Prepare against Joao Antonio Bertolu Mariot Vaz
Brazil · World #25,643 classical · FIDE ID 22702717
When preparing against Joao Antonio Bertolu Mariot Vaz, expect 1.e4 in 89% of White games. Against 1.e4 the reply is 1...e5 (54% of games); against 1.d4, 1...Nf6 (100%).
Our database contains 212 games by Joao Antonio Bertolu Mariot Vaz, covering Apr 2016 to Aug 2026. Below you'll find Joao Antonio Bertolu Mariot Vaz's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Joao Antonio Bertolu Mariot 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 | 2,014 | 2,027 | Oct 2025 |
| Rapid | 1,937 | 1,937 | Aug 2026 |
| Blitz | 2,012 | 2,012 | Aug 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 212 | 85 | 30 | 97 | 40.1% |
| As White | 107 | 50 | 14 | 43 | 46.7% |
| As Black | 105 | 35 | 16 | 54 | 33.3% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Joao Antonio Bertolu Mariot Vaz's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Joao Antonio Bertolu Mariot Vaz's side.
First moves as White (107 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 95 | 88.8% | 53.2% |
| c4 | 12 | 11.2% | 54.2% |
Main lines as White
- 1.e4 — 89% of White games, 53.2% score
- …c5 (48% of these games) — Vaz usually continues Nf3 (45.7% score)
- …e5 (29% of these games) — Vaz usually continues Nf3 (62.5% score)
- …e6 (7% of these games) — Vaz usually continues d4 (75.0% score)
- 1.c4 — 11% of White games, 54.2% score
- …Nf6 (42% of these games) — Vaz usually continues Nc3 (50.0% score)
- …c5 (33% of these games) — Vaz usually continues Nc3 (50.0% score)
- …c6 (8% of these games) — Vaz usually continues Nf3 (50.0% score)
As Black against 1.e4 (59 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 32 | 54.2% | 62.5% |
| c5 | 26 | 44.1% | 32.7% |
| d6 | 1 | 1.7% | 0.0% |
As Black against 1.d4 (22 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 22 | 100.0% | 36.4% |
Joao Antonio Bertolu Mariot Vaz's chess games
All 212 games by Joao Antonio Bertolu Mariot Vaz in the Chess.ceo database (Apr 2016 - 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: 85 wins, 30 draws, 97 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B91 | Sicilian: Najdorf | 13 | 9/0/4 | 69.2% |
| B30 | Sicilian: Rossolimo | 11 | 5/1/5 | 45.5% |
| B43 | Sicilian | 9 | 1/2/6 | 11.1% |
| C45 | Scotch Game | 9 | 4/2/3 | 44.4% |
| C77 | Ruy Lopez: Morphy Defense | 8 | 6/0/2 | 75.0% |
| C42 | Petrov's Defense | 5 | 3/1/1 | 60.0% |
| B37 | Sicilian: Hyperaccelerated Dragon | 4 | 2/0/2 | 50.0% |
| A15 | English Opening | 4 | 2/0/2 | 50.0% |
| B07 | Pirc Defense | 4 | 1/1/2 | 25.0% |
| B76 | Sicilian: Dragon | 4 | 0/3/1 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B80 | Sicilian: Scheveningen | 11 | 4/0/7 | 36.4% |
| E11 | Bogo-Indian Defense | 8 | 1/2/5 | 12.5% |
| C55 | Italian Game | 8 | 6/1/1 | 75.0% |
| B20 | Sicilian | 8 | 1/2/5 | 12.5% |
| C41 | Philidor | 7 | 3/3/1 | 42.9% |
| A36 | English Opening: Symmetrical | 6 | 0/1/5 | 0.0% |
| A05 | Réti Opening | 5 | 1/2/2 | 20.0% |
| A61 | Benoni Defense | 5 | 2/2/1 | 40.0% |
| B76 | Sicilian: Dragon | 4 | 1/0/3 | 25.0% |
| C24 | Bishop's Opening | 3 | 1/0/2 | 33.3% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jan 2026 | Rogerio Paulo Muller Fernandes | 2,241 | 3rd 3-0 Thursday | C00 |
| Apr 2026 | Gustavo Warmling Kayser | 2,191 | Curitiba Chess Open 2026 | C77 |
| Sep 2021 | Lucas Fonseca Piccoli | 2,191 | ch-Pan American Hybrid U18 31st | A19 |
| Jan 2026 | Alejandro Bauza | 2,188 | Brazil Chess - Floripa | A05 |
| Jan 2022 | Federico Torres | 2,170 | 8th Florianopolis Open | C41 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| 9th Florianopolis Open | 2023 | 14 | 7 | 1,825 |
| 7th Florianopolis Open | 2021 | 10 | 4.5 | 1,743 |
| Brazil Chess - Floripa | 2026 | 10 | 6 | 2,130 |
| 5th Florianopolis Open | 2019 | 9 | 4 | 1,646 |
| 8th Florianopolis Winter Open | 2024 | 9 | 6 | 2,126 |
| 11th Floripa Open | 2025 | 9 | 6 | 1,996 |
| ch-Pan American U2000 | 2024 | 9 | 7 | 2,114 |
| 3rd Florianopolis Open | 2017 | 9 | 3 | 1,529 |
Interactive opening tree from all 212 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Joao Antonio Bertolu Mariot Vaz's chess games?
212 games by Joao Antonio Bertolu Mariot Vaz, from Apr 2016 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 Joao Antonio Bertolu Mariot Vaz has played.
What does Joao Antonio Bertolu Mariot Vaz play on the first move as White?
Across 107 games with White in our database, Joao Antonio Bertolu Mariot Vaz opens with 1.e4 (89% of games), 1.c4 (11% of games). Against 1.e4 as Black, Joao Antonio Bertolu Mariot Vaz answers 1...e5 (54% of games), 1...c5 (44% of games), 1...d6 (2% of games). Against 1.d4: 1...Nf6 (100% of games).
What openings does Joao Antonio Bertolu Mariot Vaz play as White?
As White, Joao Antonio Bertolu Mariot Vaz's most-played openings in our database are: Sicilian: Najdorf (13 games, 69.2% win rate); Sicilian: Rossolimo (11 games, 45.5% win rate); Sicilian (9 games, 11.1% win rate). The full breakdown of 107 games with White is in the table above.
What openings does Joao Antonio Bertolu Mariot Vaz play as Black?
As Black, Joao Antonio Bertolu Mariot Vaz most often plays: Sicilian: Scheveningen (11 games, 36.4% win rate); Bogo-Indian Defense (8 games, 12.5% win rate); Italian Game (8 games, 75.0% win rate). See the table above for the top ten Black openings across 105 games.
What is Joao Antonio Bertolu Mariot Vaz's FIDE rating?
Joao Antonio Bertolu Mariot Vaz is currently rated 2,014 in classical chess, 1,937 in rapid and 2,012 in blitz. Peak classical rating: 2,027 (Oct 2025).
How many games has Joao Antonio Bertolu Mariot Vaz played?
Our database contains 212 games by Joao Antonio Bertolu Mariot Vaz, covering Apr 2016 to Aug 2026. Overall record: 85 wins, 30 draws, 97 losses (40.1% win rate).
How do I prepare against Joao Antonio Bertolu Mariot Vaz?
212 games by Joao Antonio Bertolu Mariot 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.