Prepare against Thais Castillo Morales
CRI · World #57,547 classical · FIDE ID 6507395
When preparing against Thais Castillo Morales, expect 1.c4 in 100% of White games. Against 1.e4 the reply is 1...e6 (100% of games); against 1.d4, 1...e6 (100%). Lowest win rate among frequent openings: English Opening as White, 37.5% over 16 games.
Our database contains 82 games by Thais Castillo Morales, covering Feb 2014 to Nov 2026. Below you'll find Thais Castillo Morales's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Thais Castillo Morales 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 | 1,866 | 1,983 | Jun 2018 |
| Rapid | 1,942 | 1,942 | Nov 2026 |
| Blitz | 1,830 | 1,830 | Nov 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 82 | 37 | 13 | 32 | 45.1% |
| As White | 45 | 21 | 6 | 18 | 46.7% |
| As Black | 37 | 16 | 7 | 14 | 43.2% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Thais Castillo Morales's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Thais Castillo Morales's side.
First moves as White (45 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c4 | 45 | 100.0% | 53.3% |
Main lines as White
- 1.c4 — 100% of White games, 53.3% score
- …c5 (22% of these games) — Morales usually continues Nf3 (64.3% score)
- …c6 (20% of these games) — Morales usually continues g3 (10.0% score)
- …e5 (18% of these games) — Morales usually continues g3 (58.3% score)
As Black against 1.e4 (18 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e6 | 18 | 100.0% | 61.1% |
As Black against 1.d4 (15 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e6 | 15 | 100.0% | 36.7% |
Thais Castillo Morales's chess games
All 82 games by Thais Castillo Morales in the Chess.ceo database (Feb 2014 - Nov 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: 37 wins, 13 draws, 32 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A14 | English Opening | 16 | 6/5/5 | 37.5% |
| A29 | English Opening: Reverse Sicilian | 8 | 5/1/2 | 62.5% |
| A36 | English Opening: Symmetrical | 8 | 5/0/3 | 62.5% |
| A11 | English Opening: Slav Setup | 7 | 1/0/6 | 14.3% |
| A10 | English Opening: Dutch Defense | 2 | 1/0/1 | 50.0% |
| A26 | Modern Defense | 2 | 1/0/1 | 50.0% |
| A13 | English Opening: Chimer System | 1 | 1/0/0 | 100.0% |
| A12 | Réti Opening | 1 | 1/0/0 | 100.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C09 | French: Tarrasch Variation | 6 | 1/2/3 | 16.7% |
| C01 | French: Exchange Variation | 5 | 4/0/1 | 80.0% |
| A46 | Indian Defense | 3 | 2/0/1 | 66.7% |
| C01 | French Defense | 3 | 1/2/0 | 33.3% |
| A80 | Horwitz Defense | 3 | 2/0/1 | 66.7% |
| E12 | Queen's Indian Defense | 3 | 0/0/3 | 0.0% |
| E32 | Nimzo-Indian: Classical Variation | 2 | 1/0/1 | 50.0% |
| A08 | King's Indian Attack | 2 | 2/0/0 | 100.0% |
| A08 | Réti Opening | 1 | 1/0/0 | 100.0% |
| A03 | Bird's opening | 1 | 1/0/0 | 100.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jan 2020 | Carlos Esteban Murillo Gonzalez | 1,964 | ch-CRI | A03 |
| Jan 2019 | Melanie Salazar Gould | 1,912 | ch-CRI w | A46 |
| Aug 2020 | Guadalupe Encina | 1,892 | Online Olympiad Div2 E | B38 |
| Jul 2017 | Rachel Miller | 1,857 | ch-Pan American U18 Girls | A31 |
| Jan 2020 | Luis Javier Cartin Aguilar | 1,846 | ch-CRI | B38 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| ch-CRI w | 2024 | 23 | 13 | 1,706 |
| ch-CRI | 2020 | 10 | 4.5 | 1,935 |
| Olympiad Women-43 | 2018 | 8 | 3.5 | 1,946 |
| ch-Pan American U16 Girls | 2015 | 7 | 3 | 1,721 |
| ch-CRC qual w | 2016 | 7 | 4.5 | 1,882 |
| San Jose subzonal w 2.3.c | 2018 | 6 | 4.5 | 1,913 |
| Online Olympiad Div2 E | 2020 | 6 | 1 | 1,681 |
| Online Olym Div3 E | 2020 | 5 | 4 | 2,074 |
Interactive opening tree from all 82 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Thais Castillo Morales's chess games?
82 games by Thais Castillo Morales, from Feb 2014 to Nov 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 Thais Castillo Morales has played.
What does Thais Castillo Morales play on the first move as White?
Across 45 games with White in our database, Thais Castillo Morales opens with 1.c4 (100% of games). Against 1.e4 as Black, Thais Castillo Morales answers 1...e6 (100% of games). Against 1.d4: 1...e6 (100% of games).
What openings does Thais Castillo Morales play as White?
As White, Thais Castillo Morales's most-played openings in our database are: English Opening (16 games, 37.5% win rate); English Opening: Reverse Sicilian (8 games, 62.5% win rate); English Opening: Symmetrical (8 games, 62.5% win rate). The full breakdown of 45 games with White is in the table above.
What openings does Thais Castillo Morales play as Black?
As Black, Thais Castillo Morales most often plays: French: Tarrasch Variation (6 games, 16.7% win rate); French: Exchange Variation (5 games, 80.0% win rate); Indian Defense (3 games, 66.7% win rate). See the table above for the top ten Black openings across 37 games.
What is Thais Castillo Morales's FIDE rating?
Thais Castillo Morales is currently rated 1,866 in classical chess, 1,942 in rapid and 1,830 in blitz. Peak classical rating: 1,983 (Jun 2018).
How many games has Thais Castillo Morales played?
Our database contains 82 games by Thais Castillo Morales, covering Feb 2014 to Nov 2026. Overall record: 37 wins, 13 draws, 32 losses (45.1% win rate).
How do I prepare against Thais Castillo Morales?
82 games by Thais Castillo Morales 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.