Peterson, Greg
Current rating: 1557
Record: 20-16-1
| Grand Prix Niagara Falls 2019 (legacy) | starting rating: 1544 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 22 | Jackstadt, Matthew (1399) | Won 2-1 | +161560 |
| 2legacy | 160 | Schmidt, April (1447) | Lost 1-2 | -201540 |
| 3legacy | 342 | Hollobaugh, Travis (1494) | Won 2-1 | +171557 |
| 4legacy | 193 | Kelterbaum, Richard (1315) | Won 2-0 | +131570 |
| 5legacy | 91 | Knox, Dustin (1759) | Won 2-1 | +221592 |
| 6legacy | 80 | Gerrow, Tyler (1558) | Lost 0-2 | -191573 |
| 7legacy | 199 | Zhang, Boyang (1652) | Lost 1-2 | -161557 |
| top | average opponent: 1518record: 4-3 | new rating: 1557 | ||
| Grand Prix Oakland 2019 (modern) | starting rating: 1569 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 36 | Cagle, Mac (1500) | Lost 0-2 | -191550 |
| 2modern | 405 | Cabral, Alexander (1481) | Won 2-1 | +171567 |
| 3modern | 295 | Howard, Andrew (1498) | Won 2-0 | +161583 |
| 4modern | 329 | Cabacungan, Ian (1484) | Lost 1-2 | -191564 |
| 5modern | 352 | Mohs, Alexander (1499) | Lost 1-2 | -201544 |
| top | average opponent: 1492record: 2-3 | new rating: 1544 | ||
| Grand Prix Toronto 2018 (modern) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 222 | Ioannou, Peter (1453) | Lost 0-2 | -201533 |
| 2modern | 651 | Lavender, Peter (1481) | Won 2-1 | +171550 |
| 3modern | 527 | Costa, Evan (1484) | Won 2-0 | +171567 |
| 4modern | 332 | Dunn, Ryan (1555) | Won 2-1 | +181585 |
| 5modern | 304 | Korol, Keifer (1559) | Won 2-0 | +171602 |
| 6modern | 113 | Beldon, Omar (1681) | Lost 0-2 | -161586 |
| 7modern | 337 | Henry, Brenton (1658) | Lost 0-2 | -171569 |
| top | average opponent: 1553record: 4-3 | new rating: 1569 | ||
| Grand Prix Providence 2015 (DTK standard) | starting rating: 1552 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 93 | Badessa, John (1500) | Won 2-0 | +181570 |
| 2standard | 179 | Montes, Christian (1520) | Won 2-1 | +171587 |
| 3standard | 208 | Chapman, Ben (1706) | Lost 1-2 | -161571 |
| 4standard | 326 | Ascalon, Jason (1581) | Lost 0-2 | -181553 |
| top | average opponent: 1577record: 2-2 | new rating: 1553 | ||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 292 | Fujii, Colin (1500) | Won 2-0 | +181540 |
| 2sealed | 214 | Fann, Alex (1389) | Won 2-0 | +151555 |
| 3sealed | 226 | Becker, Brett (1535) | Won 2-1 | +181573 |
| 4sealed | 79 | Goodman, Sebastian (1557) | Lost 0-2 | -191554 |
| 5sealed | 214 | Jacobs, Adam (1503) | Won 2-0 | +171571 |
| 6sealed | 32 | Leal, Michael (1554) | Lost 0-2 | -181553 |
| 7sealed | 187 | Divine, Chad (1534) | Won 2-1 | +181571 |
| 8sealed | 83 | Crowle, Tomas (1556) | Lost 1-2 | -191552 |
| top | average opponent: 1516record: 5-3 | new rating: 1552 | ||
| Grand Prix Oakland 2013 (M14 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 139 | Chalfant, Andrew (1500) | Draw 1-1 | 01500 |
| 2sealed | 388 | Quintin, Cooper (1500) | Won 2-0 | +181518 |
| 3sealed | 685 | Nguyen, Daniel (1535) | Won 2-1 | +181536 |
| 4sealed | 183 | Hoge, Michael (1535) | Won 2-0 | +181554 |
| 5sealed | 94 | Nguyen, James (1807) | Lost 0-2 | -131541 |
| 6sealed | 336 | Chen, Stephen (1504) | Lost 0-2 | -191522 |
| top | average opponent: 1564record: 3-2-1 | new rating: 1522 | ||