Prepare against Ronja Jacobasch
DEU · World #50,634 classical · FIDE ID 34604340
Our database contains 74 games by Ronja Jacobasch, covering Dec 2020 to Jul 2026. Below you'll find Ronja Jacobasch's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Ronja Jacobasch 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 | 1,891 | 1,898 | Sep 2025 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 74 | 21 | 27 | 26 | 28.4% |
| As White | 34 | 13 | 11 | 10 | 38.2% |
| As Black | 40 | 8 | 16 | 16 | 20.0% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Ronja Jacobasch's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Ronja Jacobasch's side.
First moves as White (34 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf3 | 24 | 70.6% | 54.2% |
| g3 | 4 | 11.8% | 62.5% |
| c4 | 3 | 8.8% | 66.7% |
| e4 | 2 | 5.9% | 25.0% |
| d4 | 1 | 2.9% | 50.0% |
Main lines as White
- 1.Nf3 — 71% of White games, 54.2% score
- …d5 (54% of these games) — Jacobasch usually continues g3 (58.3% score)
- …Nf6 (25% of these games) — Jacobasch usually continues g3 (40.0% score)
- …c5 (13% of these games) — Jacobasch usually continues g3 (66.7% score)
- 1.g3 — 12% of White games, 62.5% score
- …c5 (50% of these games) — Jacobasch usually continues Bg2 (100.0% score)
- …e6 (25% of these games) — Jacobasch usually continues Bg2 (50.0% score)
- …Nf6 (25% of these games) — Jacobasch usually continues Bg2 (0.0% score)
As Black against 1.e4 (26 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d6 | 16 | 61.5% | 40.6% |
| d5 | 6 | 23.1% | 33.3% |
| g6 | 2 | 7.7% | 100.0% |
| e6 | 1 | 3.8% | 0.0% |
| c5 | 1 | 3.8% | 50.0% |
As Black against 1.d4 (12 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 11 | 91.7% | 40.9% |
| g6 | 1 | 8.3% | 0.0% |
Ronja Jacobasch's chess games
All 74 games by Ronja Jacobasch in the Chess.ceo database (Dec 2020 - 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: 21 wins, 27 draws, 26 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A04 | Réti Opening | 20 | 9/6/5 | 45.0% |
| A00 | Hungarian Opening | 4 | 2/1/1 | 50.0% |
| A08 | King's Indian Attack | 2 | 0/2/0 | 0.0% |
| A11 | English Opening: Slav Setup | 2 | 0/0/2 | 0.0% |
| E65 | Réti Opening: Symmetrical Defense | 1 | 0/0/1 | 0.0% |
| E63 | English Opening | 1 | 1/0/0 | 100.0% |
| B45 | Sicilian: Four Knights | 1 | 0/0/1 | 0.0% |
| A54 | English Opening: Reverse Sicilian | 1 | 1/0/0 | 100.0% |
| E67 | King's Indian Defense: Fianchetto Variation | 1 | 0/1/0 | 0.0% |
| A07 | Réti Opening: Keres Variation | 1 | 0/1/0 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B07 | Pirc Defense | 15 | 3/6/6 | 20.0% |
| B01 | Scandinavian Defense: Main Line | 6 | 1/2/3 | 16.7% |
| D02 | King's Indian Defense: Fianchetto Variation | 3 | 1/2/0 | 33.3% |
| B06 | Modern Defense | 3 | 2/0/1 | 66.7% |
| E81 | King's Indian: Sämisch | 3 | 0/2/1 | 0.0% |
| A48 | London System | 2 | 0/0/2 | 0.0% |
| B08 | King's Indian Defense | 2 | 1/0/1 | 50.0% |
| B50 | Sicilian | 1 | 0/1/0 | 0.0% |
| C01 | French: Exchange Variation | 1 | 0/0/1 | 0.0% |
| E73 | King's Indian Defense: Averbakh System | 1 | 0/1/0 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Aug 2025 | Jose Luis Marin Aso | 1,979 | 52nd Sparkassen Open B | E63 |
| May 2024 | Madiha Fock | 1,779 | ch-GER U16 Girls | A04 |
| May 2024 | Sarah Fetahovic | 1,758 | ch-GER U16 Girls | B07 |
| Jun 2021 | Rosalie Werner | 1,751 | chT-GER U14 Girls | A05 |
| Dec 2022 | Daria Pikki | 1,649 | chT-GER U16 Girls | C00 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| ch-GER U16 Girls | 2024 | 27 | 11.5 | 1,566 |
| chT-GER U16 Girls | 2023 | 13 | 5.5 | 1,561 |
| ch-GER U14 Girls | 2022 | 9 | 4.5 | 1,498 |
| chT-GER U14 Girls | 2021 | 7 | 3.5 | 1,505 |
| ch-GER U12 Girls | 2020 | 7 | 4 | 1,467 |
| ch-GER w | 2023 | 7 | 4.5 | 1,586 |
| 52nd Sparkassen Open B | 2025 | 3 | 1 | 1,824 |
| 35th Kiel Open | 2023 | 1 | 0 | 1,709 |
Interactive opening tree from all 74 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Ronja Jacobasch's chess games?
74 games by Ronja Jacobasch, from Dec 2020 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 Ronja Jacobasch has played.
What does Ronja Jacobasch play on the first move as White?
Across 34 games with White in our database, Ronja Jacobasch opens with 1.Nf3 (71% of games), 1.g3 (12% of games), 1.c4 (9% of games). Against 1.e4 as Black, Ronja Jacobasch answers 1...d6 (62% of games), 1...d5 (23% of games), 1...g6 (8% of games). Against 1.d4: 1...Nf6 (92% of games), 1...g6 (8% of games).
What openings does Ronja Jacobasch play as White?
As White, Ronja Jacobasch's most-played openings in our database are: Réti Opening (20 games, 45.0% win rate); Hungarian Opening (4 games, 50.0% win rate); King's Indian Attack (2 games, 0.0% win rate). The full breakdown of 34 games with White is in the table above.
What openings does Ronja Jacobasch play as Black?
As Black, Ronja Jacobasch most often plays: Pirc Defense (15 games, 20.0% win rate); Scandinavian Defense: Main Line (6 games, 16.7% win rate); King's Indian Defense: Fianchetto Variation (3 games, 33.3% win rate). See the table above for the top ten Black openings across 40 games.
What is Ronja Jacobasch's FIDE rating?
Ronja Jacobasch is currently rated 1,891 in classical chess. Peak classical rating: 1,898 (Sep 2025).
How many games has Ronja Jacobasch played?
Our database contains 74 games by Ronja Jacobasch, covering Dec 2020 to Jul 2026. Overall record: 21 wins, 27 draws, 26 losses (28.4% win rate).
How do I prepare against Ronja Jacobasch?
74 games by Ronja Jacobasch 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.