Prepare against Alfonso Jerez Perez
IM · Spain · World #3,367 classical · FIDE ID 2204100
When preparing against Alfonso Jerez Perez, expect 1.e4 in 80% of White games. Against 1.e4 the reply is 1...e6 (31% of games); against 1.d4, 1...Nf6 (92%). Lowest win rate among frequent openings: French: Winawer Variation as Black, 9.5% over 21 games.
Our database contains 1,320 games by Alfonso Jerez Perez, covering Apr 2003 to Aug 2026. Below you'll find Alfonso Jerez Perez's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Alfonso Jerez Perez 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 | 2,324 | 2,435 | Jan 2018 |
| Rapid | 2,348 | 2,456 | May 2021 |
| Blitz | 2,357 | 2,412 | Jun 2018 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 1,320 | 438 | 568 | 314 | 33.2% |
| As White | 676 | 250 | 291 | 135 | 37.0% |
| As Black | 644 | 188 | 277 | 179 | 29.2% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Alfonso Jerez Perez's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Alfonso Jerez Perez's side.
First moves as White (676 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 541 | 80.0% | 56.6% |
| d4 | 80 | 11.8% | 64.4% |
| Nf3 | 40 | 5.9% | 73.8% |
| b3 | 10 | 1.5% | 50.0% |
| c4 | 3 | 0.4% | 66.7% |
| a3 | 1 | 0.1% | 50.0% |
Main lines as White
- 1.e4 — 80% of White games, 56.6% score
- …c5 (45% of these games) — Perez usually continues c3 (56.1% score)
- …e6 (15% of these games) — Perez usually continues d4 (54.4% score)
- …e5 (13% of these games) — Perez usually continues Nf3 (50.0% score)
- 1.d4 — 12% of White games, 64.4% score
- …Nf6 (64% of these games) — Perez usually continues c4 (66.1% score)
- …d5 (20% of these games) — Perez usually continues c4 (42.3% score)
- …e6 (6% of these games) — Perez usually continues c4 (60.0% score)
As Black against 1.e4 (295 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e6 | 90 | 30.5% | 48.3% |
| c5 | 87 | 29.5% | 56.3% |
| Nc6 | 71 | 24.1% | 54.9% |
| d5 | 19 | 6.4% | 63.2% |
| c6 | 16 | 5.4% | 46.9% |
| e5 | 6 | 2.0% | 41.7% |
As Black against 1.d4 (214 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 196 | 91.6% | 50.0% |
| d5 | 11 | 5.1% | 45.5% |
| e6 | 5 | 2.3% | 50.0% |
| g6 | 1 | 0.5% | 50.0% |
| e5 | 1 | 0.5% | 100.0% |
Alfonso Jerez Perez's chess games
All 1,320 games by Alfonso Jerez Perez in the Chess.ceo database (Apr 2003 - Aug 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: 438 wins, 568 draws, 314 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B22 | Sicilian: Alapin | 163 | 55/73/35 | 33.7% |
| B22 | Sicilian | 47 | 14/25/8 | 29.8% |
| C15 | French: Winawer Variation | 34 | 10/18/6 | 29.4% |
| B06 | Modern Defense | 27 | 12/11/4 | 44.4% |
| B07 | Pirc Defense | 27 | 7/13/7 | 25.9% |
| A46 | Indian Defense | 24 | 11/10/3 | 45.8% |
| C30 | King's Gambit | 20 | 12/5/3 | 60.0% |
| B03 | Alekhine Defense | 20 | 12/6/2 | 60.0% |
| C02 | French: Advance Variation | 18 | 6/9/3 | 33.3% |
| B01 | Scandinavian Defense: Main Line | 16 | 4/7/5 | 25.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D85 | Grünfeld Defense | 83 | 25/36/22 | 30.1% |
| A16 | English Opening | 65 | 12/33/20 | 18.5% |
| D85 | Indian Defense | 44 | 11/21/12 | 25.0% |
| B63 | Sicilian | 44 | 16/15/13 | 36.4% |
| B00 | Nimzowitsch Defense | 43 | 14/14/15 | 32.6% |
| B00 | Nimzowitsch Defense: Scandinavian Variation | 26 | 11/13/2 | 42.3% |
| C11 | French: Classical Variation | 21 | 6/9/6 | 28.6% |
| C18 | French: Winawer Variation | 21 | 2/13/6 | 9.5% |
| C07 | French: Tarrasch Variation | 19 | 5/7/7 | 26.3% |
| E18 | Queen's Indian Defense | 19 | 6/7/6 | 31.6% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Aug 2006 | Rafael Leitao | 2,598 | 07th Figueres Open | D80 |
| Jul 2010 | Sergey Volkov | 2,597 | 3rd Paleochora Open | C11 |
| Jul 2014 | Artur Kogan | 2,548 | 32nd Andorra Open | B01 |
| Jul 2004 | Fernando Peralta | 2,541 | 22nd Andorra Open | D85 |
| May 2017 | Alvar Alonso Rosell | 2,537 | ch-CAT | E18 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| chT-Catalunya | 2014 | 82 | 44.5 | 2,399 |
| ch-Catalunya | 2016 | 54 | 31 | 2,394 |
| chT-ESP | 2004 | 52 | 26.5 | 2,400 |
| chT-Catalunya Gp1 | 2023 | 51 | 22 | 2,389 |
| Foment Martinenc Open | 1998 | 38 | 25.5 | 2,385 |
| Titled Tuesday | 2020 | 32 | 14 | 2,280 |
| Barbera del Valles Open | 1999 | 25 | 13 | 2,384 |
| St Cugat Open | 1998 | 23 | 13.5 | 2,357 |
Frequent opponents
Head-to-head records: Alvar Alonso Rosell (15 games) · Antonio Gual Pascual (15 games) · Viktor Moskalenko (14 games) · Oscar De La Riva Aguado (12 games) · Marc Narciso Dublan (11 games) · Victor Manuel Vehi Bach (10 games) · Javier B. Campos Moreno (10 games) · Jorge A. Gonzalez Rodriguez (10 games)
Interactive opening tree from all 1,320 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Alfonso Jerez Perez's chess games?
1,320 games by Alfonso Jerez Perez, from Apr 2003 to Aug 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 Alfonso Jerez Perez has played.
What does Alfonso Jerez Perez play on the first move as White?
Across 676 games with White in our database, Alfonso Jerez Perez opens with 1.e4 (80% of games), 1.d4 (12% of games), 1.Nf3 (6% of games). Against 1.e4 as Black, Alfonso Jerez Perez answers 1...e6 (31% of games), 1...c5 (29% of games), 1...Nc6 (24% of games). Against 1.d4: 1...Nf6 (92% of games), 1...d5 (5% of games), 1...e6 (2% of games).
What openings does Alfonso Jerez Perez play as White?
As White, Alfonso Jerez Perez's most-played openings in our database are: Sicilian: Alapin (163 games, 33.7% win rate); Sicilian (47 games, 29.8% win rate); French: Winawer Variation (34 games, 29.4% win rate). The full breakdown of 676 games with White is in the table above.
What openings does Alfonso Jerez Perez play as Black?
As Black, Alfonso Jerez Perez most often plays: Grünfeld Defense (83 games, 30.1% win rate); English Opening (65 games, 18.5% win rate); Indian Defense (44 games, 25.0% win rate). See the table above for the top ten Black openings across 644 games.
What is Alfonso Jerez Perez's FIDE rating?
Alfonso Jerez Perez is currently rated 2,324 in classical chess, 2,348 in rapid and 2,357 in blitz. Peak classical rating: 2,435 (Jan 2018).
How many games has Alfonso Jerez Perez played?
Our database contains 1,320 games by Alfonso Jerez Perez, covering Apr 2003 to Aug 2026. Overall record: 438 wins, 568 draws, 314 losses (33.2% win rate).
How do I prepare against Alfonso Jerez Perez?
1,320 games by Alfonso Jerez Perez 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.