Prepare against Mario Leon Fernandez
Spain · World #11,377 classical · FIDE ID 2267969
Our database contains 78 games by Mario Leon Fernandez, covering Jul 2004 to Jul 2026. Below you'll find Mario Leon Fernandez's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Mario Leon Fernandez 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 | 2,149 | 2,149 | Jul 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 78 | 39 | 14 | 25 | 50.0% |
| As White | 42 | 21 | 8 | 13 | 50.0% |
| As Black | 36 | 18 | 6 | 12 | 50.0% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Mario Leon Fernandez's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Mario Leon Fernandez's side.
First moves as White (42 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 32 | 76.2% | 62.5% |
| e4 | 9 | 21.4% | 44.4% |
| Nf3 | 1 | 2.4% | 100.0% |
Main lines as White
- 1.d4 — 76% of White games, 62.5% score
- …Nf6 (41% of these games) — Fernandez usually continues c4 (61.5% score)
- …d5 (34% of these games) — Fernandez usually continues c4 (63.6% score)
- …d6 (9% of these games) — Fernandez usually continues c4 (0.0% score)
- 1.e4 — 21% of White games, 44.4% score
- …c5 (44% of these games) — Fernandez usually continues Nf3 (25.0% score)
- …e5 (22% of these games) — Fernandez usually continues Nf3 (100.0% score)
- …e6 (22% of these games) — Fernandez usually continues d4 (25.0% score)
As Black against 1.e4 (23 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 23 | 100.0% | 63.0% |
As Black against 1.d4 (7 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 4 | 57.1% | 50.0% |
| Nf6 | 3 | 42.9% | 100.0% |
Mario Leon Fernandez's chess games
All 78 games by Mario Leon Fernandez in the Chess.ceo database (Jul 2004 - 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: 39 wins, 14 draws, 25 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D10 | Slav Defense | 5 | 3/1/1 | 60.0% |
| D30 | Queen's Gambit Declined | 3 | 1/1/1 | 33.3% |
| A52 | Budapest Defense | 3 | 1/2/0 | 33.3% |
| E91 | King's Indian Defense: Orthodox Variation | 3 | 2/1/0 | 66.7% |
| A60 | Catalan | 3 | 2/0/1 | 66.7% |
| A41 | Queen's Pawn Game | 3 | 1/0/2 | 33.3% |
| B72 | Sicilian: Dragon | 3 | 0/0/3 | 0.0% |
| C01 | French: Exchange Variation | 2 | 0/1/1 | 0.0% |
| A80 | Dutch Defense | 2 | 2/0/0 | 100.0% |
| C54 | Italian Game: Classical Variation | 2 | 2/0/0 | 100.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C50 | Italian Game | 7 | 2/3/2 | 28.6% |
| A46 | Indian Defense | 4 | 3/0/1 | 75.0% |
| C78 | Ruy Lopez: Morphy Defense | 3 | 1/1/1 | 33.3% |
| D30 | Queen's Gambit Declined | 3 | 1/0/2 | 33.3% |
| C45 | Scotch Game | 2 | 2/0/0 | 100.0% |
| C53 | Italian Game: Classical Variation | 2 | 1/0/1 | 50.0% |
| C30 | King's Gambit | 2 | 2/0/0 | 100.0% |
| C50 | Italian Game: Giuoco Pianissimo | 1 | 1/0/0 | 100.0% |
| C58 | Italian Game: Two Knights Defense | 1 | 0/0/1 | 0.0% |
| D01 | Queen's Pawn Game: Chigorin Variation | 1 | 1/0/0 | 100.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Mar 2007 | Miguel Sanchez Herrera | 2,210 | chT-Aragon Autonomico | A95 |
| Mar 2007 | Adrian Villuendas Valero | 2,176 | 13th Alfaro Open | E04 |
| Mar 2007 | Ignacio Soriano Ascaso | 2,154 | chT-Aragon Autonomico | A40 |
| Apr 2004 | Juan Jose Arino Lison | 2,126 | Ardid Memorial Open | C45 |
| Feb 2007 | Valentin Cantin Zaborras | 2,125 | chT-Aragon Autonomico | C56 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| ch-ESP U10 | 2002 | 20 | 12 | – |
| 13th Alfaro Open | 2007 | 8 | 6 | 2,328 |
| Alfaro Open 14th | 2008 | 7 | 5 | 2,379 |
| ch-ESP U12 | 2004 | 7 | 4 | 2,032 |
| ch-ESP U14 | 2005 | 7 | 5.5 | 2,293 |
| chT-Aragon Autonomico | 2007 | 7 | 3.5 | 2,172 |
| Ardid Memorial Open | 2004 | 6 | 3 | 2,203 |
| 1st Alfaro PAC Rioja Open | 2001 | 6 | 3.5 | 1,953 |
Interactive opening tree from all 78 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Mario Leon Fernandez's chess games?
78 games by Mario Leon Fernandez, from Jul 2004 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 Mario Leon Fernandez has played.
What does Mario Leon Fernandez play on the first move as White?
Across 42 games with White in our database, Mario Leon Fernandez opens with 1.d4 (76% of games), 1.e4 (21% of games), 1.Nf3 (2% of games). Against 1.e4 as Black, Mario Leon Fernandez answers 1...e5 (100% of games). Against 1.d4: 1...d5 (57% of games), 1...Nf6 (43% of games).
What openings does Mario Leon Fernandez play as White?
As White, Mario Leon Fernandez's most-played openings in our database are: Slav Defense (5 games, 60.0% win rate); Queen's Gambit Declined (3 games, 33.3% win rate); Budapest Defense (3 games, 33.3% win rate). The full breakdown of 42 games with White is in the table above.
What openings does Mario Leon Fernandez play as Black?
As Black, Mario Leon Fernandez most often plays: Italian Game (7 games, 28.6% win rate); Indian Defense (4 games, 75.0% win rate); Ruy Lopez: Morphy Defense (3 games, 33.3% win rate). See the table above for the top ten Black openings across 36 games.
What is Mario Leon Fernandez's FIDE rating?
Mario Leon Fernandez is currently rated 2,149 in classical chess. Peak classical rating: 2,149 (Jul 2026).
How many games has Mario Leon Fernandez played?
Our database contains 78 games by Mario Leon Fernandez, covering Jul 2004 to Jul 2026. Overall record: 39 wins, 14 draws, 25 losses (50.0% win rate).
How do I prepare against Mario Leon Fernandez?
78 games by Mario Leon Fernandez 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.