Kalkbrenner, Matthew
Current rating: 1501
Record: 28-30-2
| Grand Prix Atlanta 2019 (legacy) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 15 | Cohen, Brent (1603) | Won 2-1 | +201519 |
| 2legacy | 143 | Beckham, Reginald (1514) | Lost 1-2 | -181501 |
| 3legacy | 298 | Russell, John (1501) | Won 2-1 | +181519 |
| 4legacy | 133 | Foldes, Tomas (1405) | Lost 0-2 | -211498 |
| 5legacy | 354 | Karhade, Rugved (1501) | Won 2-0 | +191517 |
| 6legacy | 234 | Sullivan, Cameron (1630) | Lost 0-2 | -161501 |
| top | average opponent: 1526record: 3-3 | new rating: 1501 | ||
| Grand Prix Memphis 2018 (RIX standard) | starting rating: 1453 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 20 | O'Connell, Gaven (1517) | Won 2-1 | +191472 |
| 3standard | 39 | Shields, Steve (1550) | Won 2-0 | +191491 |
| 4standard | 14 | Hillhouse, Andrew (1537) | Draw 1-1 | +11492 |
| 5standard | 63 | Jeffery, Kyle (1562) | Won 2-0 | +191511 |
| 6standard | 32 | Tierney, Justin (1600) | Lost 0-2 | -161495 |
| 7standard | 92 | Hughes, Michael (1586) | Won 2-1 | +201515 |
| 8standard | 53 | Bailey, Zachary (1630) | Lost 1-2 | -161499 |
| top | average opponent: 1569record: 4-2-1 | new rating: 1499 | ||
| Grand Prix Oklahoma City 2017 (modern) | starting rating: 1435 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 27 | Rennie, Evan (1548) | Lost 0-2 | -161419 |
| 3modern | 502 | Franks, Tanner (1556) | Won 2-1 | +211440 |
| 4modern | 209 | Eason, Anthony (1736) | Won 2-1 | +231463 |
| 5modern | 221 | Deiterman, Scott (1548) | Won 2-0 | +201483 |
| 6modern | 151 | Martinez, Steven (1670) | Lost 0-2 | -151468 |
| 7modern | 263 | Campbell, Joshua (1508) | Lost 0-2 | -171451 |
| 8modern | 305 | Albauer, Kevin (1412) | Won 2-1 | +171468 |
| 9modern | 197 | Solis, Juan (1616) | Lost 1-2 | -151453 |
| top | average opponent: 1574record: 4-4 | new rating: 1453 | ||
| Grand Prix Dallas-Fort Worth 2016 (modern) | starting rating: 1486 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 257 | Graham, Shea (1528) | Won 2-0 | +191505 |
| 3modern | 253 | Estrada, Cory (1539) | Draw 1-1 | 01505 |
| 4modern | 219 | Derbigny, Tony (1536) | Lost 1-2 | -171488 |
| 5modern | 438 | Odom, Gabriel (1482) | Lost 1-2 | -181470 |
| 6modern | 592 | McRoberts, Conner (1527) | Lost 0-2 | -171453 |
| 7modern | 690 | Caddell, Tyler (1477) | Lost 0-2 | -181435 |
| top | average opponent: 1515record: 1-4-1 | new rating: 1435 | ||
| Grand Prix Atlanta 2016 (KLD limited) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 842 | Gottlieb, Bryan (1981) | Lost 0-2 | -111525 |
| 3sealed | 1141 | Smith, Brandon (1533) | Won 2-1 | +191544 |
| 4sealed | 922 | Sandlin, Ian (1522) | Won 2-1 | +171561 |
| 5sealed | 844 | Gray, Jeremy (1455) | Lost 0-2 | -201541 |
| 6sealed | 834 | Leu, Kevin (1471) | Lost 1-2 | -191522 |
| 7sealed | 1033 | Juang, Kevin (1622) | Lost 1-2 | -161506 |
| 8sealed | 992 | Rocus, Andy (1405) | Lost 1-2 | -201486 |
| top | average opponent: 1570record: 2-5 | new rating: 1486 | ||
| Grand Prix Houston 2016 (OGW standard) | starting rating: 1533 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 12 | Odom, Devin (1500) | Won 2-0 | +171550 |
| 2standard | 293 | Mallett, David (1518) | Won 2-1 | +181568 |
| 3standard | 329 | Clark, Jason (1638) | Won 2-1 | +191587 |
| 4standard | 132 | Rountree, Collin (1679) | Lost 1-2 | -161571 |
| 5standard | 217 | Canerday, Tim (1505) | Lost 1-2 | -191552 |
| 6standard | 404 | Zaidi, Jibraeel (1809) | Lost 0-2 | -141538 |
| 7standard | 479 | Prehn, Jeremiah (1450) | Won 2-0 | +171555 |
| 8standard | 328 | Lukes, Scott (1515) | Lost 1-2 | -191536 |
| top | average opponent: 1577record: 4-4 | new rating: 1536 | ||
| Grand Prix Oklahoma City 2015 (modern) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 320 | Cagle, Adam (1500) | Won 2-0 | +181539 |
| 2modern | 249 | Casey, Jeremy (1518) | Lost 0-2 | -181521 |
| 3modern | 447 | Davis, Drake (1466) | Won 0-0 | +171538 |
| 4modern | 162 | McCollough, Sean (1523) | Lost 0-2 | -191519 |
| 5modern | 353 | Mock, Charles (1404) | Won 2-1 | +161535 |
| 6modern | 371 | Camp, Adam (1570) | Lost 0-2 | -171518 |
| 7modern | 284 | Herdman, William (1455) | Won 2-0 | +171535 |
| 8modern | 228 | Ruhl, Christopher (1483) | Lost 0-2 | -191516 |
| 9modern | 221 | Rocha, Sergio (1473) | Won 2-1 | +171533 |
| top | average opponent: 1488record: 5-4 | new rating: 1533 | ||
| Grand Prix Memphis 2015 (FRF standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 54 | Pardue, Chase (1500) | Won 2-0 | +181518 |
| 2standard | 170 | Parham, Jared (1518) | Won 2-1 | +181536 |
| 3standard | 43 | Donegan, Dylan (1683) | Lost 0-2 | -151521 |
| 4standard | 179 | Burns, Dick (1402) | Lost 1-2 | -211500 |
| 5standard | 333 | Durward, Caleb (1721) | Won 2-0 | +221522 |
| 6standard | 291 | Heminway, Curtis (1468) | Won 2-1 | +171539 |
| 7standard | 162 | Cook, Justin (1612) | Lost 1-2 | -161523 |
| 8standard | 169 | Mirfin, David (1438) | Lost 0-2 | -201503 |
| 9standard | 181 | Lehmkuhl, Mike (1508) | Won 2-0 | +181521 |
| top | average opponent: 1539record: 5-4 | new rating: 1521 | ||