Hartless, Jayson K
Current rating: 1515
Record: 15-14-2
| Grand Prix Austin 2012 (ISD limited) | starting rating: 1530 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 35 | Graves, Josh (1452) | Won 2-0 | +171547 |
| 5sealed | 8 | Charlesworth, Riley (1520) | Won 2-0 | +171564 |
| 6sealed | 22 | VanMeter, Chris (1705) | Lost 1-2 | -151549 |
| 7sealed | 71 | Mayer, Kevin (1662) | Lost 0-2 | -161533 |
| 8sealed | 111 | Kuhlman, Lawrence Q (1556) | Lost 1-2 | -181515 |
| top | average opponent: 1579record: 2-3 | new rating: 1515 | ||
| Grand Prix Kansas City 2011 (NPH limited) | starting rating: 1586 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 34 | Weihe, Sean (1569) | Lost 1-2 | -181568 |
| 5sealed | 116 | Payne, Douglas (1489) | Lost 1-2 | -191549 |
| 6sealed | 229 | Sader, Scott (1519) | Lost 0-2 | -191530 |
| top | average opponent: 1525record: 0-3 | new rating: 1530 | ||
| Grand Prix Dallas-Fort Worth 2011 (MBS standard) | starting rating: 1630 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 137 | Mathis, Wade (1518) | Won 2-0 | +161646 |
| 3standard | 81 | Brown, Christopher R (1537) | Lost 0-2 | -201626 |
| 4standard | 200 | Ashline, Cory (1474) | Lost 1-2 | -211605 |
| 5standard | 330 | Dismukes, Trey (1565) | Lost 0-2 | -191586 |
| top | average opponent: 1524record: 1-3 | new rating: 1586 | ||
| Grand Prix Denver 2011 (MBS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 409 | Lutz, Cody R (1500) | Lost 0-2 | -181482 |
| 2sealed | 560 | Inda, Joshua (1482) | Won 2-1 | +181500 |
| 3sealed | 516 | Hunt, Nathaniel (1499) | Won 2-1 | +181518 |
| 4sealed | 491 | Severs, Shane (1518) | Won 2-0 | +181536 |
| 5sealed | 434 | Moosajee, Zafar (1540) | Won 2-1 | +181554 |
| 6sealed | 428 | McNeely, Aaron (1727) | Lost 0-2 | -151539 |
| 7sealed | 451 | Lytle, Tyler (1561) | Won 2-0 | +181557 |
| 8sealed | 444 | Koven, Robert (1621) | Won 2-1 | +191576 |
| 9sealed | 420 | Cleberg, Thomas (1630) | Draw 0-0 | +11577 |
| 10draft | 17 | Riggs, Aaron (1575) | Draw 1-1 | 01577 |
| 11draft | 21 | Napper, Josh (1500) | Lost 0-2 | -191558 |
| 12draft | 50 | Mitchell, Branson (1508) | Won 2-0 | +171575 |
| 13draft | 41 | Abrams, Matt (1664) | Won 2-0 | +201595 |
| 14draft | 45 | Adams, Tommy (1582) | Won 2-0 | +171612 |
| 15draft | 30 | Denney, Jonathan (1575) | Won 2-1 | +181630 |
| top | average opponent: 1565record: 10-3-2 | new rating: 1630 | ||
| Grand Prix Dallas 2007 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 182 | Suarez, Ruben R (1484) | Lost 0-2 | -181482 |
| 2extended | 214 | Ballard, Dj C (1482) | Won 2-1 | +181500 |
| 3extended | 179 | Echavarria, Carlos (1500) | Won 0-0 | +181518 |
| 4extended | 207 | Hawkins, John (1517) | Lost 0-2 | -181500 |
| top | average opponent: 1496record: 2-2 | new rating: 1500 | ||