Prepare against Sebastian Sigvaldsen
Norway · World #68,055 classical · FIDE ID 1569660
When preparing against Sebastian Sigvaldsen, expect 1.d4 in 80% of White games. Against 1.e4 the reply is 1...c5 (43% of games); against 1.d4, 1...Nf6 (100%).
Our database contains 30 games by Sebastian Sigvaldsen, covering Nov 2022 to Oct 2026. Below you'll find Sebastian Sigvaldsen's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Sebastian Sigvaldsen 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 | 1,828 | 1,828 | Oct 2026 |
| Rapid | 1,757 | 1,828 | Jun 2026 |
| Blitz | 1,906 | 1,906 | Oct 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 30 | 8 | 13 | 9 | 26.7% |
| As White | 15 | 6 | 7 | 2 | 40.0% |
| As Black | 15 | 2 | 6 | 7 | 13.3% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Sebastian Sigvaldsen's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Sebastian Sigvaldsen's side.
First moves as White (15 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 12 | 80.0% | 58.3% |
| e4 | 3 | 20.0% | 83.3% |
Main lines as White
- 1.d4 — 80% of White games, 58.3% score
- …Nf6 (67% of these games) — Sigvaldsen usually continues Nf3 (50.0% score)
- …d5 (33% of these games) — Sigvaldsen usually continues Nf3 (83.3% score)
- 1.e4 — 20% of White games, 83.3% score
- …c6 (67% of these games) — Sigvaldsen usually continues d4 (75.0% score)
- …c5 (33% of these games) — Sigvaldsen usually continues Nf3 (100.0% score)
As Black against 1.e4 (7 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 3 | 42.9% | 66.7% |
| e6 | 3 | 42.9% | 16.7% |
| e5 | 1 | 14.3% | 0.0% |
As Black against 1.d4 (5 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 5 | 100.0% | 30.0% |
Sebastian Sigvaldsen's chess games
All 30 games by Sebastian Sigvaldsen in the Chess.ceo database (Nov 2022 - Oct 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: 8 wins, 13 draws, 9 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D37 | Indian Defense | 7 | 2/4/1 | 28.6% |
| D02 | London System | 2 | 1/1/0 | 50.0% |
| D19 | Slav Defense | 2 | 1/1/0 | 50.0% |
| B12 | Caro-Kann: Exchange Variation | 1 | 0/1/0 | 0.0% |
| D31 | Queen's Gambit Declined | 1 | 0/0/1 | 0.0% |
| B44 | Sicilian: Four Knights | 1 | 1/0/0 | 100.0% |
| B15 | Caro-Kann: Main Line | 1 | 1/0/0 | 100.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D35 | Indian Defense | 5 | 0/3/2 | 0.0% |
| D78 | English Opening: Slav Setup | 1 | 0/0/1 | 0.0% |
| A36 | English Opening: Symmetrical | 1 | 0/1/0 | 0.0% |
| C02 | French: Advance Variation | 1 | 0/0/1 | 0.0% |
| C14 | French: Classical Variation | 1 | 0/0/1 | 0.0% |
| C00 | French Defense | 1 | 0/1/0 | 0.0% |
| B32 | Sicilian | 1 | 1/0/0 | 100.0% |
| B22 | Sicilian: Alapin | 1 | 1/0/0 | 100.0% |
| B27 | Sicilian: Hyperaccelerated Dragon | 1 | 0/0/1 | 0.0% |
| A17 | English Opening | 1 | 0/1/0 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jul 2026 | Sigmund Lunde | 1,835 | Landsturneringen 2026 | Klasse 1 | A50 |
| Jan 2026 | August Minh Brattgjerd | 1,829 | Det åpne NM i hurtigsjakk | D46 |
| Jul 2026 | Amanda Mai Irgens Eiding | 1,822 | Landsturneringen 2026 | Klasse 1 | D02 |
| Oct 2026 | Asgeir Bardal | 1,763 | Fagernes International Autumn 2026 | Open | B15 |
| Apr 2026 | Catherine Jorgensen | 1,609 | Fagernes Chess International | Open | E60 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Landsturneringen 2026 | Klasse 1 | 2026 | 9 | 4 | 1,810 |
| Fagernes Chess International | Open | 2026 | 9 | 4.5 | 1,767 |
| Fagernes International Autumn 2026 | Open | 2026 | 7 | 4 | 1,741 |
| Det åpne NM i hurtigsjakk | 2026 | 5 | 2 | 1,850 |
Interactive opening tree from all 30 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Sebastian Sigvaldsen's chess games?
30 games by Sebastian Sigvaldsen, from Nov 2022 to Oct 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 Sebastian Sigvaldsen has played.
What does Sebastian Sigvaldsen play on the first move as White?
Across 15 games with White in our database, Sebastian Sigvaldsen opens with 1.d4 (80% of games), 1.e4 (20% of games). Against 1.e4 as Black, Sebastian Sigvaldsen answers 1...c5 (43% of games), 1...e6 (43% of games), 1...e5 (14% of games). Against 1.d4: 1...Nf6 (100% of games).
What openings does Sebastian Sigvaldsen play as White?
As White, Sebastian Sigvaldsen's most-played openings in our database are: Indian Defense (7 games, 28.6% win rate); London System (2 games, 50.0% win rate); Slav Defense (2 games, 50.0% win rate). The full breakdown of 15 games with White is in the table above.
What openings does Sebastian Sigvaldsen play as Black?
As Black, Sebastian Sigvaldsen most often plays: Indian Defense (5 games, 0.0% win rate); English Opening: Slav Setup (1 games, 0.0% win rate); English Opening: Symmetrical (1 games, 0.0% win rate). See the table above for the top ten Black openings across 15 games.
What is Sebastian Sigvaldsen's FIDE rating?
Sebastian Sigvaldsen is currently rated 1,828 in classical chess, 1,757 in rapid and 1,906 in blitz. Peak classical rating: 1,828 (Oct 2026).
How many games has Sebastian Sigvaldsen played?
Our database contains 30 games by Sebastian Sigvaldsen, covering Nov 2022 to Oct 2026. Overall record: 8 wins, 13 draws, 9 losses (26.7% win rate).
How do I prepare against Sebastian Sigvaldsen?
30 games by Sebastian Sigvaldsen 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.