Prepare against Jukka Harju
Finland · World #19,729 classical · FIDE ID 505773
Our database contains 85 games by Jukka Harju, covering May 2012 to Jul 2026. Below you'll find Jukka Harju's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Jukka Harju 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 | 2,059 | 2,107 | Oct 2012 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 85 | 30 | 20 | 35 | 35.3% |
| As White | 43 | 20 | 5 | 18 | 46.5% |
| As Black | 42 | 10 | 15 | 17 | 23.8% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Jukka Harju's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Jukka Harju's side.
First moves as White (43 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| f4 | 41 | 95.3% | 54.9% |
| Nf3 | 2 | 4.7% | 0.0% |
Main lines as White
- 1.f4 — 95% of White games, 54.9% score
- …Nf6 (32% of these games) — Harju usually continues Nf3 (57.7% score)
- …d5 (29% of these games) — Harju usually continues Nf3 (68.2% score)
- …g6 (17% of these games) — Harju usually continues Nf3 (50.0% score)
- 1.Nf3 — 5% of White games, 0.0% score
- …Nf6 (100% of these games) — Harju usually continues b3 (0.0% score)
As Black against 1.e4 (18 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e6 | 17 | 94.4% | 52.9% |
| Nc6 | 1 | 5.6% | 0.0% |
As Black against 1.d4 (10 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e6 | 10 | 100.0% | 45.0% |
Jukka Harju's chess games
All 85 games by Jukka Harju in the Chess.ceo database (May 2012 - 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: 30 wins, 20 draws, 35 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A03 | Bird's opening | 41 | 20/5/16 | 48.8% |
| A06 | Réti Opening | 2 | 0/0/2 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A84 | Horwitz Defense | 9 | 2/5/2 | 22.2% |
| A10 | English Opening | 7 | 2/1/4 | 28.6% |
| C16 | French: Winawer Variation | 6 | 2/2/2 | 33.3% |
| C05 | French: Tarrasch Variation | 5 | 0/2/3 | 0.0% |
| C02 | French: Advance Variation | 4 | 2/2/0 | 50.0% |
| A04 | Réti Opening | 3 | 0/2/1 | 0.0% |
| A08 | King's Indian Attack | 2 | 1/0/1 | 50.0% |
| C46 | Three Knights Opening | 1 | 0/0/1 | 0.0% |
| C01 | French: Exchange Variation | 1 | 1/0/0 | 100.0% |
| D05 | Indian Defense | 1 | 0/0/1 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| May 2014 | Timo Vaatainen | 2,231 | FIN Team Cup | A08 |
| Feb 2018 | Risto Nokka | 2,219 | chT1B-FIN 1718 | C01 |
| Nov 2015 | Tapani Viljava | 2,172 | chT1A-FIN 1516 | A45 |
| Nov 2003 | Sauli Pyylampi | 2,091 | chT-FIN 1C 0304 | A85 |
| Feb 2016 | Jussi Koivunen | 2,024 | chT1A-FIN 1516 | A45 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| FIN Team Cup | 2014 | 9 | 6.5 | 2,224 |
| chT1B-FIN 1718 | 2018 | 6 | 2 | 1,898 |
| chT1-FIN West 1213 | 2013 | 6 | 1.5 | 1,972 |
| chT-FIN 1B 1617 | 2017 | 5 | 1 | 2,038 |
| chT1A-FIN 1516 | 2016 | 5 | 2 | 1,983 |
| chT-FIN 1D 0809 | 2008 | 4 | 2.5 | 2,168 |
| chT1C-FIN 0203 | 2002 | 4 | 2.5 | 2,159 |
| chT-FIN1C 0102 | 2002 | 4 | 2 | 2,058 |
Interactive opening tree from all 85 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Jukka Harju's chess games?
85 games by Jukka Harju, from May 2012 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 Jukka Harju has played.
What does Jukka Harju play on the first move as White?
Across 43 games with White in our database, Jukka Harju opens with 1.f4 (95% of games), 1.Nf3 (5% of games). Against 1.e4 as Black, Jukka Harju answers 1...e6 (94% of games), 1...Nc6 (6% of games). Against 1.d4: 1...e6 (100% of games).
What openings does Jukka Harju play as White?
As White, Jukka Harju's most-played openings in our database are: Bird's opening (41 games, 48.8% win rate); Réti Opening (2 games, 0.0% win rate). The full breakdown of 43 games with White is in the table above.
What openings does Jukka Harju play as Black?
As Black, Jukka Harju most often plays: Horwitz Defense (9 games, 22.2% win rate); English Opening (7 games, 28.6% win rate); French: Winawer Variation (6 games, 33.3% win rate). See the table above for the top ten Black openings across 42 games.
What is Jukka Harju's FIDE rating?
Jukka Harju is currently rated 2,059 in classical chess. Peak classical rating: 2,107 (Oct 2012).
How many games has Jukka Harju played?
Our database contains 85 games by Jukka Harju, covering May 2012 to Jul 2026. Overall record: 30 wins, 20 draws, 35 losses (35.3% win rate).
How do I prepare against Jukka Harju?
85 games by Jukka Harju 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.