Prepare against Sigurdur Freyr Jonatansson
Iceland · World #117,637 classical · FIDE ID 2303116
When preparing against Sigurdur Freyr Jonatansson, expect 1.e4 in 100% of White games. Against 1.e4 the reply is 1...c5 (100% of games); against 1.d4, 1...Nf6 (63%).
Our database contains 80 games by Sigurdur Freyr Jonatansson, covering Jan 2014 to Jul 2026. Below you'll find Sigurdur Freyr Jonatansson's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Sigurdur Freyr Jonatansson 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 | 1,680 | 1,731 | Mar 2024 |
| Rapid | 1,608 | 1,714 | Dec 2015 |
| Blitz | 1,692 | 1,707 | Mar 2024 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 80 | 26 | 13 | 41 | 32.5% |
| As White | 40 | 15 | 5 | 20 | 37.5% |
| As Black | 40 | 11 | 8 | 21 | 27.5% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Sigurdur Freyr Jonatansson's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Sigurdur Freyr Jonatansson's side.
First moves as White (40 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 40 | 100.0% | 43.8% |
Main lines as White
- 1.e4 — 100% of White games, 43.8% score
- …c5 (40% of these games) — Jonatansson usually continues Nf3 (31.8% score)
- …e5 (35% of these games) — Jonatansson usually continues Nf3 (50.0% score)
- …e6 (15% of these games) — Jonatansson usually continues d4 (50.0% score)
As Black against 1.e4 (16 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 16 | 100.0% | 56.3% |
As Black against 1.d4 (19 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 12 | 63.2% | 37.5% |
| d5 | 5 | 26.3% | 10.0% |
| f5 | 2 | 10.5% | 50.0% |
Sigurdur Freyr Jonatansson's chess games
All 80 games by Sigurdur Freyr Jonatansson in the Chess.ceo database (Jan 2014 - 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: 26 wins, 13 draws, 41 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C77 | Ruy Lopez: Morphy Defense | 9 | 4/1/4 | 44.4% |
| D00 | French: Classical Variation | 5 | 2/0/3 | 40.0% |
| B51 | Sicilian: Moscow Variation | 5 | 2/0/3 | 40.0% |
| B12 | Caro-Kann: Fantasy Variation | 3 | 0/1/2 | 0.0% |
| B22 | Sicilian | 3 | 1/0/2 | 33.3% |
| B22 | Sicilian: Alapin | 3 | 1/1/1 | 33.3% |
| B27 | Sicilian: Hyperaccelerated Dragon | 2 | 0/1/1 | 0.0% |
| B23 | Sicilian: Closed | 2 | 1/0/1 | 50.0% |
| C63 | Ruy Lopez: Schliemann | 2 | 0/1/1 | 0.0% |
| C64 | Ruy Lopez: Classical | 2 | 2/0/0 | 100.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B43 | Sicilian | 12 | 6/2/4 | 50.0% |
| E72 | English Opening | 4 | 0/0/4 | 0.0% |
| A48 | Indian Defense | 3 | 0/1/2 | 0.0% |
| A41 | London System | 3 | 0/1/2 | 0.0% |
| E61 | King's Indian Defense | 3 | 0/3/0 | 0.0% |
| D03 | Torre Attack | 2 | 0/0/2 | 0.0% |
| B23 | Sicilian: Closed | 2 | 1/0/1 | 50.0% |
| A84 | Dutch Defense | 2 | 1/0/1 | 50.0% |
| E07 | Catalan | 1 | 0/0/1 | 0.0% |
| A45 | Trompowsky Attack | 1 | 1/0/0 | 100.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Nov 2016 | Birkir Karl Sigurdsson | 1,900 | Gardabaer Skakthing Open | C77 |
| Apr 2015 | Kristjan Halldorsson | 1,863 | Reykjavik Skakmot Open | A45 |
| May 2015 | Birgir Rafn Thrainsson | 1,720 | Reykjavik Skakmot Open | C78 |
| Nov 2019 | Thorsteinn Magnusson | 1,568 | Reykjavik Taflfelag Open | D00 |
| Feb 2020 | Hordur Jonasson | 1,551 | Reykjavik Congress | C87 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Reykjavik Congress | 2020 | 16 | 7.5 | 1,607 |
| Reykjavik Open | 2024 | 15 | 4.5 | 1,540 |
| Reykjavik Open 2026 | 2026 | 9 | 3.5 | 1,722 |
| ch-ISL Online Rapid | 2020 | 7 | 3 | 1,771 |
| Gardabaer Skakthing Open | 2016 | 7 | 2.5 | 1,575 |
| Reykjavik Skakmot Open | 2015 | 7 | 3 | 1,706 |
| Reykjavik Taflfelag Open | 2019 | 5 | 2.5 | 1,561 |
| Reykjavik Faxaven Open | 2018 | 5 | 2 | 1,769 |
Interactive opening tree from all 80 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Sigurdur Freyr Jonatansson's chess games?
80 games by Sigurdur Freyr Jonatansson, from Jan 2014 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 Sigurdur Freyr Jonatansson has played.
What does Sigurdur Freyr Jonatansson play on the first move as White?
Across 40 games with White in our database, Sigurdur Freyr Jonatansson opens with 1.e4 (100% of games). Against 1.e4 as Black, Sigurdur Freyr Jonatansson answers 1...c5 (100% of games). Against 1.d4: 1...Nf6 (63% of games), 1...d5 (26% of games), 1...f5 (11% of games).
What openings does Sigurdur Freyr Jonatansson play as White?
As White, Sigurdur Freyr Jonatansson's most-played openings in our database are: Ruy Lopez: Morphy Defense (9 games, 44.4% win rate); French: Classical Variation (5 games, 40.0% win rate); Sicilian: Moscow Variation (5 games, 40.0% win rate). The full breakdown of 40 games with White is in the table above.
What openings does Sigurdur Freyr Jonatansson play as Black?
As Black, Sigurdur Freyr Jonatansson most often plays: Sicilian (12 games, 50.0% win rate); English Opening (4 games, 0.0% win rate); Indian Defense (3 games, 0.0% win rate). See the table above for the top ten Black openings across 40 games.
What is Sigurdur Freyr Jonatansson's FIDE rating?
Sigurdur Freyr Jonatansson is currently rated 1,680 in classical chess, 1,608 in rapid and 1,692 in blitz. Peak classical rating: 1,731 (Mar 2024).
How many games has Sigurdur Freyr Jonatansson played?
Our database contains 80 games by Sigurdur Freyr Jonatansson, covering Jan 2014 to Jul 2026. Overall record: 26 wins, 13 draws, 41 losses (32.5% win rate).
How do I prepare against Sigurdur Freyr Jonatansson?
80 games by Sigurdur Freyr Jonatansson 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.