% |
| e5 | 3 | 4.6% | 16.7% |
| d5 | 3 | 4.6% | 66.7% |
| c6 | 1 | 1.5% | 50.0% |
As Black against 1.d4 (27 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 13 | 48.1% | 42.3% |
| d5 | 6 | 22.2% | 50.0% |
| c5 | 5 | 18.5% | 90.0% |
| e6 | 3 | 11.1% | 33.3% |
Maciej Kowalec's chess games
All 227 games by Maciej Kowalec in the Chess.ceo database (Mar 2011 - Oct 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: 71 wins, 86 draws, 70 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D05 | Indian Defense | 21 | 5/7/9 | 23.8% |
| A45 | Trompowsky Attack | 18 | 7/5/6 | 38.9% |
| D12 | Slav Defense | 11 | 2/7/2 | 18.2% |
| A56 | Benoni Defense | 7 | 4/3/0 | 57.1% |
| D02 | Queen's Pawn Game | 6 | 3/2/1 | 50.0% |
| D04 | Colle System | 5 | 2/3/0 | 40.0% |
| A16 | English Opening | 4 | 0/0/4 | 0.0% |
| D90 | Grünfeld Defense | 4 | 0/0/4 | 0.0% |
| D02 | London System | 3 | 2/0/1 | 66.7% |
| A06 | Nimzo-Larsen Attack | 3 | 1/2/0 | 33.3% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C07 | French: Tarrasch Variation | 14 | 4/6/4 | 28.6% |
| C15 | French: Winawer Variation | 12 | 3/7/2 | 25.0% |
| C00 | French Defense | 9 | 0/2/7 | 0.0% |
| A43 | Benoni Defense | 7 | 4/3/0 | 57.1% |
| B06 | Modern Defense | 6 | 2/1/3 | 33.3% |
| A04 | Réti Opening | 5 | 2/1/2 | 40.0% |
| C01 | French: Exchange Variation | 5 | 1/1/3 | 20.0% |
| B38 | Sicilian | 4 | 0/2/2 | 0.0% |
| A35 | English Opening: Symmetrical | 4 | 0/3/1 | 0.0% |
| C00 | King's Indian Attack | 3 | 1/1/1 | 33.3% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Mar 2021 | Viktor Matviishen | 2,512 | 1st FIDE World Uni Blitz-B | D04 |
| Sep 2019 | Andrii Punin | 2,325 | POL-chT 2nd League | C18 |
| Sep 2015 | Thomas Weissbein | 2,260 | POL-chT 2nd League | E69 |
| Mar 2023 | Dominik Marczuk | 2,253 | ch-POL Universities | A45 |
| Sep 2021 | Damian Markowski | 2,202 | POL-chT 2nd League | A04 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| POL-chT 2nd League | 2022 | 72 | 37 | 2,096 |
| chT-POL Academic | 2020 | 15 | 8 | 1,861 |
| POL-chT U19 2nd League | 2015 | 11 | 6.5 | 1,947 |
| 1st FIDE World Uni Blitz-B | 2021 | 10 | 6 | 2,104 |
| 1st Suwalki Warakomska Memorial B | 2017 | 9 | 7 | 2,191 |
| 30th Pardubice Czech Open C | 2019 | 9 | 7.5 | 2,121 |
| chT2-POL | 2013 | 9 | 4 | 1,928 |
| ch-POL Academic | 2021 | 9 | 2 | 1,971 |
Interactive opening tree from all 227 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Maciej Kowalec's chess games?
227 games by Maciej Kowalec, from Mar 2011 to Oct 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 Maciej Kowalec has played.
What does Maciej Kowalec play on the first move as White?
Across 113 games with White in our database, Maciej Kowalec opens with 1.d4 (81% of games), 1.Nf3 (9% of games), 1.c4 (5% of games). Against 1.e4 as Black, Maciej Kowalec answers 1...e6 (71% of games), 1...g6 (9% of games), 1...c5 (8% of games). Against 1.d4: 1...Nf6 (48% of games), 1...d5 (22% of games), 1...c5 (19% of games).
What openings does Maciej Kowalec play as White?
As White, Maciej Kowalec's most-played openings in our database are: Indian Defense (21 games, 23.8% win rate); Trompowsky Attack (18 games, 38.9% win rate); Slav Defense (11 games, 18.2% win rate). The full breakdown of 113 games with White is in the table above.
What openings does Maciej Kowalec play as Black?
As Black, Maciej Kowalec most often plays: French: Tarrasch Variation (14 games, 28.6% win rate); French: Winawer Variation (12 games, 25.0% win rate); French Defense (9 games, 0.0% win rate). See the table above for the top ten Black openings across 114 games.
What is Maciej Kowalec's FIDE rating?
Maciej Kowalec is currently rated 2,112 in classical chess, 2,061 in rapid and 2,049 in blitz. Peak classical rating: 2,133 (Apr 2023).
How many games has Maciej Kowalec played?
Our database contains 227 games by Maciej Kowalec, covering Mar 2011 to Oct 2026. Overall record: 71 wins, 86 draws, 70 losses (31.3% win rate).
How do I prepare against Maciej Kowalec?
227 games by Maciej 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.