Undercoffer, Bryan
Current rating: 1507
| Grand Prix Seattle 2019 (MH1 limited) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| A1sealed | 451 | Martin, Pete (1536) | Won 2-1 | +191518 |
| A2sealed | 385 | LaBrado, Jake (1485) | Won 2-0 | +171535 |
| A3sealed | 210 | Wu, Jia (1693) | Won 2-1 | +211556 |
| A4sealed | 59 | Rice, Timothy (1628) | Lost 0-2 | -171539 |
| A5sealed | 102 | Lucas, Peyton (1543) | Lost 0-2 | -181521 |
| A6sealed | 215 | Crackenberg, Peter (1492) | Won 2-1 | +181539 |
| A7sealed | 200 | Yang, Zizhuang (1776) | Lost 1-2 | -141525 |
| A8sealed | 123 | Hattori, Taylor (1527) | Lost 0-2 | -181507 |
| top | average opponent: 1585record: 4-4 | new rating: 1507 | ||
| Grand Prix Los Angeles 2016 (modern) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 310 | Garcia-Mason, Gregory (1500) | Won 2-0 | +181520 |
| 2modern | 99 | Black, Joe (1507) | Lost 0-2 | -181502 |
| 3modern | 640 | Thorolfsson, Thor (1490) | Won 2-0 | +171519 |
| 4modern | 375 | Sharer, Miles (1475) | Won 2-0 | +181537 |
| 5modern | 271 | Spansel, Kris (1473) | Lost 0-2 | -191518 |
| 6modern | 513 | Mohd Shuhaimi, Nik (1479) | Lost 1-2 | -191499 |
| top | average opponent: 1487record: 3-3 | new rating: 1499 | ||
| Grand Prix Sacramento 2014 (THS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 50 | Alter, Justin (1500) | Lost 1-2 | -181482 |
| 2sealed | 378 | Julian, Sam (1556) | Won 2-1 | +191501 |
| 3sealed | 410 | DaCosta, Yvonne (1500) | Won 2-1 | +181519 |
| 4sealed | 311 | Boeck, Jordan (1518) | Won 2-1 | +181537 |
| 5sealed | 204 | Brown, Steven (1508) | Lost 0-2 | -181519 |
| 6sealed | 290 | Lundquist, Eric (1585) | Lost 0-2 | -171502 |
| top | average opponent: 1528record: 3-3 | new rating: 1502 | ||