Prepare against Juan Antonio Marquez Leon
Spain · World #28,504 classical · FIDE ID 22237364
Our database contains 33 games by Juan Antonio Marquez Leon, covering Sep 2010 to Jul 2026. Below you'll find Juan Antonio Marquez Leon's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Juan Antonio Marquez Leon 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 | 1,995 | 2,034 | Dec 2025 |
| Rapid | 1,899 | 1,908 | Oct 2024 |
| Blitz | 1,868 | 1,881 | Jun 2024 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 33 | 13 | 6 | 14 | 39.4% |
| As White | 16 | 7 | 2 | 7 | 43.8% |
| As Black | 17 | 6 | 4 | 7 | 35.3% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Juan Antonio Marquez Leon's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Juan Antonio Marquez Leon's side.
First moves as White (16 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 15 | 93.8% | 53.3% |
| e4 | 1 | 6.3% | 0.0% |
Main lines as White
- 1.d4 — 94% of White games, 53.3% score
- …Nf6 (67% of these games) — Leon usually continues Nf3 (55.0% score)
- …d5 (20% of these games) — Leon usually continues Nf3 (33.3% score)
- …f5 (7% of these games) — Leon usually continues Nf3 (50.0% score)
- 1.e4 — 6% of White games, 0.0% score
- …c5 (100% of these games) — Leon usually continues Nf3 (0.0% score)
As Black against 1.e4 (10 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 4 | 40.0% | 0.0% |
| c6 | 3 | 30.0% | 50.0% |
| c5 | 3 | 30.0% | 50.0% |
As Black against 1.d4 (4 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 3 | 75.0% | 100.0% |
| e6 | 1 | 25.0% | 50.0% |
Juan Antonio Marquez Leon's chess games
All 33 games by Juan Antonio Marquez Leon in the Chess.ceo database (Sep 2010 - Jul 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: 13 wins, 6 draws, 14 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A48 | London System | 4 | 1/1/2 | 25.0% |
| A46 | Indian Defense | 2 | 1/0/1 | 50.0% |
| A46 | Benoni Defense | 2 | 1/0/1 | 50.0% |
| D94 | Grünfeld Defense | 1 | 1/0/0 | 100.0% |
| A49 | King's Indian Defense: Fianchetto Variation | 1 | 0/0/1 | 0.0% |
| E21 | Nimzo-Indian Defense | 1 | 1/0/0 | 100.0% |
| E19 | Queen's Indian Defense | 1 | 1/0/0 | 100.0% |
| B22 | Sicilian | 1 | 0/0/1 | 0.0% |
| D12 | Slav Defense | 1 | 0/0/1 | 0.0% |
| D06 | Colle System | 1 | 1/0/0 | 100.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C53 | Italian Game: Classical Variation | 2 | 0/0/2 | 0.0% |
| D10 | Slav Defense | 2 | 2/0/0 | 100.0% |
| B50 | Sicilian | 2 | 1/0/1 | 50.0% |
| A16 | English Opening | 1 | 0/1/0 | 0.0% |
| D02 | Indian Defense | 1 | 0/1/0 | 0.0% |
| C50 | Italian Game | 1 | 0/0/1 | 0.0% |
| D02 | London System | 1 | 1/0/0 | 100.0% |
| A06 | Nimzo-Larsen Attack | 1 | 0/0/1 | 0.0% |
| D04 | Réti Opening | 1 | 1/0/0 | 100.0% |
| B23 | Sicilian: Closed | 1 | 0/1/0 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Mar 2018 | Javier Unciti Juan | 2,018 | chT-Madrid 1718 | B10 |
| Feb 2018 | David Garcia Prados | 1,919 | ch-Madrid Previa-B | E19 |
| Feb 2018 | Francisco Manuel Cano Mercado | 1,819 | ch-Madrid Previa-B | D02 |
| Apr 2016 | Enrique Iriarte Gomez | 1,720 | 26th Madrid San Viator Open B | A46 |
| May 2016 | Ivan Sanchez Ortega | 1,668 | 26th Madrid San Viator Open B | D04 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| ch-Madrid Previa-B | 2018 | 9 | 5 | 1,831 |
| 26th Madrid San Viator Open B | 2016 | 9 | 8 | 1,853 |
| chT-ESP Rapid | 2024 | 4 | 0.5 | 1,829 |
| chT-ESP U14 | 2008 | 3 | 0 | 1,297 |
| chT-Madrid 1819 | 2019 | 2 | 0.5 | 1,987 |
| chT-Madrid 1920 Honor | 2020 | 2 | 1 | 2,017 |
| Coin Open | 2021 | 1 | 0 | 1,747 |
| ch-ESP U14 | 2008 | 1 | 0 | 1,389 |
Interactive opening tree from all 33 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Juan Antonio Marquez Leon's chess games?
33 games by Juan Antonio Marquez Leon, from Sep 2010 to Jul 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 Juan Antonio Marquez Leon has played.
What does Juan Antonio Marquez Leon play on the first move as White?
Across 16 games with White in our database, Juan Antonio Marquez Leon opens with 1.d4 (94% of games), 1.e4 (6% of games). Against 1.e4 as Black, Juan Antonio Marquez Leon answers 1...e5 (40% of games), 1...c6 (30% of games), 1...c5 (30% of games). Against 1.d4: 1...d5 (75% of games), 1...e6 (25% of games).
What openings does Juan Antonio Marquez Leon play as White?
As White, Juan Antonio Marquez Leon's most-played openings in our database are: London System (4 games, 25.0% win rate); Indian Defense (2 games, 50.0% win rate); Benoni Defense (2 games, 50.0% win rate). The full breakdown of 16 games with White is in the table above.
What openings does Juan Antonio Marquez Leon play as Black?
As Black, Juan Antonio Marquez Leon most often plays: Italian Game: Classical Variation (2 games, 0.0% win rate); Slav Defense (2 games, 100.0% win rate); Sicilian (2 games, 50.0% win rate). See the table above for the top ten Black openings across 17 games.
What is Juan Antonio Marquez Leon's FIDE rating?
Juan Antonio Marquez Leon is currently rated 1,995 in classical chess, 1,899 in rapid and 1,868 in blitz. Peak classical rating: 2,034 (Dec 2025).
How many games has Juan Antonio Marquez Leon played?
Our database contains 33 games by Juan Antonio Marquez Leon, covering Sep 2010 to Jul 2026. Overall record: 13 wins, 6 draws, 14 losses (39.4% win rate).
How do I prepare against Juan Antonio Marquez Leon?
33 games by Juan Antonio Marquez Leon 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.