Greig, Peter
Current rating: 1566
Record: 19-19
| Regional Championships Atlanta 2023 (pioneer) | starting rating: 1546 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 257 | Straub, Devon (1760) | Lost 1-2 | -141532 |
| 2pioneer | 416 | Korfine, Julian (1512) | Won 2-0 | +181550 |
| 3pioneer | 357 | Wellman, Julian (1811) | Lost 0-2 | -141536 |
| 4pioneer | 402 | Cheng, Newton (1418) | Won 2-0 | +161552 |
| 5pioneer | 303 | Shoemaker, John (1583) | Won 2-1 | +191571 |
| 6pioneer | 154 | Brandes, Luke (1521) | Won 2-0 | +171588 |
| 7pioneer | 142 | Adams, Ty (1535) | Won 2-1 | +171605 |
| 8pioneer | 90 | Green, Nate (1424) | Lost 1-2 | -211584 |
| 9pioneer | 201 | Bailey, Douglas (1637) | Lost 1-2 | -181566 |
| top | average opponent: 1578record: 5-4 | new rating: 1566 | ||
| MagicCon Las Vegas 2023 Limited Open (WOE limited) | starting rating: 1495 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 3213 | Flury, Julian Felix (1877) | Lost 0-2 | -121483 |
| 2sealed | 3578 | Hansen, John (1328) | Won 2-0 | +161499 |
| 3sealed | 3238 | Neal, Stephen (1917) | Lost 1-2 | -111488 |
| 4sealed | 3471 | Kim, Gregory (1220) | Won 2-0 | +131501 |
| 5sealed | 3258 | Cox, Matthew (1455) | Won 2-1 | +171518 |
| 6sealed | 3018 | Boyd, Dylan (1703) | Won 2-0 | +211539 |
| 7sealed | 3196 | Tobey, Aaron (1910) | Won 2-0 | +251564 |
| 8sealed | 3129 | Westerlund, Alex (1572) | Lost 0-2 | -181546 |
| top | average opponent: 1623record: 5-3 | new rating: 1546 | ||
| Grand Prix Las Vegas 2018 (limited) (DOM limited) | starting rating: 1405 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 61 | Hogan, Kyle (1697) | Won 2-0 | +241429 |
| 2sealed | 254 | Johnson, Richard 1541 (1519) | Won 2-0 | +191448 |
| 3sealed | 261 | Gordon, Ray (1829) | Won 2-1 | +251473 |
| 4sealed | 2 | Yamamoto, Kentaro (2050) | Won 2-1 | +271500 |
| 5sealed | 1312 | Sliwinski, Brandon (1576) | Lost 0-2 | -161484 |
| 6sealed | 117 | Boone, Zac (1558) | Won 2-0 | +191503 |
| 7sealed | 77 | Cammilleri, Mike (1547) | Won 2-0 | +191522 |
| 8sealed | 19 | Cunniff, Raphael (1726) | Lost 1-2 | -141508 |
| 9sealed | 81 | Lam, Michael (1802) | Lost 1-2 | -131495 |
| top | average opponent: 1701record: 6-3 | new rating: 1495 | ||
| Grand Prix San Jose 2017 (AER limited) | starting rating: 1434 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 535 | Bartholdi, Maria (1584) | Lost 1-2 | -151419 |
| 2sealed | 458 | Gunn, Jesse (1482) | Won 2-0 | +191438 |
| 3sealed | 414 | Abrams, Daniel (1559) | Lost 0-2 | -161422 |
| 4sealed | 786 | Brown, Dick (1483) | Lost 1-2 | -171405 |
| top | average opponent: 1527record: 1-3 | new rating: 1405 | ||
| Grand Prix Las Vegas 2015 (2) (MM2 limited) | starting rating: 1487 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 86 | Gonzalez, Christian (1546) | Lost 1-2 | -171470 |
| 2sealed | 221 | Broser, Benjamin (1481) | Lost 0-2 | -181452 |
| 3sealed | 315 | Monay, Mark Bryan (1463) | Lost 1-2 | -181434 |
| top | average opponent: 1497record: 0-3 | new rating: 1434 | ||
| Grand Prix Los Angeles 2014 (KTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 122 | Levin, Eric (1500) | Won 2-0 | +181518 |
| 2standard | 117 | Olson, Alan (1528) | Won 2-0 | +181536 |
| 3standard | 148 | Job, Jonathan (1645) | Lost 1-2 | -161520 |
| 4standard | 237 | Alvarez, Salvador (1519) | Lost 0-2 | -181502 |
| 5standard | 423 | Merced, Davis (1646) | Lost 1-2 | -151487 |
| top | average opponent: 1568record: 2-3 | new rating: 1487 | ||