Campbell, Billy
Current rating: 1530
| Grand Prix Pittsburgh 2013 (GTC limited) | starting rating: 1573 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 55 | Sulla, Aaron (1662) | Lost 1-2 | -171556 |
| 3sealed | 339 | Allen, Travis (1390) | Lost 0-2 | -211535 |
| 4sealed | 535 | Setree, Chris (1450) | Lost 0-2 | -191516 |
| 5sealed | 595 | Zou, Bill (1466) | Won 2-0 | +171533 |
| 6sealed | 486 | Shorr, Ardon (1481) | Lost 0-2 | -191514 |
| 7sealed | 386 | Chapnick, Aaron (1432) | Won 2-1 | +161530 |
| 8sealed | 311 | Schmittinger, Cody (1480) | Lost 1-2 | -191511 |
| 9sealed | 255 | Wright, Marcus (1529) | Won 2-1 | +191530 |
| top | average opponent: 1486record: 3-5 | new rating: 1530 | ||
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 921 | Worley, Chris (1538) | Lost 0-2 | -171502 |
| 2sealed | 1147 | Braun, Erik (1482) | Lost 1-2 | -191483 |
| 3sealed | 1166 | Mccoy, Aaron (1463) | Lost 1-2 | -181465 |
| 4sealed | 1181 | Friel, Steven (1445) | Won 2-0 | +181483 |
| 5sealed | 1094 | Jones, Patrick 2 (1465) | Won 2-0 | +171500 |
| 6sealed | 1016 | Prince, Chelsy (1519) | Won 2-0 | +191519 |
| 7sealed | 912 | Rosberg, Sean (1548) | Won 2-1 | +181537 |
| 8sealed | 501 | Page, Jonathan (1520) | Won 2-0 | +181555 |
| 9sealed | 441 | Shiver, Michael (1545) | Won 2-0 | +181573 |
| top | average opponent: 1503record: 6-3 | new rating: 1573 | ||
| Grand Prix Atlantic City 2013 (RTR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 141 | Stengle, Spencer (1500) | Lost 0-2 | -181482 |
| 2standard | 615 | Biever, Marshall (1484) | Lost 1-2 | -181464 |
| 3standard | 719 | Kuiken, Bobby (1466) | Won 2-1 | +181482 |
| 4standard | 566 | Murphree, Daniel (1481) | Won 2-0 | +181500 |
| 5standard | 419 | Hayman, Carl (1472) | Won 2-0 | +181518 |
| 6standard | 375 | Brown, Jake (1470) | Won 2-0 | +171535 |
| 7standard | 237 | Ollerenshaw, John (1535) | Lost 0-2 | -181517 |
| 8standard | 297 | Kemper, Greg (1714) | Lost 0-2 | -151502 |
| 9standard | 290 | Alves, Matthew A (1453) | Won 2-0 | +171519 |
| top | average opponent: 1508record: 5-4 | new rating: 1519 | ||