Prepare against Monica Calzetta Ruiz
WGM · Spain · World #9,323 classical · FIDE ID 2204185
When preparing against Monica Calzetta Ruiz, expect 1.e4 in 98% of White games. Against 1.e4 the reply is 1...c5 (91% of games); against 1.d4, 1...Nf6 (89%). Lowest win rate among frequent openings: English Opening: Symmetrical as Black, 10.5% over 38 games.
Our database contains 1,567 games by Monica Calzetta Ruiz, covering Apr 2003 to Sep 2026. Below you'll find Monica Calzetta Ruiz's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Monica Calzetta Ruiz 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 | 2,181 | 2,386 | Sep 2009 |
| Rapid | 2,150 | 2,264 | Aug 2018 |
| Blitz | 2,074 | 2,212 | Oct 2014 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 1,567 | 593 | 387 | 587 | 37.8% |
| As White | 780 | 331 | 199 | 250 | 42.4% |
| As Black | 787 | 262 | 188 | 337 | 33.3% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Monica Calzetta Ruiz's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Monica Calzetta Ruiz's side.
First moves as White (780 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 765 | 98.1% | 55.1% |
| c4 | 13 | 1.7% | 65.4% |
| d4 | 2 | 0.3% | 25.0% |
Main lines as White
- 1.e4 — 98% of White games, 55.1% score
- …c5 (43% of these games) — Ruiz usually continues Nf3 (47.5% score)
- …e5 (23% of these games) — Ruiz usually continues Nf3 (60.9% score)
- …e6 (12% of these games) — Ruiz usually continues d4 (56.2% score)
- 1.c4 — 2% of White games, 65.4% score
- …e5 (54% of these games) — Ruiz usually continues Nc3 (80.0% score)
- …Nf6 (15% of these games) — Ruiz usually continues Nc3 (100.0% score)
- …c5 (8% of these games) — Ruiz usually continues Nc3 (0.0% score)
As Black against 1.e4 (388 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 353 | 91.0% | 51.4% |
| e5 | 15 | 3.9% | 50.0% |
| e6 | 8 | 2.1% | 68.8% |
| d5 | 7 | 1.8% | 42.9% |
| b6 | 3 | 0.8% | 33.3% |
| c6 | 1 | 0.3% | 50.0% |
As Black against 1.d4 (268 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 238 | 88.8% | 39.5% |
| d5 | 27 | 10.1% | 51.9% |
| e6 | 1 | 0.4% | 0.0% |
| c5 | 1 | 0.4% | 50.0% |
Monica Calzetta Ruiz's chess games
All 1,567 games by Monica Calzetta Ruiz 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: 593 wins, 387 draws, 587 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B43 | Sicilian | 116 | 37/30/49 | 31.9% |
| C07 | French: Tarrasch Variation | 75 | 33/20/22 | 44.0% |
| C77 | Ruy Lopez: Morphy Defense | 63 | 31/13/19 | 49.2% |
| B23 | Sicilian: Closed | 44 | 19/12/13 | 43.2% |
| B90 | Sicilian: Najdorf | 42 | 11/9/22 | 26.2% |
| B07 | Pirc Defense | 29 | 16/9/4 | 55.2% |
| C91 | Ruy Lopez: Closed | 28 | 8/14/6 | 28.6% |
| B48 | Sicilian: Taimanov | 25 | 4/8/13 | 16.0% |
| B13 | Caro-Kann: Exchange Variation | 25 | 8/11/6 | 32.0% |
| B33 | Sicilian: Sveshnikov | 24 | 10/7/7 | 41.7% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A57 | Benoni Defense | 128 | 36/29/63 | 28.1% |
| B29 | Sicilian | 83 | 28/24/31 | 33.7% |
| B36 | Sicilian: Accelerated Dragon | 59 | 24/16/19 | 40.7% |
| B70 | Sicilian: Dragon | 59 | 22/13/24 | 37.3% |
| A48 | Indian Defense | 55 | 14/11/30 | 25.5% |
| B23 | Sicilian: Closed | 45 | 20/10/15 | 44.4% |
| A36 | English Opening: Symmetrical | 38 | 4/12/22 | 10.5% |
| B27 | Sicilian: Hyperaccelerated Dragon | 29 | 10/7/12 | 34.5% |
| B22 | Sicilian: Alapin | 28 | 12/6/10 | 42.9% |
| A04 | Réti Opening | 27 | 8/6/13 | 29.6% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Aug 2008 | Thomas Luther | 2,570 | 1st Chambery | C41 |
| Jan 2011 | Jean-Pierre Le Roux | 2,551 | 9th Gibraltar Masters | C77 |
| Jan 2011 | Ray Robson | 2,532 | 9th Gibraltar Masters | C04 |
| Jul 2009 | Ioannis Nikolaidis | 2,529 | 1st Leros Artemis Cup | C77 |
| Jul 2007 | Dejan Bojkov | 2,520 | 13th Chambery Open | C86 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| ch-ESP w | 2017 | 53 | 38.5 | 2,307 |
| Las Palmas Open | 1996 | 27 | 12.5 | 2,377 |
| Olomouc Valoz Cup | 2002 | 17 | 6.5 | 2,222 |
| Wch U26 w | 1998 | 17 | 9.5 | 2,240 |
| ch-ESP | 1994 | 16 | 6.5 | 2,270 |
| Pamplona Open | 2007 | 15 | 10.5 | 2,307 |
| chT-ESP CECLUB Div1 | 2022 | 14 | 7 | 2,078 |
| Kishinev Interzonal w | 1995 | 13 | 5.5 | 2,265 |
Frequent opponents
Head-to-head records: Sabrina Vega Gutierrez (10 games)
Interactive opening tree from all 1,567 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Monica Calzetta Ruiz's chess games?
1,567 games by Monica Calzetta Ruiz, 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 Monica Calzetta Ruiz has played.
What does Monica Calzetta Ruiz play on the first move as White?
Across 780 games with White in our database, Monica Calzetta Ruiz opens with 1.e4 (98% of games), 1.c4 (2% of games), 1.d4 (0% of games). Against 1.e4 as Black, Monica Calzetta Ruiz answers 1...c5 (91% of games), 1...e5 (4% of games), 1...e6 (2% of games). Against 1.d4: 1...Nf6 (89% of games), 1...d5 (10% of games), 1...e6 (0% of games).
What openings does Monica Calzetta Ruiz play as White?
As White, Monica Calzetta Ruiz's most-played openings in our database are: Sicilian (116 games, 31.9% win rate); French: Tarrasch Variation (75 games, 44.0% win rate); Ruy Lopez: Morphy Defense (63 games, 49.2% win rate). The full breakdown of 780 games with White is in the table above.
What openings does Monica Calzetta Ruiz play as Black?
As Black, Monica Calzetta Ruiz most often plays: Benoni Defense (128 games, 28.1% win rate); Sicilian (83 games, 33.7% win rate); Sicilian: Accelerated Dragon (59 games, 40.7% win rate). See the table above for the top ten Black openings across 787 games.
What is Monica Calzetta Ruiz's FIDE rating?
Monica Calzetta Ruiz is currently rated 2,181 in classical chess, 2,150 in rapid and 2,074 in blitz. Peak classical rating: 2,386 (Sep 2009).
How many games has Monica Calzetta Ruiz played?
Our database contains 1,567 games by Monica Calzetta Ruiz, covering Apr 2003 to Sep 2026. Overall record: 593 wins, 387 draws, 587 losses (37.8% win rate).
How do I prepare against Monica Calzetta Ruiz?
1,567 games by Monica Calzetta Ruiz 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.