Prepare against Machiel De Heer
NLD · World #6,435 classical · FIDE ID 1005863
Our database contains 174 games by Machiel De Heer, covering Apr 2003 to Jul 2026. Below you'll find Machiel De Heer's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Machiel De Heer 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 | 2,236 | 2,291 | Apr 2004 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 174 | 78 | 44 | 52 | 44.8% |
| As White | 77 | 37 | 19 | 21 | 48.1% |
| As Black | 97 | 41 | 25 | 31 | 42.3% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Machiel De Heer's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Machiel De Heer's side.
First moves as White (77 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 72 | 93.5% | 59.0% |
| d4 | 3 | 3.9% | 66.7% |
| Nf3 | 1 | 1.3% | 100.0% |
| Nc3 | 1 | 1.3% | 100.0% |
Main lines as White
- 1.e4 — 94% of White games, 59.0% score
- …c5 (50% of these games) — Heer usually continues Nc3 (58.9% score)
- …e6 (13% of these games) — Heer usually continues d4 (37.5% score)
- …d5 (13% of these games) — Heer usually continues exd5 (40.0% score)
- 1.d4 — 4% of White games, 66.7% score
- …f5 (33% of these games) — Heer usually continues Nf3 (100.0% score)
- …d6 (33% of these games) — Heer usually continues e4 (50.0% score)
- …Nf6 (33% of these games)
As Black against 1.e4 (56 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 49 | 87.5% | 63.3% |
| d5 | 3 | 5.4% | 16.7% |
| d6 | 2 | 3.6% | 100.0% |
| c6 | 1 | 1.8% | 50.0% |
| e6 | 1 | 1.8% | 0.0% |
As Black against 1.d4 (26 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d6 | 16 | 61.5% | 56.3% |
| Nf6 | 8 | 30.8% | 37.5% |
| g6 | 1 | 3.8% | 0.0% |
| f5 | 1 | 3.8% | 0.0% |
Machiel De Heer's chess games
All 174 games by Machiel De Heer 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: 78 wins, 44 draws, 52 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B23 | Sicilian: Closed | 28 | 14/5/9 | 50.0% |
| B70 | Sicilian | 5 | 1/2/2 | 20.0% |
| B10 | Caro-Kann | 5 | 4/0/1 | 80.0% |
| C55 | Italian Game | 4 | 3/0/1 | 75.0% |
| C18 | French: Winawer Variation | 4 | 1/1/2 | 25.0% |
| B01 | Scandinavian Defense: Modern Variation | 3 | 0/1/2 | 0.0% |
| C11 | French: Classical Variation | 3 | 0/1/2 | 0.0% |
| A00 | Scandinavian Defense | 3 | 2/1/0 | 66.7% |
| B06 | Pirc Defense | 3 | 1/1/1 | 33.3% |
| B01 | Scandinavian Defense: Main Line | 2 | 1/1/0 | 50.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C41 | Philidor | 37 | 17/11/9 | 45.9% |
| A41 | Rat Defense | 12 | 5/0/7 | 41.7% |
| A25 | English Opening: Reverse Sicilian | 5 | 3/0/2 | 60.0% |
| C36 | King's Gambit | 5 | 3/1/1 | 60.0% |
| A20 | Queen's Pawn Game | 5 | 3/2/0 | 60.0% |
| A46 | Indian Defense | 4 | 1/1/2 | 25.0% |
| B07 | Pirc Defense | 4 | 3/0/1 | 75.0% |
| C26 | Vienna Game | 3 | 0/3/0 | 0.0% |
| A04 | Réti Opening | 2 | 1/1/0 | 50.0% |
| C41 | Petrov's Defense | 2 | 1/1/0 | 50.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jan 1997 | Mikhail Rychagov | 2,525 | Dieren Open | C41 |
| Jan 1997 | Jeroen Vanheste | 2,410 | chT-NED f 3/4 | A41 |
| Nov 1996 | Kick Langeweg | 2,375 | ch-NED52 sf | A41 |
| Jun 2006 | Thomas Willemze | 2,350 | ch-Leiden SB | C18 |
| Jan 1993 | Marc Jonker | 2,325 | ch-NED U20 | B06 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Dieren Open | 1999 | 34 | 18 | 2,320 |
| ch-NED U20 | 1995 | 27 | 20 | 2,429 |
| ch-Leiden SB | 2006 | 24 | 15.5 | 2,101 |
| ch-NED52 sf | 1996 | 9 | 4.5 | 2,343 |
| Lost Boys Open | 2002 | 9 | 4 | 2,328 |
| chT-NED 9596 | 1995 | 9 | 7 | 2,379 |
| ch-NED Open | 1992 | 8 | 3.5 | 2,315 |
| ch-NED U26 | 1996 | 7 | 3.5 | 2,274 |
Interactive opening tree from all 174 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Machiel De Heer's chess games?
174 games by Machiel De Heer, 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 Machiel De Heer has played.
What does Machiel De Heer play on the first move as White?
Across 77 games with White in our database, Machiel De Heer opens with 1.e4 (94% of games), 1.d4 (4% of games), 1.Nf3 (1% of games). Against 1.e4 as Black, Machiel De Heer answers 1...e5 (88% of games), 1...d5 (5% of games), 1...d6 (4% of games). Against 1.d4: 1...d6 (62% of games), 1...Nf6 (31% of games), 1...g6 (4% of games).
What openings does Machiel De Heer play as White?
As White, Machiel De Heer's most-played openings in our database are: Sicilian: Closed (28 games, 50.0% win rate); Sicilian (5 games, 20.0% win rate); Caro-Kann (5 games, 80.0% win rate). The full breakdown of 77 games with White is in the table above.
What openings does Machiel De Heer play as Black?
As Black, Machiel De Heer most often plays: Philidor (37 games, 45.9% win rate); Rat Defense (12 games, 41.7% win rate); English Opening: Reverse Sicilian (5 games, 60.0% win rate). See the table above for the top ten Black openings across 97 games.
What is Machiel De Heer's FIDE rating?
Machiel De Heer is currently rated 2,236 in classical chess. Peak classical rating: 2,291 (Apr 2004).
How many games has Machiel De Heer played?
Our database contains 174 games by Machiel De Heer, covering Apr 2003 to Jul 2026. Overall record: 78 wins, 44 draws, 52 losses (44.8% win rate).
How do I prepare against Machiel De Heer?
174 games by Machiel De Heer 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.