Boni, Sidney
Current rating: 1535
Record: 5-3
| Grand Prix Hartford 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 595 | Zwicker, Bryan (1500) | Lost 0-2 | -181482 |
| 2modern | 687 | Moriarty, Thaddeus (1482) | Won 2-1 | +181500 |
| 3modern | 480 | Swank, Brian (1504) | Won 2-1 | +181518 |
| 4modern | 322 | Pelkey, Gary (1525) | Won 2-1 | +181536 |
| 5modern | 386 | Grimes, Zachary (1473) | Lost 0-2 | -191517 |
| 6modern | 429 | Tatian, John (1479) | Lost 0-2 | -191498 |
| 7modern | 408 | Llodra, Juan Pablo (1641) | Won 2-0 | +211519 |
| 8modern | 303 | Moore, Michael (1386) | Won 2-1 | +161535 |
| average opponent: 1499record: 5-3 | new rating: 1535 | |||