Kovalcik, JR
Current rating: 1445
Record: 33-45-1
| Grand Prix New Jersey 2019 (RNA limited) | starting rating: 1427 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 81 | Malkie, Scott (1451) | Won 2-0 | +181445 |
| 2sealed | 190 | Robinson, Connor (1782) | Lost 0-2 | -121433 |
| 3sealed | 371 | Sweeney, Sean (1500) | Won 2-0 | +191452 |
| 4sealed | 289 | Van Doosselaere, Theo (1669) | Lost 0-2 | -141438 |
| 5sealed | 485 | Benson, Kyle (1483) | Lost 0-2 | -171421 |
| 6sealed | 482 | Blondon, William (1536) | Won 2-1 | +201441 |
| 7sealed | 354 | Troy, Ryan (1513) | Won 2-0 | +201461 |
| 8sealed | 230 | Stojak, Peter (1605) | Lost 0-2 | -161445 |
| top | average opponent: 1567record: 4-4 | new rating: 1445 | ||
| Grand Prix New Jersey 2017 (lim) (XLN limited) | starting rating: 1377 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 164 | Honkonen, Charles (1474) | Won 2-0 | +191396 |
| 2sealed | 80 | Deerwester, Isaac (1517) | Won 2-1 | +211417 |
| 3sealed | 22 | Jones, Travis (1553) | Won 2-0 | +201437 |
| 4sealed | 111 | Istfan, Raeef (1681) | Won 2-1 | +221459 |
| 5sealed | 66 | Kilby, Sean (1847) | Lost 1-2 | -111448 |
| 6sealed | 157 | Page, Veronica (1726) | Lost 0-2 | -131435 |
| 7sealed | 150 | Hand, Dylan (1631) | Won 2-0 | +221457 |
| 8sealed | 104 | Kichline, Josh (1585) | Lost 1-2 | -161441 |
| 9sealed | 147 | Durham, Christian (1545) | Won 2-1 | +201461 |
| 10draft | 32 | Paris, Andrew (1794) | Lost 0-2 | -121449 |
| 11draft | 99 | Davis, Andrew (1798) | Lost 1-2 | -121437 |
| 13draft | 142 | Yeh, Andy (1552) | Won 2-0 | +201457 |
| 14draft | 141 | Bresett, John (1699) | Lost 1-2 | -141443 |
| 15draft | 75 | Normandin, Katharine (1531) | Lost 1-2 | -161427 |
| top | average opponent: 1638record: 7-7 | new rating: 1427 | ||
| Grand Prix Washington DC 2017 (HOU standard) | starting rating: 1422 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 63 | Mikijanic, James (1500) | Lost 0-2 | -161406 |
| 2standard | 401 | Lafleur, Thomas (1470) | Lost 1-2 | -171389 |
| 3standard | 710 | Beach, LeMark (1396) | Won 2-0 | +181407 |
| 4standard | 608 | McDowell, Steven (1429) | Lost 0-2 | -181389 |
| 5standard | 662 | Tan, Timotheos (1461) | Won 2-0 | +201409 |
| 6standard | 626 | Kozlowski, Joe (1483) | Won 2-0 | +191428 |
| 7standard | 520 | Simpson, Jeremiah (1466) | Lost 1-2 | -171411 |
| 8standard | 503 | Duffy-Ledbetter, Lee (1503) | Lost 0-2 | -171394 |
| 9standard | 430 | Miller, Allen (1417) | Lost 1-2 | -171377 |
| top | average opponent: 1458record: 3-6 | new rating: 1377 | ||
| Grand Prix Toronto 2017 (HOU limited) | starting rating: 1415 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 83 | Nelson, Kyle (1561) | Lost 0-2 | -151400 |
| 2sealed | 418 | Pangman, Rob (1479) | Lost 0-2 | -171383 |
| 3sealed | 636 | Bakelaar, Nathaniel (1464) | Won 2-0 | +201403 |
| 4sealed | 551 | Brown, Jordan (1214) | Won 2-0 | +141417 |
| 5sealed | 349 | Fernandes, Jeffrey (1527) | Won 2-0 | +201437 |
| 6sealed | 205 | Scott, William (1390) | Lost 0-2 | -181419 |
| 7sealed | 335 | McDonald, Nolan (1450) | Won 2-0 | +181437 |
| 8sealed | 218 | Hobbs, Adam (1519) | Lost 0-2 | -161421 |
| 9sealed | 307 | Rudert, Cole (1503) | Draw 1-1 | +11422 |
| top | average opponent: 1456record: 4-4-1 | new rating: 1422 | ||
| Grand Prix Richmond 2017 (AKH limited) | starting rating: 1373 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 67 | Sancen, Alex (1480) | Lost 0-2 | -161357 |
| 2sealed | 419 | Sneed, Alex (1489) | Won 2-1 | +211378 |
| 3sealed | 406 | Rhoads, Brendan (1473) | Won 2-1 | +191397 |
| 4sealed | 268 | Styskal, Matthew (1637) | Won 2-1 | +231420 |
| 5sealed | 195 | Dungee, Dane (1572) | Lost 0-2 | -161404 |
| 6sealed | 365 | Smeltz, Jacob (1479) | Lost 0-2 | -161388 |
| 7sealed | 511 | McCarty, John (1562) | Won 2-0 | +211409 |
| 8sealed | 295 | Sheres, Evan (1579) | Lost 0-2 | -151394 |
| 9sealed | 410 | McClure, Micheal (1578) | Won 2-1 | +211415 |
| top | average opponent: 1539record: 5-4 | new rating: 1415 | ||
| Grand Prix Orlando 2017 (AER limited) | starting rating: 1395 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 908 | Johnston, Jason (1502) | Won 2-0 | +201415 |
| 2sealed | 568 | D'Adesky, Andrew (1585) | Won 2-0 | +211436 |
| 3sealed | 555 | Greenfield, Jake (1627) | Lost 1-2 | -151421 |
| 4sealed | 848 | Calabrese, Jared (1544) | Lost 0-2 | -151406 |
| 5sealed | 907 | Baldoza, Joseph Ryan (1518) | Lost 0-2 | -161390 |
| 6sealed | 998 | Church, Adam (1478) | Lost 1-2 | -171373 |
| top | average opponent: 1542record: 2-4 | new rating: 1373 | ||
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1444 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 550 | Effinger, Lauren (1518) | Lost 0-2 | -171427 |
| 3modern | 704 | Fields, Khyler (1518) | Lost 1-2 | -161411 |
| 4modern | 960 | Frank, Andrew (1525) | Lost 1-2 | -161395 |
| top | average opponent: 1520record: 0-3 | new rating: 1395 | ||
| Grand Prix Charlotte 2015 (modern) | starting rating: 1407 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 893 | Lemaster, Cameron (1526) | Won 2-1 | +201427 |
| 3modern | 853 | Kahla, Sam (1517) | Won 2-1 | +201447 |
| 4modern | 711 | Kastel, Chad (1921) | Lost 1-2 | -101437 |
| 5modern | 714 | Sears, Chris (1402) | Lost 0-2 | -191418 |
| 6modern | 761 | Bryson, Matthew (1530) | Won 2-0 | +201438 |
| 7modern | 653 | Hord, Chad (1552) | Won 2-0 | +201458 |
| 8modern | 633 | Turben, Eric (1653) | Lost 0-2 | -141444 |
| top | average opponent: 1586record: 4-3 | new rating: 1444 | ||
| Grand Prix Atlantic City 2015 (DTK limited) | starting rating: 1419 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 265 | Yeh, Andy (1483) | Won 2-1 | +201439 |
| 2sealed | 355 | Sica, Ugur (1481) | Won 2-1 | +181457 |
| 3sealed | 325 | Downing, Bruce (1475) | Won 2-0 | +191476 |
| 4sealed | 125 | Pogorzhelsky, Alessandro (1550) | Lost 1-2 | -171459 |
| 5sealed | 273 | Anderson, Travis (1489) | Lost 0-2 | -171442 |
| 6sealed | 354 | Davis, Joshua (1515) | Lost 1-2 | -171425 |
| 7sealed | 374 | Nugent, Sarah (1433) | Lost 0-2 | -181407 |
| top | average opponent: 1489record: 3-4 | new rating: 1407 | ||
| Grand Prix Baltimore 2014 (KTK limited) | starting rating: 1448 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 129 | Levine, Russ (1500) | Won 2-1 | +191467 |
| 4sealed | 110 | Wheaton, Bradford (1575) | Lost 0-2 | -161451 |
| 5sealed | 119 | Geyer, Pierson (1477) | Lost 1-2 | -181433 |
| 6sealed | 275 | Wang, Carson (1674) | Lost 1-2 | -141419 |
| top | average opponent: 1556record: 1-3 | new rating: 1419 | ||
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 202 | Russell, Justin (1629) | Lost 0-2 | -161484 |
| 2legacy | 513 | Barbarisi, Rory (1482) | Lost 1-2 | -181466 |
| 3legacy | 588 | Clarke, Brian (1431) | Lost 1-2 | -181448 |
| top | average opponent: 1514record: 0-3 | new rating: 1448 | ||