Gray, Robert
Current rating: 1476
Record: 19-21
| Grand Prix Pittsburgh 2017 (AER standard) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 213 | Hanley, Sean (1500) | Won 2-1 | +191484 |
| 2standard | 97 | Shepard, Jesse (1559) | Lost 0-2 | -171467 |
| 3standard | 419 | Morris, Adam (1499) | Lost 0-1 | -171450 |
| 4standard | 515 | Bates, Jeffrey (1460) | Won 2-0 | +181468 |
| 5standard | 394 | Dunn, Ryan 1615 (1464) | Won 2-1 | +181486 |
| 6standard | 423 | Mercado, Franz (1515) | Won 2-1 | +191505 |
| 7standard | 259 | Norton, Daniel (1771) | Lost 1-2 | -141491 |
| 8standard | 280 | Sears, Rob (1614) | Lost 1-2 | -151476 |
| top | average opponent: 1548record: 4-4 | new rating: 1476 | ||
| Grand Prix Orlando 2014 (KTK limited) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1077 | Couture, Ian (1500) | Lost 0-2 | -181485 |
| 2sealed | 1190 | Sillen, Brandon (1481) | Won 2-0 | +181503 |
| 3sealed | 230 | Miyajima, John (1497) | Lost 1-2 | -191484 |
| 4sealed | 373 | Baggett, Erik (1430) | Lost 0-0 | -191465 |
| top | average opponent: 1477record: 1-3 | new rating: 1465 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 331 | Weigel, Eric (1584) | Won 2-0 | +191519 |
| 2modern | 45 | Caramico, Jeremy (1518) | Won 2-1 | +181537 |
| 3modern | 53 | Le, Steven (1579) | Lost 1-2 | -171520 |
| 4modern | 329 | Kemple, Christopher (1595) | Lost 1-2 | -171503 |
| 5modern | 370 | Bentley, Bryan (1469) | Won 2-0 | +181521 |
| 6modern | 277 | Boccio, Benjamin (1554) | Lost 1-2 | -181503 |
| 7modern | 266 | Cavalieri, Mani (1511) | Won 2-1 | +181521 |
| 8modern | 207 | Beausoleil, Trevor (1484) | Lost 0-2 | -181503 |
| top | average opponent: 1537record: 4-4 | new rating: 1503 | ||
| Grand Prix Las Vegas 2013 (MMA limited) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1499 | Dulian, Michael (1500) | Won 2-0 | +181523 |
| 2sealed | 1502 | Gridley, Evan J (1518) | Lost 1-2 | -181505 |
| 3sealed | 1593 | Adams, Laurence (1470) | Lost 0-2 | -191486 |
| 4sealed | 1668 | Imaizumi, Riku (1465) | Lost 1-2 | -181468 |
| 5sealed | 1417 | Phelps, Heather (1339) | Won 2-0 | +151483 |
| 6sealed | 1146 | Spenner, Morgan (1481) | Won 2-0 | +181501 |
| 7sealed | 912 | Rivero, Roberto (1486) | Lost 1-2 | -181483 |
| 8sealed | 721 | van der Willigen, Guus (1401) | Won 2-1 | +171500 |
| top | average opponent: 1458record: 4-4 | new rating: 1500 | ||
| Grand Prix London 2013 (GTC limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 70 | Cattrysse, Sabbe (1601) | Lost 0-2 | -151468 |
| 2sealed | 494 | Fava, Riccardo (1481) | Lost 1-2 | -181450 |
| 3sealed | 806 | Gore, James (1464) | Won 2-1 | +181468 |
| 4sealed | 729 | Hopkins, Samuel (1485) | Won 2-1 | +181486 |
| 5sealed | 649 | Bradley, Jake (1500) | Won 2-0 | +191505 |
| 6sealed | 327 | Kazanskis, Viktors (1521) | Lost 0-2 | -181487 |
| 7sealed | 446 | Viezzi, Devid (1487) | Won 2-1 | +181505 |
| top | average opponent: 1505record: 4-3 | new rating: 1505 | ||
| Grand Prix Orlando 2012 (ISD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 172 | Schott, Andrew (1500) | Lost 0-2 | -181482 |
| 2standard | 353 | Cabrera, Rogelio (1482) | Lost 0-2 | -181464 |
| 3standard | 380 | Grace, Ryan (1464) | Won 2-0 | +181482 |
| 4standard | 327 | Lluch, Jose (1482) | Won 2-1 | +181500 |
| 5standard | 338 | Edwards, Kenneth R (1579) | Lost 0-2 | -171483 |
| top | average opponent: 1502record: 2-3 | new rating: 1483 | ||