Chrobak, Mike
Current rating: 1617
Record: 27-20
| Grand Prix Reno 2020 (THB limited) | starting rating: 1608 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 86 | Bailey, Samson (1480) | Won 2-1 | +161624 |
| 4sealed | 70 | Ganzler, Eric (1652) | Lost 0-2 | -181606 |
| 5sealed | 115 | Buddensiek, Peter (1604) | Won 2-1 | +181624 |
| 6sealed | 31 | Tan, Richard (1875) | Won 2-0 | +231647 |
| 7sealed | 49 | Firestone, Spencer (1607) | Won 2-1 | +171664 |
| 8sealed | 22 | Nichols, Peden (1996) | Lost 0-2 | -121652 |
| 9sealed | 168 | Lew, Michael (1750) | Lost 0-2 | -161636 |
| 10draft | 169 | Place, Justin (1572) | Lost 1-2 | -191617 |
| 11draft | 161 | James, Kyle (1641) | Lost 1-2 | -181599 |
| 12draft | 175 | Hryshchenko, Viktoriia (1574) | Won 2-1 | +181617 |
| top | average opponent: 1675record: 5-5 | new rating: 1617 | ||
| Grand Prix Sacramento 2018 (M19 limited) | starting rating: 1625 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 93 | Johnson-Staub, Benjamin (1445) | Lost 0-2 | -211604 |
| 2sealed | 373 | Ballard, Weston (1483) | Won 2-1 | +151619 |
| 3sealed | 290 | Feldman, Jonah (1503) | Lost 0-2 | -201599 |
| 4sealed | 496 | Mendonsa, Khristian (1418) | Won 2-0 | +151614 |
| 5sealed | 387 | Alvarenga, Gustavo (1451) | Won 2-0 | +151629 |
| 6sealed | 316 | Brockman, David Derek Scott (1473) | Lost 1-2 | -211608 |
| top | average opponent: 1462record: 3-3 | new rating: 1608 | ||
| Grand Prix San Jose 2017 (AER limited) | starting rating: 1609 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 500 | Wong, Nick (1441) | Won 2-0 | +151624 |
| 2sealed | 377 | Halecky, Joshua (1499) | Won 2-1 | +151639 |
| 3sealed | 140 | Garvin, Andrew (1652) | Won 2-1 | +191658 |
| 4sealed | 114 | Hendricks, John (1516) | Won 2-1 | +151673 |
| 5sealed | 87 | Cheon, Paul (1929) | Lost 0-2 | -131660 |
| 6sealed | 69 | Sciesinski, Marcin (1637) | Lost 1-2 | -191641 |
| 7sealed | 163 | Cheng, Aaron (1725) | Lost 0-2 | -161625 |
| top | average opponent: 1628record: 4-3 | new rating: 1625 | ||
| Grand Prix Sacramento 2014 (THS limited) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1006 | Dixon, David R (1500) | Won 2-0 | +171570 |
| 2sealed | 1063 | Velasco, Jonathan (1525) | Won 2-0 | +171587 |
| 3sealed | 1101 | Dy, Michael (1556) | Won 2-1 | +181605 |
| 4sealed | 1010 | Gerard, Stephane (1676) | Won 2-0 | +191624 |
| 5sealed | 1030 | Brown, Andrew (1709) | Won 2-1 | +201644 |
| 6sealed | 1004 | Kelly, Ross (1613) | Won 2-1 | +171661 |
| 7sealed | 1005 | Perry, Tyson (1673) | Won 2-1 | +181679 |
| 8sealed | 1002 | Goodwin, Luke (1770) | Lost 0-2 | -161663 |
| 9sealed | 1016 | Sittner, Alex (1938) | Lost 0-2 | -131650 |
| 10draft | 73 | Ascalon, Jason (1650) | Won 2-1 | +181668 |
| 11draft | 52 | Shen, Qian (1628) | Lost 0-2 | -191649 |
| 12draft | 31 | Mao, Kevin (1591) | Lost 1-2 | -191630 |
| 13draft | 34 | Betts, Jonathan (1559) | Won 2-0 | +171647 |
| 14draft | 61 | Wong, Daniel 1804 (1624) | Lost 1-2 | -191628 |
| 15draft | 82 | Kubin, Ryan (1543) | Lost 0-2 | -191609 |
| top | average opponent: 1637record: 9-6 | new rating: 1609 | ||
| Grand Prix Oakland 2013 (M14 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 529 | Haleckey, Josh (1500) | Won 2-0 | +181518 |
| 2sealed | 132 | Cohu, Cliff (1456) | Lost 0-2 | -191499 |
| 3sealed | 494 | H667, Chris (1499) | Won 2-0 | +181517 |
| 4sealed | 414 | Oakes, Connor (1614) | Lost 1-2 | -161501 |
| 5sealed | 526 | Stewart, Christopher (1501) | Won 2-0 | +181519 |
| 6sealed | 99 | Bieker, Tor (1506) | Won 2-0 | +171536 |
| 7sealed | 78 | Howell, Kyle (1546) | Won 2-0 | +191555 |
| 8sealed | 125 | Derdzinski, Mark (1510) | Lost 1-2 | -191536 |
| 9sealed | 154 | Chandler, Angela (1504) | Won 2-0 | +171553 |
| top | average opponent: 1515record: 6-3 | new rating: 1553 | ||