Prepare against Mats Harren
Sweden · World #30,915 classical · FIDE ID 1703943
When preparing against Mats Harren, expect 1.e4 in 100% of White games. Against 1.e4 the reply is 1...d6 (68% of games); against 1.d4, 1...Nf6 (92%).
Our database contains 77 games by Mats Harren, covering Apr 2003 to Jul 2026. Below you'll find Mats Harren's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Mats Harren 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 | 1,980 | 2,139 | May 2019 |
| Rapid | 2,031 | 2,095 | Feb 2020 |
| Blitz | 1,985 | 2,105 | Jun 2016 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 77 | 17 | 26 | 34 | 22.1% |
| As White | 33 | 7 | 14 | 12 | 21.2% |
| As Black | 44 | 10 | 12 | 22 | 22.7% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Mats Harren's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Mats Harren's side.
First moves as White (33 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 33 | 100.0% | 42.4% |
Main lines as White
- 1.e4 — 100% of White games, 42.4% score
- …c5 (48% of these games) — Harren usually continues d4 (31.3% score)
- …e6 (18% of these games) — Harren usually continues d4 (50.0% score)
- …e5 (15% of these games) — Harren usually continues Nf3 (50.0% score)
As Black against 1.e4 (22 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d6 | 15 | 68.2% | 46.7% |
| e5 | 6 | 27.3% | 16.7% |
| c5 | 1 | 4.5% | 50.0% |
As Black against 1.d4 (13 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 12 | 92.3% | 41.7% |
| d6 | 1 | 7.7% | 100.0% |
Mats Harren's chess games
All 77 games by Mats Harren in the Chess.ceo database (Apr 2003 - 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: 17 wins, 26 draws, 34 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B21 | Sicilian: Smith-Morra Gambit | 8 | 0/5/3 | 0.0% |
| B22 | Sicilian: Alapin | 7 | 1/2/4 | 14.3% |
| C05 | French: Tarrasch Variation | 3 | 1/1/1 | 33.3% |
| B06 | Modern Defense | 2 | 1/0/1 | 50.0% |
| B20 | French Defense | 2 | 2/0/0 | 100.0% |
| C56 | Italian Game | 2 | 1/1/0 | 50.0% |
| A08 | King's Indian Attack | 1 | 0/1/0 | 0.0% |
| B12 | Caro-Kann: Advance Variation | 1 | 1/0/0 | 100.0% |
| C77 | Ruy Lopez: Morphy Defense | 1 | 0/0/1 | 0.0% |
| B01 | Scandinavian Defense: Main Line | 1 | 0/0/1 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B07 | Pirc Defense: Lion System | 13 | 4/3/6 | 30.8% |
| A61 | Benoni Defense | 8 | 2/2/4 | 25.0% |
| A46 | Indian Defense | 3 | 1/0/2 | 33.3% |
| B07 | Pirc Defense | 2 | 1/1/0 | 50.0% |
| A13 | English Opening | 2 | 0/0/2 | 0.0% |
| E17 | Queen's Indian Defense | 2 | 0/1/1 | 0.0% |
| C84 | Ruy Lopez: Closed | 2 | 0/1/1 | 0.0% |
| E66 | Modern Defense | 1 | 0/1/0 | 0.0% |
| A01 | Nimzovich-Larsen attack | 1 | 0/0/1 | 0.0% |
| A22 | English Opening: Reverse Sicilian | 1 | 0/0/1 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Dec 2016 | Martin Jogstad | 2,282 | Malmo Open | C05 |
| Sep 2019 | Bich Ngoc Pham | 2,244 | Gothenburg Kvibergspelen 09 | B06 |
| May 2022 | Daniel Johnson | 2,208 | Deltalift Open | A65 |
| Nov 2007 | Hakan Akvist | 2,116 | chT2-SWE 0708 | C00 |
| Jan 2009 | Sten Bernhardsson | 2,096 | chT2-SWE 0809 | A61 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Deltalift Open | 2022 | 19 | 5.5 | 2,103 |
| chT2-SWE 0809 | 2009 | 9 | 5 | 2,129 |
| chT2-SWE 0708 | 2008 | 8 | 4 | 2,075 |
| Vaxjo Open | 2020 | 7 | 2 | 2,028 |
| Karlskrona Open | 1998 | 7 | 5 | 2,341 |
| Karlstad Open | 2019 | 6 | 2 | 2,083 |
| chC-SWE Open | 2010 | 3 | 1 | 1,991 |
| Malmo Open | 2017 | 3 | 1.5 | 2,294 |
Interactive opening tree from all 77 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Mats Harren's chess games?
77 games by Mats Harren, from Apr 2003 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 Mats Harren has played.
What does Mats Harren play on the first move as White?
Across 33 games with White in our database, Mats Harren opens with 1.e4 (100% of games). Against 1.e4 as Black, Mats Harren answers 1...d6 (68% of games), 1...e5 (27% of games), 1...c5 (5% of games). Against 1.d4: 1...Nf6 (92% of games), 1...d6 (8% of games).
What openings does Mats Harren play as White?
As White, Mats Harren's most-played openings in our database are: Sicilian: Smith-Morra Gambit (8 games, 0.0% win rate); Sicilian: Alapin (7 games, 14.3% win rate); French: Tarrasch Variation (3 games, 33.3% win rate). The full breakdown of 33 games with White is in the table above.
What openings does Mats Harren play as Black?
As Black, Mats Harren most often plays: Pirc Defense: Lion System (13 games, 30.8% win rate); Benoni Defense (8 games, 25.0% win rate); Indian Defense (3 games, 33.3% win rate). See the table above for the top ten Black openings across 44 games.
What is Mats Harren's FIDE rating?
Mats Harren is currently rated 1,980 in classical chess, 2,031 in rapid and 1,985 in blitz. Peak classical rating: 2,139 (May 2019).
How many games has Mats Harren played?
Our database contains 77 games by Mats Harren, covering Apr 2003 to Jul 2026. Overall record: 17 wins, 26 draws, 34 losses (22.1% win rate).
How do I prepare against Mats Harren?
77 games by Mats Harren 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.