Hernandez, Jonathan
Current rating: 1548
Record: 21-19-3
| Grand Prix Las Vegas 2019 (modern) (modern) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 221 | Rutherford, Brad (1683) | Won 2-1 | +211523 |
| 2modern | 43 | Kirschenmann, Samuel (1490) | Lost 0-2 | -181505 |
| 3modern | 585 | Benetti, Dominic (1469) | Draw 1-1 | -11504 |
| 4modern | 557 | Ortiz, Michael (1588) | Won 2-0 | +201524 |
| 5modern | 388 | Scarlett, Kevin (1524) | Draw 0-0 | 01524 |
| 6modern | 519 | Ng, Eugene (1527) | Won 2-0 | +181542 |
| 7modern | 369 | Boon, Colin (1626) | Won 2-0 | +191561 |
| 8modern | 407 | Sheftel, Alex (1828) | Lost 1-2 | -131548 |
| top | average opponent: 1592record: 4-2-2 | new rating: 1548 | ||
| Grand Prix Phoenix 2018 (modern) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 264 | Irvine, Ethan (1500) | Lost 0-2 | -181503 |
| 2modern | 502 | Miller, Joshua (1493) | Won 2-1 | +181521 |
| 3modern | 412 | Davila, Gilbert (1671) | Lost 1-2 | -161505 |
| 4modern | 497 | Nuccio, John (1464) | Won 2-1 | +181523 |
| 5modern | 412 | Lisko, Nathan (1378) | Lost 0-2 | -211502 |
| top | average opponent: 1501record: 2-3 | new rating: 1502 | ||
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1587 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 434 | Nguyen, Chris (1426) | Lost 1-2 | -211566 |
| 2modern | 704 | Mariscal, Christopher (1461) | Lost 1-2 | -201546 |
| 3modern | 1365 | Copper, Paul (1465) | Lost 1-2 | -191527 |
| 4modern | 1425 | Pepper, Lindsay (1348) | Won 2-1 | +151542 |
| 5modern | 1291 | Wang, Wenjuan (1409) | Lost 0-2 | -211521 |
| top | average opponent: 1422record: 1-4 | new rating: 1521 | ||
| Grand Prix Lisbon 2002 (extended) | starting rating: 1493 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 149 | Pessoa, Ivo (1518) | Won 2-1 | +191512 |
| 2extended | 137 | Martins, Filipe (1518) | Won 2-1 | +181530 |
| 3extended | 10 | Pascoli, Mario (1576) | Won 2-0 | +191549 |
| 4extended | 47 | Anselmo, Pedro (1555) | Won 2-0 | +181567 |
| 5extended | 23 | Braga, Alexandre (1593) | Won 2-0 | +181585 |
| 6extended | 1 | Saavedra, Roberto (1526) | Lost 0-2 | -191566 |
| 7extended | 33 | Palomares, Eduardo (1570) | Won 2-1 | +181584 |
| 8extended | 16 | Manteigueiro, Hugo (1589) | Draw 1-1 | 01584 |
| 9extended | 22 | Carvalho, Marcio (1663) | Lost 1-2 | -161568 |
| 10extended | 28 | Marguenda, Pedro (1529) | Lost 0-2 | -191549 |
| 11extended | 26 | Caseiro, Rodrigo (1561) | Won 2-1 | +181567 |
| 12extended | 21 | Felix, Helio (1670) | Lost 0-2 | -161551 |
| 13extended | 25 | Beduzzi, David (1588) | Won 2-0 | +191570 |
| 14extended | 23 | Candido, Joao (1536) | Won 2-0 | +171587 |
| top | average opponent: 1571record: 9-4-1 | new rating: 1587 | ||
| Grand Prix Biarritz 2001 (ODY limited) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 110 | Andres, Oscar (1500) | Won 2-1 | +191465 |
| 2sealed | 106 | Alvarez Leoni, Omar (1675) | Lost 0-2 | -141451 |
| 3sealed | 94 | Salas Martinez, Sergio (1501) | Lost 1-2 | -171434 |
| 4sealed | 186 | Bigot de la Touanne, Martin (1481) | Won 2-0 | +191453 |
| 5sealed | 154 | Sanchez, Jose Carlos [ESP] (1484) | Won 2-1 | +181471 |
| 6sealed | 102 | Veron, Mathias (1504) | Lost 0-2 | -171454 |
| 7sealed | 145 | Rodriguez, Manuel (1613) | Won 2-1 | +211475 |
| 8sealed | 118 | Herrero, Sergi (1519) | Won 2-1 | +181493 |
| top | average opponent: 1534record: 5-3 | new rating: 1493 | ||
| Grand Prix Barcelona 1999 (USG sealed) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 146 | Lopez, Juan (1500) | Lost 0-0 | -181482 |
| 3sealed | 170 | Bernabeu-Edo, Jesus (1482) | Lost 0-0 | -181464 |
| 4sealed | 180 | Pujol, Angel (1464) | Lost 0-0 | -181446 |
| top | average opponent: 1482record: 0-3 | new rating: 1446 | ||