Vieira, Jean
Current rating: 1515
Record: 13-14-3
| Regional Championships Sao Paulo 2023 Cycle 3 (pioneer) | starting rating: 1469 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 31 | Prevido, Andrei (1467) | Lost 1-2 | -181451 |
| 2pioneer | 60 | Ramos Modesto, Danilo (1983) | Lost 1-2 | -91442 |
| 3pioneer | 73 | Bernardino, Romulo (1465) | Won 2-1 | +181460 |
| 4pioneer | 66 | Lopes, Djalma Hilton (1488) | Lost 0-2 | -171443 |
| 5pioneer | 65 | Lubke, Gabriel (1468) | Won 2-0 | +181461 |
| 6pioneer | 48 | egger, patrick (1483) | Won 2-0 | +191480 |
| 7pioneer | 32 | Brotto, Felipe (1423) | Won 2-0 | +171497 |
| 8pioneer | 32 | Romero, Bruno (1525) | Won 2-0 | +181515 |
| top | average opponent: 1538record: 5-3 | new rating: 1515 | ||
| Grand Prix Sao Paulo 2019 (2) (ELD standard) | starting rating: 1474 | |||
| round | table | opponent (rating) | result | Δrating |
| A1standard | 86 | Baring, Elton (1500) | Lost 0-2 | -171457 |
| A2standard | 109 | Zorzi Pinarello, Marcelo (1604) | Lost 0-2 | -161441 |
| A3standard | 126 | Menezes Oliveira, Wagner Felipe (1506) | Won 2-0 | +201461 |
| A4standard | 126 | Fusaro, Victor (1520) | Lost 0-2 | -171444 |
| B1standard | 58 | Otomura, Solon (1465) | Lost 1-2 | -181426 |
| B2standard | 119 | Benite, Ana Paula (1482) | Draw 1-1 | +11427 |
| B3standard | 143 | Oliveira, Roriel (1482) | Won 2-0 | +191446 |
| B4standard | 108 | Didona, Jonata (1490) | Won 0-0 | +191465 |
| B5standard | 74 | Giucci, Leonardo (1706) | Draw 1-1 | +41469 |
| top | average opponent: 1528record: 3-4-2 | new rating: 1469 | ||
| Grand Prix Porto Alegre 2017 (AER standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 42 | Oliveira, Tom (1538) | Won 2-1 | +191519 |
| 4standard | 30 | Oliveira Graichen, Leonardo (1662) | Lost 0-2 | -161503 |
| 5standard | 71 | Novak, Treicy (1628) | Won 2-1 | +211524 |
| 6standard | 68 | Silva, Daniel [BRA] (1528) | Won 2-1 | +181542 |
| 7standard | 13 | Sanchez, Rafael (1574) | Lost 1-2 | -181524 |
| 8standard | 76 | Xavier, Joao (1550) | Won 2-0 | +191543 |
| 9standard | 23 | Saur, Vitor (1544) | Won 2-0 | +181561 |
| 10standard | 27 | Souza, Joao Claudio (1656) | Lost 0-2 | -171544 |
| 11standard | 30 | Ramos, Paulo (1547) | Lost 1-2 | -181526 |
| 12standard | 54 | Aurelio, Marco (1524) | Lost 0-2 | -181508 |
| 13standard | 79 | Pereira de Oliveira, Diogo (1522) | Lost 0-2 | -171491 |
| 14standard | 73 | Pinheiro, Tiago Thomaz (1519) | Draw 1-1 | 01491 |
| 15standard | 70 | de Souza Silva, Giliad (1554) | Lost 1-2 | -171474 |
| top | average opponent: 1565record: 5-7-1 | new rating: 1474 | ||