Errerias, Carlos
Current rating: 1563
Record: 21-18-2
| Regional Championships Sao Paulo 2023 Cycle 3 (pioneer) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 22 | Matsuno Da Frota, Andre Francisco (1652) | Lost 1-2 | -161506 |
| 2pioneer | 70 | Brotto, Felipe (1386) | Won 2-1 | +161522 |
| 3pioneer | 33 | Neto, Sidney (1543) | Won 2-1 | +181540 |
| 4pioneer | 69 | Fehr, Gabriel (1637) | Won 2-1 | +201560 |
| 5pioneer | 16 | dos Santos Pinto, Paulo Henrique (1739) | Won 2-1 | +211581 |
| 6pioneer | 4 | William, Frank (1653) | Lost 1-2 | -161565 |
| 7pioneer | 14 | Rosa, Douglas (1534) | Lost 0-2 | -191546 |
| 8pioneer | 21 | Lucas, Fernando (1483) | Won 2-1 | +171563 |
| top | average opponent: 1578record: 5-3 | new rating: 1563 | ||
| Regional Championships Sao Paulo 2023 (ONE standard) | starting rating: 1558 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 38 | Bossaneli Araujo, William (1716) | Lost 0-2 | -151543 |
| 2standard | 52 | Martins, Eli (1359) | Won 2-0 | +151558 |
| 3standard | 42 | Toledo Obregon, Alfredo Enrique (1647) | Lost 1-2 | -161542 |
| 4standard | 39 | Lujan de Bem, Lucas (1439) | Lost 1-2 | -201522 |
| top | average opponent: 1540record: 1-3 | new rating: 1522 | ||
| Regional Championships Sao Paulo 2022 (pioneer) | starting rating: 1544 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 18 | Rodrigues, Arthur (1500) | Won 2-0 | +171561 |
| 2pioneer | 14 | Barboza, Ronaldo (1562) | Lost 1-2 | -181543 |
| 3pioneer | 31 | Arraval Zanetti, Andre Felipe (1458) | Draw 1-1 | -21541 |
| 4pioneer | 52 | Caggiano, Joao Ricardo (1446) | Won 2-1 | +171558 |
| 5pioneer | 31 | Araujo Gontijo, Allan (1463) | Won 2-1 | +161574 |
| 6pioneer | 19 | Sapiras, Armando (1703) | Lost 0-2 | -161558 |
| 7pioneer | 34 | Silva, Ludmily (1480) | Lost 0-2 | -191539 |
| 8pioneer | 44 | Pettersen Forattini, Matheus (1624) | Won 2-0 | +191558 |
| top | average opponent: 1530record: 4-3-1 | new rating: 1558 | ||
| Grand Prix Sao Paulo 2019 (2) (ELD standard) | starting rating: 1544 | |||
| round | table | opponent (rating) | result | Δrating |
| A1standard | 76 | Menezes Oliveira, Wagner Felipe (1542) | Won 2-0 | +181562 |
| A2standard | 7 | Lima Pilmo, Alvaro (1497) | Draw 1-1 | -11561 |
| A3standard | 61 | Marocci Santos, Tiago (1525) | Lost 1-2 | -181543 |
| A4standard | 90 | Bernardes, Anderson (1499) | Lost 1-2 | -191524 |
| A5standard | 115 | Barbosa Da Silva, Pedro (1544) | Won 2-0 | +181542 |
| A6standard | 87 | Dantas, Pedro (1501) | Won 2-0 | +171559 |
| A7standard | 60 | Rodriguez, Lucas (1691) | Lost 0-2 | -151544 |
| top | average opponent: 1543record: 3-3-1 | new rating: 1544 | ||
| Grand Prix Porto Alegre 2017 (AER standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 25 | Pardo Simao Costa, Augusto (1518) | Won 2-1 | +181518 |
| 3standard | 11 | Sanchez, Rafael (1535) | Lost 1-2 | -171501 |
| 4standard | 186 | Cardozo, Jorge (1568) | Won 2-0 | +191520 |
| 5standard | 101 | Martins Gomes, Leandro (1657) | Lost 0-2 | -161504 |
| 6standard | 154 | Cabral, Andre (1517) | Lost 1-2 | -171487 |
| 7standard | 148 | Maciel, Julio (1579) | Won 2-1 | +191506 |
| 8standard | 140 | Cle, Vitor (1483) | Won 2-1 | +181524 |
| 9standard | 99 | dos Reis, Ruda (1566) | Won 2-0 | +191543 |
| 10standard | 82 | Aurelio, Marco (1524) | Won 2-0 | +171560 |
| 11standard | 39 | Coutinho, Thiago (1508) | Won 2-0 | +171577 |
| 12standard | 39 | Soares Neto, Carlos de Salles (1622) | Lost 1-2 | -171560 |
| 13standard | 33 | Barros, Victor (1626) | Lost 1-2 | -171543 |
| 14standard | 60 | Macedo Carvalho, Max (1599) | Lost 0-2 | -171526 |
| 15standard | 63 | Cristo, Cristiano (1529) | Won 2-0 | +181544 |
| top | average opponent: 1559record: 8-6 | new rating: 1544 | ||