Prepare against Jon Goni Sierro
Spain · World #11,409 classical · FIDE ID 54736218
Our database contains 62 games by Jon Goni Sierro, covering Aug 2021 to Jul 2026. Below you'll find Jon Goni Sierro's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Jon Goni Sierro 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 | 2,181 | May 2026 |
| Rapid | 1,947 | 1,947 | Jul 2026 |
| Blitz | 1,992 | 1,992 | Jul 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 62 | 33 | 14 | 15 | 53.2% |
| As White | 29 | 14 | 8 | 7 | 48.3% |
| As Black | 33 | 19 | 6 | 8 | 57.6% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Jon Goni Sierro's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Jon Goni Sierro's side.
First moves as White (29 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 21 | 72.4% | 66.7% |
| d4 | 7 | 24.1% | 57.1% |
| Nf3 | 1 | 3.4% | 0.0% |
Main lines as White
- 1.e4 — 72% of White games, 66.7% score
- …c5 (38% of these games) — Sierro usually continues Nf3 (71.4% score)
- …e5 (29% of these games) — Sierro usually continues Nf3 (83.3% score)
- …e6 (24% of these games) — Sierro usually continues d4 (70.0% score)
- 1.d4 — 24% of White games, 57.1% score
- …d5 (43% of these games) — Sierro usually continues c4 (50.0% score)
- …Nf6 (43% of these games) — Sierro usually continues c4 (50.0% score)
- …e6 (14% of these games) — Sierro usually continues c4 (100.0% score)
As Black against 1.e4 (20 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 10 | 50.0% | 65.0% |
| g6 | 3 | 15.0% | 100.0% |
| c6 | 2 | 10.0% | 75.0% |
| Nc6 | 2 | 10.0% | 100.0% |
| Nf6 | 2 | 10.0% | 50.0% |
| e6 | 1 | 5.0% | 0.0% |
As Black against 1.d4 (9 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 6 | 66.7% | 58.3% |
| Nf6 | 2 | 22.2% | 100.0% |
| g6 | 1 | 11.1% | 100.0% |
Jon Goni Sierro's chess games
All 62 games by Jon Goni Sierro in the Chess.ceo database (Aug 2021 - 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: 33 wins, 14 draws, 15 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B70 | Sicilian: Dragon | 3 | 2/1/0 | 66.7% |
| A50 | Indian Defense | 2 | 0/1/1 | 0.0% |
| C55 | Italian Game | 2 | 1/1/0 | 50.0% |
| C10 | French Defense | 2 | 2/0/0 | 100.0% |
| C01 | French: Exchange Variation | 1 | 0/0/1 | 0.0% |
| C15 | French: Winawer Variation | 1 | 1/0/0 | 100.0% |
| C55 | Four Knights Game: Italian Variation | 1 | 0/1/0 | 0.0% |
| D85 | Grünfeld Defense | 1 | 0/1/0 | 0.0% |
| C14 | French: Classical Variation | 1 | 0/1/0 | 0.0% |
| B12 | Caro-Kann: Advance Variation | 1 | 0/0/1 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B41 | Sicilian | 4 | 2/0/2 | 50.0% |
| B06 | Modern Defense | 4 | 4/0/0 | 100.0% |
| D10 | Slav Defense | 4 | 2/2/0 | 50.0% |
| B22 | Sicilian: Alapin | 3 | 2/1/0 | 66.7% |
| B02 | Alekhine Defense | 2 | 1/0/1 | 50.0% |
| A16 | English Opening | 2 | 0/0/2 | 0.0% |
| D07 | Queen's Gambit | 2 | 0/2/0 | 0.0% |
| C00 | King's Indian Attack | 1 | 0/0/1 | 0.0% |
| A01 | Nimzovich-Larsen attack | 1 | 1/0/0 | 100.0% |
| B02 | Nimzowitsch Defense | 1 | 1/0/0 | 100.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Feb 2026 | Miguel Ruiz Buendia | 2,302 | Pepe Leuza Memorial | E71 |
| Feb 2026 | Asier Etayo Delgado | 1,982 | Pepe Leuza Memorial 2026 | B13 |
| Feb 2026 | Juan Planas Gene | 1,958 | Pepe Leuza Memorial | D19 |
| Feb 2026 | Roberto Arana Oloron | 1,855 | Pepe Leuza Memorial 2026 | B50 |
| Jul 2023 | Nestor Emmanuel Mendez Gimenez | 1,818 | ch-ESP U12 | B02 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| ch-ESP U12 | 2024 | 18 | 13 | 1,844 |
| ch-ESP U12 Rapid | 2024 | 18 | 11.5 | 1,624 |
| ch-ESP U10 | 2021 | 8 | 5.5 | 1,359 |
| ch-ESP U08 | 2020 | 8 | 4.5 | 1,180 |
| Pepe Leuza Memorial 2026 | 2026 | 6 | 3 | 2,187 |
| Pepe Leuza Memorial | 2026 | 3 | 2.5 | 2,546 |
| 50th La Roda Open | 2024 | 1 | 0 | 2,071 |
Interactive opening tree from all 62 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Jon Goni Sierro's chess games?
62 games by Jon Goni Sierro, from Aug 2021 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 Jon Goni Sierro has played.
What does Jon Goni Sierro play on the first move as White?
Across 29 games with White in our database, Jon Goni Sierro opens with 1.e4 (72% of games), 1.d4 (24% of games), 1.Nf3 (3% of games). Against 1.e4 as Black, Jon Goni Sierro answers 1...c5 (50% of games), 1...g6 (15% of games), 1...c6 (10% of games). Against 1.d4: 1...d5 (67% of games), 1...Nf6 (22% of games), 1...g6 (11% of games).
What openings does Jon Goni Sierro play as White?
As White, Jon Goni Sierro's most-played openings in our database are: Sicilian: Dragon (3 games, 66.7% win rate); Indian Defense (2 games, 0.0% win rate); Italian Game (2 games, 50.0% win rate). The full breakdown of 29 games with White is in the table above.
What openings does Jon Goni Sierro play as Black?
As Black, Jon Goni Sierro most often plays: Sicilian (4 games, 50.0% win rate); Modern Defense (4 games, 100.0% win rate); Slav Defense (4 games, 50.0% win rate). See the table above for the top ten Black openings across 33 games.
What is Jon Goni Sierro's FIDE rating?
Jon Goni Sierro is currently rated 2,149 in classical chess, 1,947 in rapid and 1,992 in blitz. Peak classical rating: 2,181 (May 2026).
How many games has Jon Goni Sierro played?
Our database contains 62 games by Jon Goni Sierro, covering Aug 2021 to Jul 2026. Overall record: 33 wins, 14 draws, 15 losses (53.2% win rate).
How do I prepare against Jon Goni Sierro?
62 games by Jon Goni Sierro 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.