Prepare against Rosa Ratsma
WIM · NLD · World #7,608 classical · FIDE ID 1033662
Our database contains 386 games by Rosa Ratsma, covering Jul 2010 to Jul 2026. Below you'll find Rosa Ratsma's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Rosa Ratsma 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 | 2,212 | 2,306 | Sep 2021 |
| Blitz | 2,241 | 2,287 | Jan 2018 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 386 | 159 | 85 | 142 | 41.2% |
| As White | 189 | 91 | 45 | 53 | 48.1% |
| As Black | 197 | 68 | 40 | 89 | 34.5% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Rosa Ratsma's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Rosa Ratsma's side.
First moves as White (189 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 185 | 97.9% | 60.8% |
| d4 | 2 | 1.1% | 25.0% |
| Nf3 | 2 | 1.1% | 25.0% |
Main lines as White
- 1.e4 — 98% of White games, 60.8% score
- …c5 (37% of these games) — Ratsma usually continues Nf3 (58.9% score)
- …e5 (29% of these games) — Ratsma usually continues Nf3 (73.1% score)
- …e6 (16% of these games) — Ratsma usually continues d4 (56.0% score)
- 1.d4 — 1% of White games, 25.0% score
- …d5 (50% of these games) — Ratsma usually continues Nf3 (0.0% score)
- …Nf6 (50% of these games) — Ratsma usually continues c4 (50.0% score)
As Black against 1.e4 (122 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 102 | 83.6% | 46.1% |
| e5 | 17 | 13.9% | 47.1% |
| e6 | 3 | 2.5% | 50.0% |
As Black against 1.d4 (46 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 41 | 89.1% | 52.4% |
| d5 | 4 | 8.7% | 12.5% |
| g6 | 1 | 2.2% | 0.0% |
Rosa Ratsma's chess games
All 386 games by Rosa Ratsma in the Chess.ceo database (Jul 2010 - 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: 159 wins, 85 draws, 142 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B42 | Sicilian | 24 | 11/5/8 | 45.8% |
| C90 | Ruy Lopez: Closed | 15 | 9/5/1 | 60.0% |
| C06 | French: Tarrasch Variation | 14 | 4/4/6 | 28.6% |
| C78 | Ruy Lopez: Morphy Defense | 13 | 7/3/3 | 53.8% |
| B47 | Sicilian: Taimanov | 12 | 7/2/3 | 58.3% |
| B90 | Sicilian: Najdorf | 11 | 5/2/4 | 45.5% |
| B11 | Caro-Kann: Two Knights Variation | 10 | 4/3/3 | 40.0% |
| C01 | French Defense | 8 | 5/2/1 | 62.5% |
| C60 | Ruy Lopez | 7 | 5/1/1 | 71.4% |
| B11 | Caro-Kann | 6 | 3/1/2 | 50.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B90 | Sicilian: Najdorf | 53 | 17/10/26 | 32.1% |
| B50 | Sicilian | 25 | 13/1/11 | 52.0% |
| B51 | Sicilian: Moscow Variation | 11 | 4/1/6 | 36.4% |
| B22 | Sicilian: Alapin | 7 | 2/4/1 | 28.6% |
| E14 | English Opening | 7 | 2/2/3 | 28.6% |
| E05 | Catalan | 6 | 2/1/3 | 33.3% |
| E90 | King's Indian Defense: Orthodox Variation | 6 | 2/2/2 | 33.3% |
| D24 | Indian Defense | 6 | 3/2/1 | 50.0% |
| A65 | King's Indian: Sämisch | 5 | 2/2/1 | 40.0% |
| E70 | King's Indian Defense | 4 | 2/0/2 | 50.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jun 2017 | Roeland Pruijssers | 2,502 | Hilversum Open | A16 |
| Aug 2020 | Marie Sebag | 2,443 | Online Olympiad Div Top B | B53 |
| Jul 2017 | Francois Godart | 2,411 | 8th Vaujany Open A | C00 |
| Aug 2022 | Anastasia Savina | 2,377 | Olympiad Women-44 | C41 |
| Feb 2022 | Xander Wemmers | 2,375 | 47th Utrecht OKU Masters | E76 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| ch-NED w | 2021 | 28 | 15 | 2,256 |
| ch-NED U13 Girls | 2008 | 27 | 15 | 1,251 |
| ch-NED U15 Girls | 2010 | 18 | 10.5 | 1,743 |
| ch-NED U17 Girls | 2012 | 17 | 11 | 1,714 |
| ch-NED U21 | 2015 | 15 | 6.5 | 2,066 |
| 24th Zadar Open A | 2017 | 9 | 3.5 | 2,254 |
| 28th Krakow Open A | 2018 | 9 | 4.5 | 2,162 |
| 47th Utrecht OKU Masters | 2022 | 9 | 4.5 | 2,303 |
Frequent opponents
Head-to-head records: Anna-Maja Kazarian (10 games)
Interactive opening tree from all 386 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Rosa Ratsma's chess games?
386 games by Rosa Ratsma, from Jul 2010 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 Rosa Ratsma has played.
What does Rosa Ratsma play on the first move as White?
Across 189 games with White in our database, Rosa Ratsma opens with 1.e4 (98% of games), 1.d4 (1% of games), 1.Nf3 (1% of games). Against 1.e4 as Black, Rosa Ratsma answers 1...c5 (84% of games), 1...e5 (14% of games), 1...e6 (2% of games). Against 1.d4: 1...Nf6 (89% of games), 1...d5 (9% of games), 1...g6 (2% of games).
What openings does Rosa Ratsma play as White?
As White, Rosa Ratsma's most-played openings in our database are: Sicilian (24 games, 45.8% win rate); Ruy Lopez: Closed (15 games, 60.0% win rate); French: Tarrasch Variation (14 games, 28.6% win rate). The full breakdown of 189 games with White is in the table above.
What openings does Rosa Ratsma play as Black?
As Black, Rosa Ratsma most often plays: Sicilian: Najdorf (53 games, 32.1% win rate); Sicilian (25 games, 52.0% win rate); Sicilian: Moscow Variation (11 games, 36.4% win rate). See the table above for the top ten Black openings across 197 games.
What is Rosa Ratsma's FIDE rating?
Rosa Ratsma is currently rated 2,212 in classical chess and 2,241 in blitz. Peak classical rating: 2,306 (Sep 2021).
How many games has Rosa Ratsma played?
Our database contains 386 games by Rosa Ratsma, covering Jul 2010 to Jul 2026. Overall record: 159 wins, 85 draws, 142 losses (41.2% win rate).
How do I prepare against Rosa Ratsma?
386 games by Rosa Ratsma 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.