Yunker, Jon
Current rating: 1404
Record: 13-21
| Grand Prix Las Vegas 2019 (limited) (MH1 limited) | starting rating: 1411 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 182 | Friedland, Eric (1500) | Won 2-1 | +201431 |
| 2sealed | 52 | Sheftel, Alex (1841) | Lost 0-2 | -111420 |
| 3sealed | 363 | Riggs, Paul (1504) | Lost 0-2 | -161404 |
| top | average opponent: 1615record: 1-2 | new rating: 1404 | ||
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1372 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 552 | Ishikawa, Eric (1500) | Lost 1-2 | -151357 |
| 2sealed | 555 | Jasso, Alexis (1509) | Won 2-0 | +201377 |
| 3sealed | 701 | Wallace, Paul (1427) | Won 2-0 | +191396 |
| 4sealed | 700 | Reinecke, David (1446) | Won 2-1 | +191415 |
| 5sealed | 423 | Guan, Thomas Zhennan (1609) | Lost 1-2 | -141401 |
| 6sealed | 661 | Leeb, Spencer (1520) | Won 2-0 | +201421 |
| 7sealed | 427 | Ferry, Sergio (1644) | Lost 0-2 | -141407 |
| 8sealed | 467 | Fisk, David (1520) | Won 2-1 | +201427 |
| 9sealed | 344 | Houvener, Austin (1567) | Lost 1-2 | -161411 |
| top | average opponent: 1527record: 5-4 | new rating: 1411 | ||
| Grand Prix Las Vegas 2015 (2) (MM2 limited) | starting rating: 1401 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 140 | Cave, Eric (1500) | Lost 0-2 | -161385 |
| 2sealed | 428 | Sanchez, Gerardo (1500) | Lost 1-2 | -161369 |
| 3sealed | 564 | Ford, Ian (1464) | Won 2-0 | +201389 |
| 4sealed | 444 | Fletcher, Tabitha (1480) | Lost 0-2 | -171372 |
| top | average opponent: 1486record: 1-3 | new rating: 1372 | ||
| Grand Prix Baltimore 2014 (KTK limited) | starting rating: 1412 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 140 | Pickett, Kevin (1500) | Lost 1-2 | -171395 |
| 2sealed | 303 | Mohr, William (1500) | Lost 1-2 | -161379 |
| 3sealed | 519 | Lawver, Daniel (1580) | Won 2-0 | +221401 |
| top | average opponent: 1527record: 1-2 | new rating: 1401 | ||
| Grand Prix Washington DC 2014 (JOU limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 458 | Potts, John (1486) | Lost 0-2 | -181463 |
| 2sealed | 394 | Muller, Chris (1548) | Lost 1-2 | -171446 |
| 3sealed | 620 | Rama, Keval (1463) | Won 2-1 | +191465 |
| 4sealed | 493 | Washock, Joshua (1483) | Lost 0-2 | -181447 |
| 5sealed | 518 | Thomas, Elijah (1469) | Lost 1-2 | -181429 |
| 6sealed | 455 | Cavalcanti, Eduardo (1447) | Lost 0-2 | -171412 |
| top | average opponent: 1483record: 1-5 | new rating: 1412 | ||
| Grand Prix Philadelphia 2014 (BNG limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 417 | Jones, Brandon (1518) | Lost 1-2 | -181482 |
| 2sealed | 687 | Ashley, Brandon (1464) | Lost 0-2 | -181464 |
| 3sealed | 768 | Quinn, John (1431) | Lost 1-2 | -191445 |
| 4sealed | 798 | Owens, Charles (1447) | Won 2-0 | +181463 |
| 5sealed | 682 | Pham, Andrew (1428) | Won 2-1 | +181481 |
| 6sealed | 528 | Misiaszek, Michael (1495) | Lost 1-2 | -181463 |
| 7sealed | 485 | Price, Joshua (1470) | Won 2-0 | +181481 |
| 8sealed | 349 | Erikson, Matt (1488) | Won 0-0 | +181499 |
| 9sealed | 278 | Cortez, Yvonne (1472) | Lost 0-2 | -181481 |
| top | average opponent: 1468record: 4-5 | new rating: 1481 | ||