Tobeay, Joseph
Current rating: 1538
| Grand Prix Detroit 2016 (modern) | starting rating: 1580 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 665 | Kuczynski, Larry (1536) | Won 2-0 | +171597 |
| 2modern | 317 | Davis, Corey (1517) | Won 2-0 | +171614 |
| 3modern | 87 | Ziegler, Ryan (1675) | Lost 1-2 | -171597 |
| 4modern | 711 | Uppal, Arvinder (1493) | Lost 0-2 | -201577 |
| 5modern | 794 | DeLong, Wes (1503) | Lost 1-2 | -191558 |
| 6modern | 877 | Thompson, David (1456) | Lost 0-2 | -201538 |
| top | average opponent: 1530record: 2-4 | new rating: 1538 | ||
| Grand Prix Cleveland 2015 (FRF limited) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 200 | Solomon, Ziv (1489) | Won 2-0 | +171536 |
| 2sealed | 195 | Franklin, Eric (1611) | Won 2-1 | +201556 |
| 3sealed | 120 | Rogers, Nick (1533) | Won 2-0 | +171573 |
| 4sealed | 162 | Skoczen, Ryan (1542) | Lost 0-2 | -181555 |
| 5sealed | 365 | Coffman, Robert (1445) | Won 2-0 | +161571 |
| 6sealed | 178 | Tierney, Matt (1597) | Won 2-1 | +181589 |
| 7sealed | 100 | Michaels, Lucas (1708) | Lost 0-2 | -161573 |
| 8sealed | 242 | Scheibel, James (1565) | Won 2-0 | +181591 |
| 9sealed | 121 | Watanabe, Yuuya (2002) | Lost 0-2 | -111580 |
| top | average opponent: 1610record: 6-3 | new rating: 1580 | ||
| Grand Prix Cleveland 2002 (Odyssey block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 186 | Meyer, Jeffrey W (1500) | Lost 0-2 | -181482 |
| 2block | 190 | Strasser, Dustin (1516) | Won 2-1 | +191501 |
| 3block | 140 | Krueger, Steve (1500) | Won 2-1 | +181519 |
| 4block | 104 | Duncker, Conrad (1534) | Lost 1-2 | -181501 |
| 5block | 148 | Rodriguez, Jeffrey (1499) | Lost 0-2 | -181483 |
| 6block | 167 | Fields, Scott (1482) | Won 2-1 | +181501 |
| 7block | 112 | Robek, Bryan (1499) | Won 2-0 | +181519 |
| top | average opponent: 1504record: 4-3 | new rating: 1519 | ||