Prepare against William Alfaro
FM · NIC · World #18,151 classical · FIDE ID 6100457
Our database contains 64 games by William Alfaro, covering Jul 2003 to Aug 2026. Below you'll find William Alfaro's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout William Alfaro 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 | 2,074 | 2,231 | Jan 2012 |
| Rapid | 2,068 | 2,204 | Aug 2015 |
| Blitz | 2,074 | 2,171 | Dec 2012 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 64 | 28 | 12 | 24 | 43.8% |
| As White | 33 | 14 | 6 | 13 | 42.4% |
| As Black | 31 | 14 | 6 | 11 | 45.2% |
Move-by-move preparation stats
Straight from the preparation tree built over all of William Alfaro's games — the same tree the interactive prep board lets you walk to any depth. Scores are from William Alfaro's side.
First moves as White (33 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 23 | 69.7% | 45.7% |
| Nf3 | 5 | 15.2% | 50.0% |
| e4 | 5 | 15.2% | 80.0% |
Main lines as White
- 1.d4 — 70% of White games, 45.7% score
- …Nf6 (52% of these games) — Alfaro usually continues c4 (68.8% score)
- …d5 (39% of these games) — Alfaro usually continues c4 (35.7% score)
- …e6 (4% of these games) — Alfaro usually continues c4 (50.0% score)
- 1.Nf3 — 15% of White games, 50.0% score
- …Nf6 (40% of these games) — Alfaro usually continues g3 (100.0% score)
- …d5 (40% of these games) — Alfaro usually continues c4 (50.0% score)
- …c5 (20% of these games) — Alfaro usually continues a3 (0.0% score)
As Black against 1.e4 (14 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 7 | 50.0% | 64.3% |
| e6 | 2 | 14.3% | 75.0% |
| c6 | 2 | 14.3% | 100.0% |
| d6 | 1 | 7.1% | 50.0% |
As Black against 1.d4 (11 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 9 | 81.8% | 44.4% |
| d5 | 1 | 9.1% | 100.0% |
| g6 | 1 | 9.1% | 100.0% |
William Alfaro's chess games
All 64 games by William Alfaro in the Chess.ceo database (Jul 2003 - Aug 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: 28 wins, 12 draws, 24 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D37 | Indian Defense | 6 | 4/1/1 | 66.7% |
| D30 | Queen's Gambit Declined | 4 | 1/0/3 | 25.0% |
| D44 | Slav Defense | 3 | 1/1/1 | 33.3% |
| D30 | Queen's Indian Defense | 3 | 0/0/3 | 0.0% |
| A49 | King's Indian Defense: Fianchetto Variation | 2 | 1/1/0 | 50.0% |
| A14 | English Opening: Neo-Catalan | 1 | 0/1/0 | 0.0% |
| C02 | French: Advance Variation | 1 | 0/0/1 | 0.0% |
| C00 | French Defense | 1 | 1/0/0 | 100.0% |
| C01 | French: Exchange Variation | 1 | 1/0/0 | 100.0% |
| A90 | Horwitz Defense | 1 | 0/1/0 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A58 | Benoni Defense | 7 | 2/1/4 | 28.6% |
| A04 | Réti Opening | 3 | 1/0/2 | 33.3% |
| B00 | King's Pawn Game | 2 | 0/0/2 | 0.0% |
| A30 | English Opening: Symmetrical | 2 | 1/0/1 | 50.0% |
| C00 | French Defense | 2 | 1/1/0 | 50.0% |
| B22 | Sicilian: Alapin | 2 | 1/1/0 | 50.0% |
| B35 | Sicilian: Hyperaccelerated Dragon | 1 | 0/0/1 | 0.0% |
| B76 | Sicilian: Dragon | 1 | 1/0/0 | 100.0% |
| A48 | King's Indian Defense | 1 | 1/0/0 | 100.0% |
| B12 | Caro-Kann: Advance Variation | 1 | 1/0/0 | 100.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jan 2025 | Eelke De Boer | 2,428 | Titled Tue Early | B76 |
| Nov 2024 | Ilan Schnaider | 2,392 | Titled Tue Early | B38 |
| May 2025 | Jose Francisco R P Neves Veiga | 2,389 | Titled Tue Early | C00 |
| Mar 2025 | Nikolay Khnykin | 2,309 | Titled Tue Early | B12 |
| May 2025 | Vladimir Shahinyan | 2,202 | Titled Tue Early | C00 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Titled Tuesday | 2025 | 37 | 19.5 | 2,179 |
| 19th American Continental | 2026 | 11 | 5.5 | 2,054 |
| XIX American Continental Chess Championship 2026 | Rapid | 2026 | 9 | 4.5 | 2,045 |
| Carlos Torre Mem Blitz | 2025 | 4 | 2 | 1,896 |
| Campeonato Nacional e Internacional Aguascalientes 2026 | Expertos | 2026 | 3 | 2.5 | 2,190 |
Interactive opening tree from all 64 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find William Alfaro's chess games?
64 games by William Alfaro, from Jul 2003 to Aug 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 William Alfaro has played.
What does William Alfaro play on the first move as White?
Across 33 games with White in our database, William Alfaro opens with 1.d4 (70% of games), 1.Nf3 (15% of games), 1.e4 (15% of games). Against 1.e4 as Black, William Alfaro answers 1...c5 (50% of games), 1...e6 (14% of games), 1...c6 (14% of games). Against 1.d4: 1...Nf6 (82% of games), 1...d5 (9% of games), 1...g6 (9% of games).
What openings does William Alfaro play as White?
As White, William Alfaro's most-played openings in our database are: Indian Defense (6 games, 66.7% win rate); Queen's Gambit Declined (4 games, 25.0% win rate); Slav Defense (3 games, 33.3% win rate). The full breakdown of 33 games with White is in the table above.
What openings does William Alfaro play as Black?
As Black, William Alfaro most often plays: Benoni Defense (7 games, 28.6% win rate); Réti Opening (3 games, 33.3% win rate); King's Pawn Game (2 games, 0.0% win rate). See the table above for the top ten Black openings across 31 games.
What is William Alfaro's FIDE rating?
William Alfaro is currently rated 2,074 in classical chess, 2,068 in rapid and 2,074 in blitz. Peak classical rating: 2,231 (Jan 2012).
How many games has William Alfaro played?
Our database contains 64 games by William Alfaro, covering Jul 2003 to Aug 2026. Overall record: 28 wins, 12 draws, 24 losses (43.8% win rate).
How do I prepare against William Alfaro?
64 games by William Alfaro 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.