Prepare against Derk Dekker
NLD · World #29,752 classical · FIDE ID 1039679
When preparing against Derk Dekker, expect 1.e4 in 47% of White games. Against 1.e4 the reply is 1...e5 (100% of games); against 1.d4, 1...f5 (56%).
Our database contains 42 games by Derk Dekker, covering Dec 2015 to Jul 2026. Below you'll find Derk Dekker's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Derk Dekker 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 | 1,987 | 1,987 | Jul 2026 |
| Rapid | 1,918 | 1,939 | Nov 2024 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 42 | 13 | 9 | 20 | 31.0% |
| As White | 17 | 7 | 3 | 7 | 41.2% |
| As Black | 25 | 6 | 6 | 13 | 24.0% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Derk Dekker's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Derk Dekker's side.
First moves as White (17 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 8 | 47.1% | 43.8% |
| d4 | 8 | 47.1% | 50.0% |
| f4 | 1 | 5.9% | 100.0% |
Main lines as White
- 1.e4 — 47% of White games, 43.8% score
- …e5 (25% of these games) — Dekker usually continues Nf3 (100.0% score)
- …g6 (13% of these games) — Dekker usually continues d4 (100.0% score)
- …c5 (13% of these games) — Dekker usually continues Nf3 (0.0% score)
- 1.d4 — 47% of White games, 50.0% score
- …Nf6 (63% of these games) — Dekker usually continues c4 (50.0% score)
- …d5 (25% of these games) — Dekker usually continues c4 (75.0% score)
- …e6 (13% of these games) — Dekker usually continues e4 (100.0% score)
As Black against 1.e4 (12 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 12 | 100.0% | 41.7% |
As Black against 1.d4 (9 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| f5 | 5 | 55.6% | 30.0% |
| d5 | 4 | 44.4% | 25.0% |
Derk Dekker's chess games
All 42 games by Derk Dekker in the Chess.ceo database (Dec 2015 - 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: 13 wins, 9 draws, 20 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D15 | Slav Defense | 2 | 1/1/0 | 50.0% |
| A57 | Benoni Defense | 2 | 0/1/1 | 0.0% |
| B16 | Caro-Kann: Main Line | 1 | 0/0/1 | 0.0% |
| C66 | Four Knights Game: Spanish Variation | 1 | 1/0/0 | 100.0% |
| C01 | French: Tarrasch Variation | 1 | 1/0/0 | 100.0% |
| C53 | Italian Game: Classical Variation | 1 | 1/0/0 | 100.0% |
| A08 | King's Indian Attack | 1 | 0/0/1 | 0.0% |
| A45 | London System | 1 | 0/0/1 | 0.0% |
| B06 | Modern Defense | 1 | 1/0/0 | 100.0% |
| B07 | Pirc Defense | 1 | 0/0/1 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A80 | Dutch Defense | 7 | 1/1/5 | 14.3% |
| C54 | Italian Game | 2 | 1/0/1 | 50.0% |
| C65 | Ruy Lopez: Berlin Defense | 2 | 0/1/1 | 0.0% |
| A29 | English Opening: Reverse Sicilian | 2 | 1/1/0 | 50.0% |
| C48 | Four Knights Game: Spanish Variation | 2 | 1/1/0 | 50.0% |
| C42 | Petrov's Defense | 1 | 0/0/1 | 0.0% |
| D26 | Queen's Pawn Game | 1 | 0/0/1 | 0.0% |
| C99 | Ruy Lopez: Closed | 1 | 0/0/1 | 0.0% |
| C68 | Ruy Lopez: Exchange | 1 | 0/1/0 | 0.0% |
| D08 | Albin Countergambit | 1 | 1/0/0 | 100.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Feb 2021 | Monika Stojkovska | 2,106 | World Corporate East F | C01 |
| Feb 2021 | Tamas Benyo | 2,059 | World Corporate East F | A80 |
| Jun 2022 | Stephan Heer | 2,047 | ch-EU Corporate | B06 |
| Nov 2018 | Peter Baranowsky | 1,867 | 18th chT-GER Betriebe | C54 |
| Nov 2018 | Paulo Santos | 1,823 | 18th chT-GER Betriebe | C48 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Reykjavik Open | 2016 | 7 | 2.5 | 1,686 |
| 18th chT-GER Betriebe | 2018 | 7 | 4.5 | 1,983 |
| 15th chT-GER Betriebe | 2015 | 7 | 3.5 | 1,964 |
| World Corporate East F | 2021 | 6 | 4 | 2,125 |
| chT-GER Betriebe 14th | 2014 | 6 | 2 | 2,032 |
| ch-EU Corporate | 2022 | 4 | 1 | 1,921 |
| Groningen Combinatie Open | 2017 | 3 | 0 | 1,878 |
| Bruges Masters Open | 2023 | 1 | 0 | 2,137 |
Interactive opening tree from all 42 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Derk Dekker's chess games?
42 games by Derk Dekker, from Dec 2015 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 Derk Dekker has played.
What does Derk Dekker play on the first move as White?
Across 17 games with White in our database, Derk Dekker opens with 1.e4 (47% of games), 1.d4 (47% of games), 1.f4 (6% of games). Against 1.e4 as Black, Derk Dekker answers 1...e5 (100% of games). Against 1.d4: 1...f5 (56% of games), 1...d5 (44% of games).
What openings does Derk Dekker play as White?
As White, Derk Dekker's most-played openings in our database are: Slav Defense (2 games, 50.0% win rate); Benoni Defense (2 games, 0.0% win rate); Caro-Kann: Main Line (1 games, 0.0% win rate). The full breakdown of 17 games with White is in the table above.
What openings does Derk Dekker play as Black?
As Black, Derk Dekker most often plays: Dutch Defense (7 games, 14.3% win rate); Italian Game (2 games, 50.0% win rate); Ruy Lopez: Berlin Defense (2 games, 0.0% win rate). See the table above for the top ten Black openings across 25 games.
What is Derk Dekker's FIDE rating?
Derk Dekker is currently rated 1,987 in classical chess, 1,918 in rapid. Peak classical rating: 1,987 (Jul 2026).
How many games has Derk Dekker played?
Our database contains 42 games by Derk Dekker, covering Dec 2015 to Jul 2026. Overall record: 13 wins, 9 draws, 20 losses (31.0% win rate).
How do I prepare against Derk Dekker?
42 games by Derk Dekker 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.