Prepare against Sebastian Almagro Mazariegos
FM · Spain · World #6,118 classical · FIDE ID 2221640
When preparing against Sebastian Almagro Mazariegos, expect 1.e4 in 85% of White games. Against 1.e4 the reply is 1...c5 (91% of games); against 1.d4, 1...Nf6 (92%). Lowest win rate among frequent openings: Sicilian: Najdorf as Black, 24.3% over 37 games.
Our database contains 374 games by Sebastian Almagro Mazariegos, covering Apr 2003 to Sep 2026. Below you'll find Sebastian Almagro Mazariegos's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Sebastian Almagro Mazariegos 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 | 2,245 | 2,346 | Jan 2015 |
| Rapid | 2,233 | 2,339 | Jan 2014 |
| Blitz | 2,223 | 2,347 | Aug 2016 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 374 | 125 | 54 | 195 | 33.4% |
| As White | 186 | 74 | 30 | 82 | 39.8% |
| As Black | 188 | 51 | 24 | 113 | 27.1% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Sebastian Almagro Mazariegos's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Sebastian Almagro Mazariegos's side.
First moves as White (186 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 158 | 84.9% | 46.2% |
| Nf3 | 16 | 8.6% | 53.1% |
| d4 | 10 | 5.4% | 60.0% |
| c4 | 2 | 1.1% | 75.0% |
Main lines as White
- 1.e4 — 85% of White games, 46.2% score
- …c5 (46% of these games) — Mazariegos usually continues Nf3 (41.8% score)
- …e5 (16% of these games) — Mazariegos usually continues Nf3 (45.8% score)
- …c6 (13% of these games) — Mazariegos usually continues c4 (58.3% score)
- 1.Nf3 — 9% of White games, 53.1% score
- …Nf6 (44% of these games) — Mazariegos usually continues c4 (60.0% score)
- …d5 (25% of these games) — Mazariegos usually continues b3 (75.0% score)
- …c5 (19% of these games) — Mazariegos usually continues e4 (50.0% score)
As Black against 1.e4 (93 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 85 | 91.4% | 32.9% |
| c6 | 3 | 3.2% | 50.0% |
| d6 | 2 | 2.2% | 25.0% |
| e5 | 1 | 1.1% | 50.0% |
| e6 | 1 | 1.1% | 0.0% |
As Black against 1.d4 (59 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 54 | 91.5% | 33.3% |
| d5 | 5 | 8.5% | 60.0% |
Sebastian Almagro Mazariegos's chess games
All 374 games by Sebastian Almagro Mazariegos in the Chess.ceo database (Apr 2003 - 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: 125 wins, 54 draws, 195 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B43 | Sicilian | 26 | 10/3/13 | 38.5% |
| B90 | Sicilian: Najdorf | 22 | 6/2/14 | 27.3% |
| C07 | French: Tarrasch Variation | 14 | 6/1/7 | 42.9% |
| B10 | Caro-Kann | 11 | 5/2/4 | 45.5% |
| B76 | Sicilian: Dragon | 9 | 2/0/7 | 22.2% |
| C45 | Scotch Game | 7 | 2/2/3 | 28.6% |
| B06 | Modern Defense | 7 | 4/0/3 | 57.1% |
| A30 | English Opening | 6 | 1/5/0 | 16.7% |
| A41 | Indian Defense | 6 | 3/0/3 | 50.0% |
| B07 | Pirc Defense | 5 | 1/0/4 | 20.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B90 | Sicilian: Najdorf | 37 | 9/4/24 | 24.3% |
| B50 | Sicilian | 23 | 7/3/13 | 30.4% |
| E68 | Indian Defense | 10 | 2/2/6 | 20.0% |
| A36 | English Opening | 9 | 4/2/3 | 44.4% |
| E91 | King's Indian Defense: Orthodox Variation | 9 | 2/3/4 | 22.2% |
| E11 | Bogo-Indian Defense | 7 | 2/0/5 | 28.6% |
| B22 | Sicilian: Alapin | 6 | 3/0/3 | 50.0% |
| B23 | Sicilian: Closed | 6 | 0/0/6 | 0.0% |
| D85 | Grünfeld Defense | 6 | 3/0/3 | 50.0% |
| A05 | Réti Opening: Symmetrical Defense | 5 | 1/0/4 | 20.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jul 2010 | Dragan Paunovic | 2,553 | Pamplona San Juan Open 4th | A24 |
| Aug 2016 | Ivan Valles Moreno | 2,447 | ch-ESP rapid | B86 |
| Apr 2009 | Diego Guerra Bastida | 2,420 | 36th La Roda Open | E49 |
| Aug 2019 | Pedro Antonio Gines Esteo | 2,417 | 7th ch-Iberoamerican | D94 |
| Sep 2024 | Ilyass Msellek | 2,406 | Titled Tue Late | E47 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Titled Tuesday | 2025 | 181 | 75 | 2,124 |
| 2nd 3-0 Thursday | 2026 | 36 | 10.5 | 2,031 |
| 1st Hellin A | 2014 | 9 | 4.5 | 2,293 |
| ch-ESP Rapid | 2023 | 9 | 5.5 | 2,340 |
| Mancha Real UPI | 2001 | 9 | 2 | 2,120 |
| Mancha Real schev | 2002 | 9 | 6 | 2,412 |
| 7th ch-Iberoamerican | 2019 | 9 | 5.5 | 2,405 |
| ch-ESP rapid | 2016 | 8 | 4.5 | 2,294 |
Interactive opening tree from all 374 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Sebastian Almagro Mazariegos's chess games?
374 games by Sebastian Almagro Mazariegos, from Apr 2003 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 Sebastian Almagro Mazariegos has played.
What does Sebastian Almagro Mazariegos play on the first move as White?
Across 186 games with White in our database, Sebastian Almagro Mazariegos opens with 1.e4 (85% of games), 1.Nf3 (9% of games), 1.d4 (5% of games). Against 1.e4 as Black, Sebastian Almagro Mazariegos answers 1...c5 (91% of games), 1...c6 (3% of games), 1...d6 (2% of games). Against 1.d4: 1...Nf6 (92% of games), 1...d5 (8% of games).
What openings does Sebastian Almagro Mazariegos play as White?
As White, Sebastian Almagro Mazariegos's most-played openings in our database are: Sicilian (26 games, 38.5% win rate); Sicilian: Najdorf (22 games, 27.3% win rate); French: Tarrasch Variation (14 games, 42.9% win rate). The full breakdown of 186 games with White is in the table above.
What openings does Sebastian Almagro Mazariegos play as Black?
As Black, Sebastian Almagro Mazariegos most often plays: Sicilian: Najdorf (37 games, 24.3% win rate); Sicilian (23 games, 30.4% win rate); Indian Defense (10 games, 20.0% win rate). See the table above for the top ten Black openings across 188 games.
What is Sebastian Almagro Mazariegos's FIDE rating?
Sebastian Almagro Mazariegos is currently rated 2,245 in classical chess, 2,233 in rapid and 2,223 in blitz. Peak classical rating: 2,346 (Jan 2015).
How many games has Sebastian Almagro Mazariegos played?
Our database contains 374 games by Sebastian Almagro Mazariegos, covering Apr 2003 to Sep 2026. Overall record: 125 wins, 54 draws, 195 losses (33.4% win rate).
How do I prepare against Sebastian Almagro Mazariegos?
374 games by Sebastian Almagro Mazariegos 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.