Vaughn, Brian
Current rating: 1338
Record: 18-30-3
| Grand Prix Dallas-Fort Worth 2019 (modern) | starting rating: 1436 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 24 | Hopson, Dustin (1537) | Lost 0-2 | -161420 |
| 4modern | 263 | Mayall, Courtney (1515) | Lost 0-2 | -161404 |
| 5modern | 388 | Branch, Colton (1455) | Lost 1-2 | -171387 |
| 6modern | 386 | McGowan, Brian (1503) | Lost 0-2 | -161371 |
| 7modern | 343 | Lafleur, Cody (1470) | Lost 0-2 | -161355 |
| 8modern | 287 | Jones, Sarah (1445) | Lost 1-2 | -171338 |
| top | average opponent: 1487record: 0-6 | new rating: 1338 | ||
| Grand Prix Memphis 2019 (RNA standard) | starting rating: 1443 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 178 | Leffeler, Logan (1561) | Lost 0-2 | -161427 |
| 3standard | 266 | Shaw, Andrew (1473) | Won 2-0 | +191446 |
| 4standard | 175 | Dietrick, Evan (1519) | Lost 0-1 | -161430 |
| 5standard | 279 | Nix, Christopher (1497) | Lost 0-2 | -171413 |
| 6standard | 311 | Bellavance, Nicholas (1481) | Won 2-1 | +191432 |
| 7standard | 257 | Lie, Benaya (1648) | Lost 0-2 | -141418 |
| 8standard | 220 | Maune, William (1443) | Won 2-1 | +181436 |
| top | average opponent: 1517record: 3-4 | new rating: 1436 | ||
| Grand Prix New Jersey 2018 (GRN standard) | starting rating: 1452 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 242 | Bialkowski, Adam (1636) | Lost 1-2 | -141438 |
| 3standard | 359 | Hendry, Ian (1622) | Lost 0-2 | -151423 |
| 4standard | 458 | Quirke, Ethan (1471) | Lost 0-2 | -171406 |
| 5standard | 494 | Rubin, Nicholas (1391) | Lost 0-2 | -181388 |
| 6standard | 470 | Petrock, Brandon (1364) | Won 2-1 | +171405 |
| 7standard | 394 | Yashchin, Daniel (1465) | Won 2-0 | +191424 |
| 8standard | 327 | Hally, Tristan (1477) | Won 2-0 | +191443 |
| top | average opponent: 1490record: 3-4 | new rating: 1443 | ||
| Grand Prix Richmond 2018 (std) (M19 standard) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 32 | Christian, Caleb (1519) | Lost 0-2 | -181486 |
| 3standard | 278 | Dannenberg, Robert (1445) | Won 2-0 | +171503 |
| 4standard | 264 | Walters, William (1464) | Won 2-0 | +181521 |
| 5standard | 152 | Abela, Andrew (1609) | Lost 0-2 | -171504 |
| 6standard | 176 | Rhoades, Jessee (1550) | Lost 1-2 | -171487 |
| 7standard | 203 | Bunch, Jake (1500) | Lost 0-2 | -181469 |
| 8standard | 206 | Heath, Joel (1522) | Lost 0-2 | -171452 |
| top | average opponent: 1516record: 2-5 | new rating: 1452 | ||
| Grand Prix Pittsburgh 2018 (DOM standard) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 50 | Moulson, Malcolm (1518) | Won 2-1 | +181526 |
| 3standard | 228 | Chichy, Christopher (1671) | Won 2-0 | +201546 |
| 4standard | 59 | Kamperman, Forrest (1787) | Won 2-1 | +231569 |
| 5standard | 17 | Petersen, Justin (1569) | Lost 0-2 | -181551 |
| 6standard | 54 | Hienz, Chad (1599) | Lost 0-2 | -171534 |
| 7standard | 164 | Vaughan, Robert (1835) | Lost 0-2 | -131521 |
| 8standard | 171 | Corzo, Jonathan (1576) | Lost 0-2 | -171504 |
| top | average opponent: 1651record: 3-4 | new rating: 1504 | ||
| Grand Prix Dallas-Fort Worth 2018 (DOM limited) | starting rating: 1539 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 197 | Nguyen, David (1803) | Lost 0-2 | -141525 |
| 2sealed | 238 | Lilly, Nathan (1486) | Won 2-1 | +181543 |
| 3sealed | 368 | Martinez, Alfonso (1483) | Lost 1-2 | -191524 |
| 4sealed | 448 | White, Paul (1632) | Lost 1-2 | -161508 |
| top | average opponent: 1601record: 1-3 | new rating: 1508 | ||
| Grand Prix Memphis 2018 (RIX standard) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 184 | Neely, Tee (1500) | Won 2-1 | +181517 |
| 2standard | 126 | Barboza, Andres (1528) | Lost 0-2 | -171500 |
| 3standard | 320 | Pitts, Jason (1443) | Lost 1-2 | -201480 |
| 4standard | 482 | Owen, Andrew (1539) | Won 2-1 | +201500 |
| 5standard | 368 | Dewailly, Benjamen (1483) | Won 2-1 | +171517 |
| 6standard | 227 | Umberson, JD (1550) | Won 2-0 | +191536 |
| 7standard | 112 | Bedsole, Hayden (1696) | Lost 0-2 | -151521 |
| 8standard | 176 | Francoletti, William (1519) | Won 2-0 | +181539 |
| top | average opponent: 1532record: 5-3 | new rating: 1539 | ||
| Grand Prix Phoenix 2006 (CSP limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 83 | Manzanares, Jeanpaul (1500) | Draw 1-1 | 01500 |
| 2sealed | 95 | Chawen, Roman M (1500) | Draw 1-1 | 01500 |
| 3sealed | 128 | Savidge, James L (1500) | Lost 0-2 | -181482 |
| 4sealed | 162 | Condon, Alex (1460) | Draw 1-1 | 01482 |
| 5sealed | 148 | Gayle, Michael (1466) | Won 2-0 | +171499 |
| top | average opponent: 1485record: 1-1-3 | new rating: 1499 | ||