Prepare against Erik Ronka
FM · Finland · World #4,397 classical · FIDE ID 505080
Our database contains 2,759 games by Erik Ronka, covering Jan 2009 to Jul 2026. Below you'll find Erik Ronka's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Erik Ronka 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 | 2,291 | 2,355 | Mar 2022 |
| Rapid | 2,192 | 2,211 | Aug 2024 |
| Blitz | 2,290 | 2,290 | Jul 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 2,759 | 1,124 | 381 | 1,254 | 40.7% |
| As White | 1,371 | 599 | 184 | 588 | 43.7% |
| As Black | 1,388 | 525 | 197 | 666 | 37.8% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Erik Ronka's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Erik Ronka's side.
First moves as White (1,371 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 808 | 58.9% | 46.1% |
| d4 | 492 | 35.9% | 57.2% |
| Nf3 | 34 | 2.5% | 54.4% |
| c4 | 9 | 0.7% | 44.4% |
| a3 | 7 | 0.5% | 85.7% |
| Nc3 | 4 | 0.3% | 50.0% |
Main lines as White
- 1.e4 — 59% of White games, 46.1% score
- …c5 (43% of these games) — Ronka usually continues Nf3 (48.1% score)
- …e5 (20% of these games) — Ronka usually continues Nf3 (42.9% score)
- …e6 (12% of these games) — Ronka usually continues d4 (38.2% score)
- 1.d4 — 36% of White games, 57.2% score
- …Nf6 (57% of these games) — Ronka usually continues c4 (58.7% score)
- …d5 (27% of these games) — Ronka usually continues c4 (58.2% score)
- …e6 (4% of these games) — Ronka usually continues c4 (45.0% score)
As Black against 1.e4 (626 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 237 | 37.9% | 42.8% |
| c6 | 183 | 29.2% | 45.9% |
| e5 | 86 | 13.7% | 57.6% |
| g6 | 36 | 5.8% | 51.4% |
| e6 | 34 | 5.4% | 50.0% |
| d5 | 17 | 2.7% | 52.9% |
As Black against 1.d4 (463 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 282 | 60.9% | 39.4% |
| Nf6 | 134 | 28.9% | 44.0% |
| e6 | 23 | 5.0% | 52.2% |
| g6 | 7 | 1.5% | 42.9% |
| f5 | 5 | 1.1% | 20.0% |
| a6 | 4 | 0.9% | 62.5% |
Erik Ronka's chess games
All 2,759 games by Erik Ronka in the Chess.ceo database (Jan 2009 - 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: 1,124 wins, 381 draws, 1,254 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B20 | Sicilian | 155 | 72/16/67 | 46.5% |
| D36 | Indian Defense | 81 | 35/15/31 | 43.2% |
| B90 | Sicilian: Najdorf | 65 | 30/6/29 | 46.2% |
| E24 | Nimzo-Indian: Sämisch Variation | 46 | 29/4/13 | 63.0% |
| D02 | Queen's Pawn Game | 39 | 15/6/18 | 38.5% |
| B06 | Modern Defense | 37 | 12/10/15 | 32.4% |
| D10 | Slav Defense | 37 | 15/11/11 | 40.5% |
| A65 | Benoni Defense | 36 | 20/3/13 | 55.6% |
| C88 | Ruy Lopez: Closed | 30 | 16/4/10 | 53.3% |
| B11 | Caro-Kann: Two Knights Variation | 28 | 9/3/16 | 32.1% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D45 | Slav Defense | 123 | 38/16/69 | 30.9% |
| B40 | Sicilian | 92 | 38/6/48 | 41.3% |
| A07 | Réti Opening | 60 | 23/8/29 | 38.3% |
| B13 | London System | 54 | 19/6/29 | 35.2% |
| B81 | Sicilian: Scheveningen | 53 | 16/6/31 | 30.2% |
| B12 | Caro-Kann: Advance Variation | 49 | 18/5/26 | 36.7% |
| B06 | Modern Defense | 49 | 24/1/24 | 49.0% |
| B19 | Caro-Kann: Classical | 45 | 17/7/21 | 37.8% |
| D30 | Queen's Gambit Declined | 38 | 17/3/18 | 44.7% |
| D35 | Indian Defense | 38 | 8/9/21 | 21.1% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Apr 2021 | Evgeny Tomashevsky | 2,706 | Titled Tue | A14 |
| Dec 2022 | Aleksandar Indjic | 2,636 | Titled Tue Early | B24 |
| Jun 2022 | Velimir Ivic | 2,628 | Titled Tue Early | B33 |
| May 2021 | Nodirbek Abdusattorov | 2,627 | Titled Tue | B12 |
| Apr 2023 | Rasmus Svane | 2,621 | Titled Tue Early | D31 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Titled Tuesday | 2025 | 1,939 | 886.5 | 2,240 |
| ch-FIN | 2025 | 46 | 19 | 2,266 |
| 1st 3-0 Thursday | 2025 | 44 | 16.5 | 2,173 |
| Kuopio We KSY Open | 2017 | 34 | 23 | 2,245 |
| Chess.com Bullet Open 2 | 2020 | 18 | 8 | 2,287 |
| ch-FIN Open | 2014 | 18 | 11 | 2,144 |
| Raahe We RaahLi | 2016 | 18 | 12.5 | 2,318 |
| Kajaani We KaSY Open | 2013 | 15 | 10.5 | 2,251 |
Frequent opponents
Head-to-head records: Tommi Luukkonen (21 games) · Mika Karttunen (12 games) · Frans Valli (10 games) · Evan S Rosenberg (10 games)
Interactive opening tree from all 2,759 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Erik Ronka's chess games?
2,759 games by Erik Ronka, from Jan 2009 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 Erik Ronka has played.
What does Erik Ronka play on the first move as White?
Across 1,371 games with White in our database, Erik Ronka opens with 1.e4 (59% of games), 1.d4 (36% of games), 1.Nf3 (2% of games). Against 1.e4 as Black, Erik Ronka answers 1...c5 (38% of games), 1...c6 (29% of games), 1...e5 (14% of games). Against 1.d4: 1...d5 (61% of games), 1...Nf6 (29% of games), 1...e6 (5% of games).
What openings does Erik Ronka play as White?
As White, Erik Ronka's most-played openings in our database are: Sicilian (155 games, 46.5% win rate); Indian Defense (81 games, 43.2% win rate); Sicilian: Najdorf (65 games, 46.2% win rate). The full breakdown of 1,371 games with White is in the table above.
What openings does Erik Ronka play as Black?
As Black, Erik Ronka most often plays: Slav Defense (123 games, 30.9% win rate); Sicilian (92 games, 41.3% win rate); Réti Opening (60 games, 38.3% win rate). See the table above for the top ten Black openings across 1,388 games.
What is Erik Ronka's FIDE rating?
Erik Ronka is currently rated 2,291 in classical chess, 2,192 in rapid and 2,290 in blitz. Peak classical rating: 2,355 (Mar 2022).
How many games has Erik Ronka played?
Our database contains 2,759 games by Erik Ronka, covering Jan 2009 to Jul 2026. Overall record: 1,124 wins, 381 draws, 1,254 losses (40.7% win rate).
How do I prepare against Erik Ronka?
2,759 games by Erik Ronka 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.