Ribeiro Sumida, Alyson
Current rating: 1555
Record: 6-3
| Grand Prix Sao Paulo 2015 (DTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 121 | Bortolucci Filho, Wilson (1531) | Won 2-0 | +191519 |
| 2standard | 178 | Italiano Gomes, Andre (1518) | Lost 0-2 | -181501 |
| 3standard | 396 | Carvalho de Medeiros, (1500) | Lost 1-2 | -181483 |
| 4standard | 430 | Bertolli Parra, Rafael (1482) | Lost 0-1 | -181465 |
| 5standard | 492 | Camara, Aristides (1563) | Won 2-0 | +191484 |
| 6standard | 447 | Santos, Thiago (1464) | Won 2-0 | +181502 |
| 7standard | 299 | Aliatti Maciel, Luciano (1491) | Won 2-0 | +181520 |
| 8standard | 221 | de Souza Costa Neves Neto, Jose Carlos (1533) | Won 2-1 | +181538 |
| 9standard | 174 | Jones, Erick (1501) | Won 2-1 | +171555 |
| average opponent: 1509record: 6-3 | new rating: 1555 | |||