Prepare against Sander Los
FM · NLD · World #5,077 classical · FIDE ID 1000527
Our database contains 169 games by Sander Los, covering Apr 2003 to Jul 2026. Below you'll find Sander Los's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Sander Los 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 | 2,271 | 2,345 | Jul 2003 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 169 | 63 | 29 | 77 | 37.3% |
| As White | 79 | 34 | 12 | 33 | 43.0% |
| As Black | 90 | 29 | 17 | 44 | 32.2% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Sander Los's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Sander Los's side.
First moves as White (79 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 68 | 86.1% | 47.1% |
| Nf3 | 7 | 8.9% | 85.7% |
| c4 | 4 | 5.1% | 50.0% |
Main lines as White
- 1.e4 — 86% of White games, 47.1% score
- …c5 (35% of these games) — Los usually continues Nf3 (45.8% score)
- …e5 (19% of these games) — Los usually continues Nf3 (30.8% score)
- …e6 (18% of these games) — Los usually continues d3 (66.7% score)
- 1.Nf3 — 9% of White games, 85.7% score
- …Nf6 (43% of these games) — Los usually continues c4 (66.7% score)
- …d5 (43% of these games) — Los usually continues c4 (100.0% score)
- …c5 (14% of these games) — Los usually continues c4 (100.0% score)
As Black against 1.e4 (54 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 43 | 79.6% | 46.5% |
| d6 | 9 | 16.7% | 44.4% |
| g6 | 2 | 3.7% | 0.0% |
As Black against 1.d4 (27 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 21 | 77.8% | 38.1% |
| g6 | 6 | 22.2% | 8.3% |
Sander Los's chess games
All 169 games by Sander Los 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: 63 wins, 29 draws, 77 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B44 | Sicilian | 12 | 5/3/4 | 41.7% |
| B10 | Caro-Kann | 7 | 1/2/4 | 14.3% |
| A08 | King's Indian Attack | 6 | 4/0/2 | 66.7% |
| C00 | French Defense | 5 | 1/2/2 | 20.0% |
| B31 | Sicilian: Rossolimo | 5 | 1/1/3 | 20.0% |
| C90 | Ruy Lopez: Closed | 4 | 2/0/2 | 50.0% |
| B09 | Pirc Defense | 4 | 4/0/0 | 100.0% |
| A13 | English Opening | 3 | 2/0/1 | 66.7% |
| B82 | Sicilian: Najdorf | 3 | 0/1/2 | 0.0% |
| B04 | Alekhine Defense | 3 | 2/0/1 | 66.7% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B76 | Sicilian: Dragon | 21 | 7/5/9 | 33.3% |
| B50 | Sicilian | 14 | 7/2/5 | 50.0% |
| A43 | Benoni Defense | 11 | 2/2/7 | 18.2% |
| B06 | Pirc Defense | 9 | 3/2/4 | 33.3% |
| B06 | Modern Defense | 8 | 0/1/7 | 0.0% |
| E92 | King's Indian Defense: Orthodox Variation | 6 | 2/1/3 | 33.3% |
| B47 | Sicilian: Taimanov | 3 | 1/0/2 | 33.3% |
| A47 | Indian Defense | 3 | 1/2/0 | 33.3% |
| E63 | English Opening | 3 | 2/0/1 | 66.7% |
| B52 | Sicilian: Moscow Variation | 2 | 0/0/2 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jan 1995 | Alexander Huzman | 2,580 | Leeuwarden Open | A43 |
| Jan 1990 | Ilia Smirin | 2,555 | Groningen Open | B80 |
| Jan 1990 | Nigel R Davies | 2,485 | Groningen Open | B35 |
| Jan 1989 | Nenad Ristic | 2,465 | Groningen Open | B30 |
| Jan 1989 | Carsten Hoi | 2,460 | Groningen Open | B09 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Groningen Open | 1993 | 22 | 8.5 | 2,362 |
| Leeuwarden Open | 1995 | 12 | 5 | 2,375 |
| ch-NED46 sf | 1990 | 9 | 5 | 2,393 |
| Amstelveen | 1994 | 9 | 4.5 | 2,380 |
| Sonnevanck-B | 1995 | 9 | 3.5 | 2,282 |
| chT-NED | 1997 | 9 | 3.5 | 2,277 |
| ch-NED 47 sf | 1991 | 9 | 4.5 | 2,392 |
| Dutch League 2024-25 | 2025 | 8 | 3 | 2,212 |
Interactive opening tree from all 169 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Sander Los's chess games?
169 games by Sander Los, 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 Sander Los has played.
What does Sander Los play on the first move as White?
Across 79 games with White in our database, Sander Los opens with 1.e4 (86% of games), 1.Nf3 (9% of games), 1.c4 (5% of games). Against 1.e4 as Black, Sander Los answers 1...c5 (80% of games), 1...d6 (17% of games), 1...g6 (4% of games). Against 1.d4: 1...Nf6 (78% of games), 1...g6 (22% of games).
What openings does Sander Los play as White?
As White, Sander Los's most-played openings in our database are: Sicilian (12 games, 41.7% win rate); Caro-Kann (7 games, 14.3% win rate); King's Indian Attack (6 games, 66.7% win rate). The full breakdown of 79 games with White is in the table above.
What openings does Sander Los play as Black?
As Black, Sander Los most often plays: Sicilian: Dragon (21 games, 33.3% win rate); Sicilian (14 games, 50.0% win rate); Benoni Defense (11 games, 18.2% win rate). See the table above for the top ten Black openings across 90 games.
What is Sander Los's FIDE rating?
Sander Los is currently rated 2,271 in classical chess. Peak classical rating: 2,345 (Jul 2003).
How many games has Sander Los played?
Our database contains 169 games by Sander Los, covering Apr 2003 to Jul 2026. Overall record: 63 wins, 29 draws, 77 losses (37.3% win rate).
How do I prepare against Sander Los?
169 games by Sander Los 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.