Guerin Zveibil, Jean Rafael
Current rating: 1684
Record: 17-7-1
| Regional Championships Sao Paulo 2022 (pioneer) | starting rating: 1708 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 92 | Prevido, Andrei (1480) | Won 2-0 | +141722 |
| 2pioneer | 45 | Warzynski, Vitor (1574) | Lost 1-2 | -201702 |
| 3pioneer | 50 | Bossaneli Araujo, William (1728) | Lost 1-2 | -181684 |
| top | average opponent: 1594record: 1-2 | new rating: 1684 | ||
| Grand Prix Sao Paulo 2019 (modern) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 256 | Lizana Arriagada, Rodolfo Antonio (1500) | Draw 1-1 | -11519 |
| 2modern | 355 | Sales, Pietro (1570) | Won 2-0 | +191538 |
| 3modern | 270 | Arcos, Ricardo (1485) | Won 2-0 | +171555 |
| 4modern | 126 | Delbuono, Umberto (1563) | Lost 1-2 | -181537 |
| 5modern | 270 | Siqueira, Vitor de Paiva (1520) | Won 2-0 | +181555 |
| 6modern | 171 | Tiberio, Carlos (1662) | Won 2-0 | +201575 |
| 7modern | 104 | Teixeira Silva, Jean Pablo (1563) | Won 2-1 | +181593 |
| 8modern | 60 | Farjat, Jair (1710) | Won 2-0 | +201613 |
| 9modern | 33 | Souza Silva Araujo, Tulio (1476) | Won 2-1 | +151628 |
| 10modern | 16 | Fonseca, Guilherme (1780) | Lost 1-2 | -151613 |
| 11modern | 46 | Magalhaes, Breno (1746) | Won 2-0 | +211634 |
| 12modern | 29 | Machado, Max (1589) | Won 2-1 | +171651 |
| 13modern | 18 | Donghia Badaro, Filipe (1745) | Won 2-1 | +201671 |
| 14modern | 10 | Bertolli Parra, Rafael (1805) | Won 2-1 | +201691 |
| 15modern | 6 | Cordeiro Marques, Daniel (1666) | Won 2-0 | +171708 |
| top | average opponent: 1625record: 12-2-1 | new rating: 1708 | ||
| Grand Prix Sao Paulo 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 329 | Giucci, Leonardo (1553) | Lost 0-2 | -171483 |
| 2modern | 393 | Heylmann, Henrique (1479) | Won 2-0 | +181501 |
| 3modern | 486 | Formici, Carlos (1482) | Lost 0-2 | -181483 |
| 4modern | 456 | Brizzi Machado, Marco Aurelio (1481) | Won 2-0 | +181501 |
| 5modern | 399 | Lourenco Barbosa, Felipe (1552) | Won 2-1 | +181519 |
| 6modern | 253 | Lima, Alisson (1593) | Won 2-0 | +201539 |
| 7modern | 171 | Reyes Moreno, Pietro (1477) | Lost 0-2 | -191520 |
| top | average opponent: 1517record: 4-3 | new rating: 1520 | ||