Prepare against Osvaldo Jose Vaz
Brazil · World #103,937 classical · FIDE ID 2165023
When preparing against Osvaldo Jose Vaz, expect 1.e4 in 100% of White games. Against 1.e4 the reply is 1...e6 (78% of games); against 1.d4, 1...Nf6 (74%).
Our database contains 130 games by Osvaldo Jose Vaz, covering Jul 2019 to Jul 2026. Below you'll find Osvaldo Jose Vaz's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Osvaldo Jose Vaz 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 | 1,718 | 1,774 | Jul 2024 |
| Rapid | 1,779 | 1,779 | Jul 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 130 | 46 | 21 | 63 | 35.4% |
| As White | 66 | 27 | 7 | 32 | 40.9% |
| As Black | 64 | 19 | 14 | 31 | 29.7% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Osvaldo Jose Vaz's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Osvaldo Jose Vaz's side.
First moves as White (66 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 66 | 100.0% | 46.2% |
Main lines as White
- 1.e4 — 100% of White games, 46.2% score
- …c5 (47% of these games) — Vaz usually continues Nf3 (23.5% score)
- …e5 (26% of these games) — Vaz usually continues Bc4 (83.3% score)
- …d6 (8% of these games) — Vaz usually continues d4 (40.0% score)
As Black against 1.e4 (36 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e6 | 28 | 77.8% | 37.5% |
| c5 | 8 | 22.2% | 31.3% |
As Black against 1.d4 (19 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 14 | 73.7% | 25.0% |
| d5 | 3 | 15.8% | 83.3% |
| e6 | 2 | 10.5% | 50.0% |
Osvaldo Jose Vaz's chess games
All 130 games by Osvaldo Jose Vaz in the Chess.ceo database (Jul 2019 - 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: 46 wins, 21 draws, 63 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B30 | Sicilian | 14 | 3/2/9 | 21.4% |
| B22 | Sicilian: Alapin | 12 | 5/1/6 | 41.7% |
| C27 | Vienna Game | 7 | 6/0/1 | 85.7% |
| C24 | Bishop's Opening | 5 | 4/0/1 | 80.0% |
| C07 | French: Tarrasch Variation | 4 | 0/1/3 | 0.0% |
| B07 | Pirc Defense | 3 | 0/2/1 | 0.0% |
| B12 | Caro-Kann: Advance Variation | 2 | 1/0/1 | 50.0% |
| B22 | Sicilian: Smith-Morra Gambit | 2 | 1/0/1 | 50.0% |
| C68 | Ruy Lopez: Exchange | 2 | 1/1/0 | 50.0% |
| B07 | Pirc Defense: Lion System | 2 | 1/0/1 | 50.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C14 | French: Classical Variation | 9 | 2/1/6 | 22.2% |
| A08 | King's Indian Attack | 6 | 1/2/3 | 16.7% |
| C01 | French: Exchange Variation | 5 | 3/2/0 | 60.0% |
| A16 | English Opening | 4 | 3/0/1 | 75.0% |
| D85 | Grünfeld Defense | 4 | 0/0/4 | 0.0% |
| C06 | French Defense | 4 | 1/1/2 | 25.0% |
| C02 | French: Advance Variation | 3 | 0/1/2 | 0.0% |
| A46 | Indian Defense | 3 | 2/0/1 | 66.7% |
| B80 | Sicilian: Najdorf | 3 | 0/0/3 | 0.0% |
| C06 | French: Tarrasch Variation | 2 | 0/1/1 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Sep 1991 | Wagner Peixoto Guimaraes | 2,260 | Sao Paulo Latin America Cup Open | B21 |
| Aug 2024 | Pimenta,Jeronimo Marques | 2,047 | 4th Niteroi Open | B12 |
| Sep 2022 | Willy Petrenko | 1,876 | 2nd Niteroi Open | C24 |
| Sep 2022 | Thiago Lopes Verbic Dos Santos | 1,865 | 2nd Niteroi Open | B22 |
| Oct 2021 | Sergio Mobaier | 1,864 | Sao Jose dos Campos Open | A48 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Sao Jose dos Campos Open | 2022 | 20 | 10 | 1,713 |
| Sao Paulo Latin America Cup | 1992 | 10 | 4.5 | 2,275 |
| 10th Florianopolis Open | 2024 | 10 | 5 | 1,694 |
| 2nd Niteroi Open | 2022 | 9 | 5 | 1,949 |
| 11th Floripa Open | 2025 | 8 | 4.5 | 1,793 |
| Sao Paulo Latin America Cup Open | 1991 | 7 | 3 | 2,249 |
| Caxambu Open | 2020 | 6 | 1 | 1,361 |
| 8th Florianopolis Open | 2022 | 6 | 2.5 | 1,791 |
Interactive opening tree from all 130 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Osvaldo Jose Vaz's chess games?
130 games by Osvaldo Jose Vaz, from Jul 2019 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 Osvaldo Jose Vaz has played.
What does Osvaldo Jose Vaz play on the first move as White?
Across 66 games with White in our database, Osvaldo Jose Vaz opens with 1.e4 (100% of games). Against 1.e4 as Black, Osvaldo Jose Vaz answers 1...e6 (78% of games), 1...c5 (22% of games). Against 1.d4: 1...Nf6 (74% of games), 1...d5 (16% of games), 1...e6 (11% of games).
What openings does Osvaldo Jose Vaz play as White?
As White, Osvaldo Jose Vaz's most-played openings in our database are: Sicilian (14 games, 21.4% win rate); Sicilian: Alapin (12 games, 41.7% win rate); Vienna Game (7 games, 85.7% win rate). The full breakdown of 66 games with White is in the table above.
What openings does Osvaldo Jose Vaz play as Black?
As Black, Osvaldo Jose Vaz most often plays: French: Classical Variation (9 games, 22.2% win rate); King's Indian Attack (6 games, 16.7% win rate); French: Exchange Variation (5 games, 60.0% win rate). See the table above for the top ten Black openings across 64 games.
What is Osvaldo Jose Vaz's FIDE rating?
Osvaldo Jose Vaz is currently rated 1,718 in classical chess, 1,779 in rapid. Peak classical rating: 1,774 (Jul 2024).
How many games has Osvaldo Jose Vaz played?
Our database contains 130 games by Osvaldo Jose Vaz, covering Jul 2019 to Jul 2026. Overall record: 46 wins, 21 draws, 63 losses (35.4% win rate).
How do I prepare against Osvaldo Jose Vaz?
130 games by Osvaldo Jose Vaz 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.