Prepare against Casper Deij
NLD · World #122,382 classical · FIDE ID 1085816
When preparing against Casper Deij, expect 1.e4 in 100% of White games. Against 1.e4 the reply is 1...e5 (100% of games); against 1.d4, 1...d5 (100%).
Our database contains 33 games by Casper Deij, covering Mar 2023 to Nov 2026. Below you'll find Casper Deij's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Casper Deij 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 | 1,670 | 1,691 | Aug 2026 |
| Rapid | 1,700 | 1,731 | Jun 2024 |
| Blitz | 1,701 | 1,703 | Sep 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 33 | 6 | 9 | 18 | 18.2% |
| As White | 18 | 4 | 6 | 8 | 22.2% |
| As Black | 15 | 2 | 3 | 10 | 13.3% |
FIDE rated record
From FIDE's official rated-game ledger (2021-2026): 349 rated games against 310 different opponents, across 59 events in 3 countries. These counts cover FIDE-rated play only, so they differ from the database totals above.
By time control
| Format | Games | W | D | L | Win rate | Avg opp | Perf | Unbeaten |
|---|---|---|---|---|---|---|---|---|
| Classical | 65 | 24 | 21 | 20 | 36.9% | 1,515 | 1,524 | 5 |
| Rapid | 123 | 50 | 17 | 56 | 40.7% | 1,777 | 1,682 | 5 |
| Blitz | 161 | 60 | 12 | 89 | 37.3% | 1,609 | 1,492 | 5 |
Against the field
| Opposition | Games | W | D | L | Win rate |
|---|---|---|---|---|---|
| Against higher-rated | 174 | 31 | 28 | 115 | 17.8% |
| Against lower-rated | 62 | 44 | 5 | 13 | 71.0% |
Year by year
| Year | Games | W | D | L | Avg opp | Perf |
|---|---|---|---|---|---|---|
| 2026 | 50 | 21 | 10 | 19 | 1,780 | 1,693 |
| 2025 | 107 | 41 | 14 | 52 | 1,743 | 1,656 |
| 2024 | 84 | 26 | 18 | 40 | 1,759 | 1,637 |
| 2023 | 82 | 34 | 5 | 43 | 1,569 | 1,462 |
| 2022 | 24 | 10 | 3 | 11 | 1,128 | 1,112 |
| 2021 | 2 | 2 | 0 | 0 | 801 | 1,201 |
Where Casper Deij has played
Netherlands (51) · Belgium (5) · Germany (3)
Move-by-move preparation stats
Straight from the preparation tree built over all of Casper Deij's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Casper Deij's side.
First moves as White (18 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 18 | 100.0% | 38.9% |
Main lines as White
- 1.e4 — 100% of White games, 38.9% score
- …e5 (56% of these games) — Deij usually continues Nf3 (38.9% score)
- …e6 (11% of these games) — Deij usually continues d4 (75.0% score)
- …c6 (11% of these games) — Deij usually continues d4 (50.0% score)
As Black against 1.e4 (8 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 8 | 100.0% | 31.3% |
As Black against 1.d4 (4 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 4 | 100.0% | 12.5% |
Casper Deij's chess games
All 33 games by Casper Deij in the Chess.ceo database (Mar 2023 - Nov 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: 6 wins, 9 draws, 18 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C77 | Ruy Lopez: Morphy Defense | 3 | 0/1/2 | 0.0% |
| C01 | French: Exchange Variation | 2 | 1/1/0 | 50.0% |
| C60 | Ruy Lopez | 2 | 1/1/0 | 50.0% |
| C50 | Four Knights Game: Italian Variation | 2 | 1/0/1 | 50.0% |
| B13 | Caro-Kann: Exchange Variation | 2 | 0/2/0 | 0.0% |
| B08 | Pirc Defense | 1 | 1/0/0 | 100.0% |
| C44 | Scotch Game | 1 | 0/1/0 | 0.0% |
| B73 | Sicilian: Dragon | 1 | 0/0/1 | 0.0% |
| C49 | Four Knights Game: Spanish Variation | 1 | 0/0/1 | 0.0% |
| C50 | Italian Game | 1 | 0/0/1 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C54 | Italian Game: Classical Variation | 3 | 0/1/2 | 0.0% |
| C45 | Scotch Game | 3 | 0/0/3 | 0.0% |
| D11 | Slav Defense | 2 | 0/1/1 | 0.0% |
| A08 | King's Indian Attack | 1 | 0/0/1 | 0.0% |
| B10 | English Opening: Slav Setup | 1 | 0/0/1 | 0.0% |
| D25 | Queen's Gambit Accepted | 1 | 0/0/1 | 0.0% |
| D02 | Queen's Pawn Game | 1 | 0/0/1 | 0.0% |
| D00 | London System | 1 | 0/1/0 | 0.0% |
| C47 | Four Knights Game: Scotch Variation | 1 | 1/0/0 | 100.0% |
| C48 | Four Knights Game: Spanish Variation | 1 | 1/0/0 | 100.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Aug 2026 | Ediz Oruc | 1,839 | Open Nederlandse Jeugdkampioenschappen 2026 | ABC | B08 |
| Aug 2026 | Sarah Barbier | 1,447 | Open Nederlandse Jeugdkampioenschappen 2026 | ABC | C47 |
| Aug 2019 | Frederik Hesse | 858 | NED Open B | C50 |
| Aug 2019 | David Formanoy | 343 | NED Open B | C48 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Open Nederlandse Jeugdkampioenschappen 2026 | ABC | 2026 | 9 | 5.5 | 1,766 |
| Kwalificatie NJSK 2026 Best | B | 2026 | 6 | 2 | 1,591 |
| Helmond Rapid Open | 2024 | 6 | 0 | 1,656 |
| NED Open B | 2019 | 5 | 2 | 658 |
| Kwalificatie NJSK 2026 Hoogkerk | B | 2026 | 4 | 1 | 1,648 |
| NED Open A | 2019 | 1 | 0 | 599 |
| Open NK Rapid | 2025 | 1 | 0 | 1,872 |
| Open Dutch Rapid Championship 2026 | 2026 | 1 | 0 | 1,664 |
Interactive opening tree from all 33 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Casper Deij's chess games?
33 games by Casper Deij, from Mar 2023 to Nov 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 Casper Deij has played.
What does Casper Deij play on the first move as White?
Across 18 games with White in our database, Casper Deij opens with 1.e4 (100% of games). Against 1.e4 as Black, Casper Deij answers 1...e5 (100% of games). Against 1.d4: 1...d5 (100% of games).
What openings does Casper Deij play as White?
As White, Casper Deij's most-played openings in our database are: Ruy Lopez: Morphy Defense (3 games, 0.0% win rate); French: Exchange Variation (2 games, 50.0% win rate); Ruy Lopez (2 games, 50.0% win rate). The full breakdown of 18 games with White is in the table above.
What openings does Casper Deij play as Black?
As Black, Casper Deij most often plays: Italian Game: Classical Variation (3 games, 0.0% win rate); Scotch Game (3 games, 0.0% win rate); Slav Defense (2 games, 0.0% win rate). See the table above for the top ten Black openings across 15 games.
What is Casper Deij's FIDE rating?
Casper Deij is currently rated 1,670 in classical chess, 1,700 in rapid and 1,701 in blitz. Peak classical rating: 1,691 (Aug 2026).
How many games has Casper Deij played?
Our database contains 33 games by Casper Deij, covering Mar 2023 to Nov 2026. Overall record: 6 wins, 9 draws, 18 losses (18.2% win rate).
How do I prepare against Casper Deij?
33 games by Casper Deij 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.