Barlak, John
Current rating: 1343
Record: 8-18-1
| Grand Prix Miami 2015 (FRF standard) | starting rating: 1387 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 136 | Oliveri, Jason (1470) | Lost 1-2 | -161371 |
| 2standard | 353 | Loza, Jose C (1488) | Lost 0-2 | -161355 |
| 3standard | 600 | Alvaroe, Mitchel (1537) | Draw 1-1 | +31358 |
| 4standard | 613 | Perhot, Gavin (1498) | Lost 1-2 | -151343 |
| top | average opponent: 1498record: 0-3-1 | new rating: 1343 | ||
| Grand Prix Orlando 2014 (KTK limited) | starting rating: 1436 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 199 | Jones, Ryan (1554) | Lost 1-2 | -161420 |
| 2sealed | 360 | Leeper, Cameron (1482) | Lost 1-2 | -171403 |
| 3sealed | 462 | Katine, Sara (1464) | Won 2-0 | +191422 |
| 4sealed | 420 | Lorton, Scott (1481) | Lost 1-2 | -171405 |
| 5sealed | 384 | Johnson, James (1385) | Lost 1-2 | -181387 |
| top | average opponent: 1473record: 1-4 | new rating: 1387 | ||
| Grand Prix Miami 2013 (DGM standard) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 186 | Silvestri, Jonathan (1467) | Lost 1-2 | -181429 |
| 2standard | 322 | Prasch, Jason (1481) | Won 2-0 | +191448 |
| 3standard | 224 | Grace, Jared (1466) | Lost 1-2 | -171431 |
| 4standard | 549 | Clinton, Jamal (1479) | Lost 1-2 | -181413 |
| 5standard | 479 | Bohlig, Amber (1466) | Lost 1-2 | -171396 |
| 6standard | 464 | Grayson, Larry (1446) | Won 2-1 | +191415 |
| 7standard | 361 | Silberstein, Jacob (1465) | Lost 0-2 | -171398 |
| 8standard | 301 | Medina, Mario Fabian (1446) | Won 2-1 | +191417 |
| 9standard | 247 | Aiello, Cameron (1464) | Won 2-0 | +191436 |
| top | average opponent: 1465record: 4-5 | new rating: 1436 | ||
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 945 | Bastecki, Alex (1523) | Won 2-0 | +181518 |
| 2sealed | 844 | Edelkamp, Fred (1742) | Lost 1-2 | -141504 |
| 3sealed | 1030 | Rogers, Travis (1500) | Won 2-1 | +181522 |
| 4sealed | 948 | Brown, Julius (1460) | Lost 0-2 | -191503 |
| 5sealed | 1000 | Asheed, Sabir (1499) | Lost 0-2 | -181485 |
| 6sealed | 1004 | Meshaw, Kenneth (1481) | Won 2-0 | +181503 |
| 7sealed | 940 | King, James (1436) | Lost 0-2 | -191484 |
| 8sealed | 524 | Cudia, Ben (1393) | Lost 0-2 | -201464 |
| 9sealed | 482 | Martinez, Etienne (1504) | Lost 1-2 | -171447 |
| top | average opponent: 1504record: 3-6 | new rating: 1447 | ||