Luiza, John
Current rating: 1442
Record: 5-9-1
| Grand Prix Pittsburgh 2017 (AER standard) | starting rating: 1427 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 237 | Setree, Chris (1518) | Lost 0-2 | -161411 |
| 2standard | 378 | Webster, Billy (1447) | Won 2-0 | +181429 |
| 3standard | 409 | Boyer, Wyatt (1501) | Won 2-0 | +201449 |
| 4standard | 411 | Andrees, Joseph (1579) | Won 2-1 | +201469 |
| 5standard | 151 | Wiznitzer, Aryeh (1774) | Lost 0-2 | -131456 |
| 6standard | 224 | Johnson, Eric4528 (1532) | Lost 1-2 | -161440 |
| 7standard | 374 | Schoyer, Allen (1469) | Won 2-1 | +181458 |
| 8standard | 271 | Downing, Bruce (1572) | Lost 0-2 | -161442 |
| average opponent: 1549record: 4-4 | new rating: 1442 | |||
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 722 | Ketterer, David (1500) | Won 2-0 | +181518 |
| 2modern | 229 | Wamboldt, Kyle (1517) | Draw 1-1 | 01518 |
| 3modern | 530 | Hernandez, Kevin (1464) | Lost 0-2 | -191499 |
| 4modern | 827 | Grier, Genevieve (1522) | Lost 0-2 | -181481 |
| 5modern | 998 | Wesoloski, Alex (1451) | Lost 1-2 | -181463 |
| 6modern | 933 | Willmer, Troy (1466) | Lost 0-2 | -181445 |
| 7modern | 782 | Tou, April (1446) | Lost 0-2 | -181427 |
| average opponent: 1481record: 1-5-1 | new rating: 1427 | |||