Ribak, Sergei
Current rating: 1396
Record: 5-11
| Grand Prix Providence 2016 (KLD standard) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 270 | Smith, Justin (1428) | Lost 1-2 | -181427 |
| 2standard | 312 | Gagnon, Louis (1579) | Lost 0-2 | -151412 |
| 3standard | 559 | Smoot, Donald (1536) | Lost 0-2 | -161396 |
| top | average opponent: 1514record: 0-3 | new rating: 1396 | ||
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1480 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 130 | Corbin, Julia (1436) | Won 2-1 | +171497 |
| 2modern | 497 | Cortez, Jonathan (1518) | Lost 1-2 | -181479 |
| 3modern | 1007 | Musselman, Reuben (1565) | Lost 0-2 | -161463 |
| 4modern | 943 | Bouc, Zachary (1482) | Lost 0-2 | -181445 |
| top | average opponent: 1500record: 1-3 | new rating: 1445 | ||
| Grand Prix Boston-Worcester 2014 (modern) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 184 | Szymanski, Amanda (1429) | Lost 0-2 | -201498 |
| 2modern | 501 | Smith, John 8951 (1482) | Lost 1-2 | -181480 |
| top | average opponent: 1455record: 0-2 | new rating: 1480 | ||
| Grand Prix Detroit 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 369 | Krafft, Adam (1464) | Won 2-1 | +171517 |
| 2modern | 109 | Wash, Thomas (1518) | Won 0-0 | +181535 |
| 3modern | 20 | Howard, Cody (1500) | Won 2-0 | +181553 |
| 4modern | 51 | Noworaj, Andrew (1711) | Won 2-1 | +211574 |
| 5modern | 51 | Katz, Aaron (1588) | Lost 0-2 | -181556 |
| 6modern | 176 | Baum, Meg (1408) | Lost 1-2 | -211535 |
| 7modern | 309 | Piazza, John (1555) | Lost 0-0 | -171518 |
| top | average opponent: 1535record: 4-3 | new rating: 1518 | ||