Hartwig, Logan
Current rating: 1469
Record: 13-16-2
| Grand Prix Minneapolis 2019 (modern) | starting rating: 1506 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 159 | Spalsbury, Dakota (1500) | Lost 0-2 | -181488 |
| 2modern | 392 | Porras, Tony (1411) | Won 2-0 | +161504 |
| 3modern | 365 | Rabaey, Jacob (1468) | Lost 0-2 | -181486 |
| 4modern | 399 | Rackoff, Max (1584) | Lost 1-2 | -171469 |
| top | average opponent: 1491record: 1-3 | new rating: 1469 | ||
| Grand Prix Minneapolis 2017 (HOU standard) | starting rating: 1436 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 160 | Pospichal, Levi (1460) | Lost 1-2 | -181418 |
| 2standard | 319 | Schindler, Cole (1440) | Won 2-1 | +191437 |
| 3standard | 254 | Broadstone, Benjamin (1692) | Won 2-1 | +221459 |
| 4standard | 339 | Huskey, Justin (1508) | Lost 0-2 | -171442 |
| 5standard | 349 | Pulera, Scott (1536) | Won 2-0 | +201462 |
| 6standard | 208 | Nance, Stephen (1452) | Lost 1-2 | -181444 |
| 7standard | 361 | Spaeth-Olson, Cyrus (1498) | Won 2-1 | +191463 |
| 8standard | 190 | Smith, Paxton (1466) | Won 2-1 | +181481 |
| 9standard | 189 | Monte, Jordan (1547) | Won 2-0 | +191500 |
| 10standard | 542 | Schwartzkopf, Adam (1513) | Won 2-1 | +181518 |
| 11standard | 557 | Medley, Jacob (1719) | Draw 1-1 | +41522 |
| 12standard | 536 | Tan, Edgar (1635) | Lost 0-2 | -161506 |
| top | average opponent: 1539record: 7-4-1 | new rating: 1506 | ||
| Grand Prix Atlanta 2011 (extended) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 167 | Richard, Shawn (1484) | Won 2-0 | +181484 |
| 2extended | 75 | Cembor, Brad (1519) | Lost 0-2 | -171467 |
| 3extended | 170 | Herzberg, David (1501) | Won 2-0 | +181485 |
| 4extended | 152 | Lorren, Phillip (1615) | Lost 1-2 | -151470 |
| 5extended | 177 | Jackson, Ian (1569) | Lost 1-2 | -171453 |
| 6extended | 191 | Lear, Tanner (1484) | Lost 0-2 | -171436 |
| top | average opponent: 1529record: 2-4 | new rating: 1436 | ||
| Grand Prix Houston 2010 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 194 | Rodriqueq, Emanuel (1500) | Won 2-1 | +181518 |
| 2extended | 103 | Gaard, Sam (1618) | Lost 0-2 | -161502 |
| 3extended | 213 | Burns, Patrick (1499) | Lost 0-2 | -181484 |
| 4extended | 272 | Bentley, Johnathan (1428) | Lost 1-2 | -191465 |
| 5extended | 259 | Owens, Jerry (1462) | Won 2-0 | +181483 |
| 6extended | 203 | Dixon, Shayne (1483) | Won 2-0 | +181501 |
| 7extended | 144 | Gonzalez, Mariano (1526) | Draw 1-1 | 01501 |
| 8extended | 117 | Poff, Chris (1505) | Lost 0-2 | -181483 |
| 9extended | 95 | Southworth, Jason (1500) | Lost 1-2 | -171466 |
| top | average opponent: 1502record: 3-5-1 | new rating: 1466 | ||