Kostner, Kelly
Current rating: 1562
Record: 20-17-1
| Grand Prix Orlando 2018 (M19 standard) | starting rating: 1555 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 6 | Ellis, Christopher (1478) | Won 2-1 | +161571 |
| 2standard | 89 | Brady, Patrick (1558) | Won 2-0 | +181589 |
| 3standard | 207 | Baldin, Gregor (1492) | Lost 1-2 | -201569 |
| 4standard | 288 | Bowman, Elijah (1523) | Lost 1-2 | -181551 |
| 5standard | 242 | Lavandier, Erick (1357) | Won 2-1 | +141565 |
| 6standard | 108 | Cafaro, Tom (1464) | Won 2-0 | +161581 |
| 7standard | 153 | Shockley, Ronald (1531) | Lost 1-2 | -191562 |
| top | average opponent: 1486record: 4-3 | new rating: 1562 | ||
| Grand Prix Orlando 2017 (AER limited) | starting rating: 1535 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 643 | Lyons, Zachary (1500) | Won 2-0 | +171552 |
| 2sealed | 753 | Freeman, Michael (1597) | Lost 0-2 | -171535 |
| 3sealed | 968 | Thompson, Eric (1475) | Won 2-0 | +171552 |
| 4sealed | 750 | Ero, Tyrone (1521) | Won 2-0 | +171569 |
| 5sealed | 644 | Keddell, Peter (1500) | Lost 1-2 | -191550 |
| 6sealed | 821 | Pace, Stanley (1486) | Won 2-0 | +171567 |
| 7sealed | 737 | Weltback, Jonathan (1536) | Won 2-0 | +171584 |
| 8sealed | 644 | Holliday, John (1581) | Lost 1-2 | -181566 |
| 9sealed | 698 | Severson, Eric (1916) | Won 2-0 | +241590 |
| 10draft | 742 | Staehling, Michael (1567) | Lost 1-2 | -181572 |
| 12draft | 771 | Miller, Andrew (1627) | Lost 0-2 | -171555 |
| top | average opponent: 1573record: 6-5 | new rating: 1555 | ||
| Grand Prix Miami 2015 (FRF standard) | starting rating: 1531 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 201 | Vera, Jonathan (1524) | Won 2-0 | +181549 |
| 3standard | 34 | Keith, Michael (1485) | Lost 1-2 | -201529 |
| 4standard | 193 | Gottlieb, Justin (1710) | Won 2-1 | +221551 |
| 5standard | 183 | McGovern, Clint (1628) | Won 2-0 | +191570 |
| 6standard | 62 | Armstrong, Timothy (1619) | Lost 0-2 | -171553 |
| 7standard | 202 | Kruse, Nathen W (1529) | Lost 0-2 | -181535 |
| top | average opponent: 1582record: 3-3 | new rating: 1535 | ||
| Grand Prix Orlando 2014 (KTK limited) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 121 | Blair, Alex (1524) | Lost 1-2 | -171487 |
| 3sealed | 348 | Spasaro, Nathan (1421) | Won 2-1 | +171504 |
| 4sealed | 262 | Dennison, Adam (1518) | Won 2-0 | +181522 |
| 5sealed | 128 | Zucoloto, Gianfranco (1538) | Won 2-0 | +181540 |
| 6sealed | 106 | Kemple, Christopher (1680) | Won 2-1 | +211561 |
| 7sealed | 34 | Erwin, Evan (1703) | Lost 1-2 | -161545 |
| 8sealed | 116 | Murdock, Charley (1738) | Lost 0-2 | -141531 |
| top | average opponent: 1589record: 4-3 | new rating: 1531 | ||
| Grand Prix Miami 2013 (DGM standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 229 | Nestico, Mark (1594) | Draw 1-1 | +21502 |
| 3standard | 196 | Yakell, Robert (1518) | Won 2-1 | +181520 |
| 4standard | 179 | Tharmaratnam, Samuel (1793) | Lost 0-2 | -131507 |
| 5standard | 289 | David, Joshua (1501) | Lost 0-2 | -181489 |
| 6standard | 368 | Lamb, William J (1368) | Won 2-0 | +161505 |
| 7standard | 273 | Lopez, Rollo (1516) | Won 2-0 | +181523 |
| 8standard | 190 | Riley, Ryan (1502) | Lost 1-2 | -191504 |
| top | average opponent: 1542record: 3-3-1 | new rating: 1504 | ||