Heath, Jonathan
Current rating: 1614
Record: 24-16-1
| Grand Prix Orlando 2017 (AER limited) | starting rating: 1600 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 755 | Lassen, Nicholas (1727) | Won 2-0 | +201620 |
| 2sealed | 792 | Herndon, Leslie (1518) | Won 2-0 | +161636 |
| 3sealed | 597 | Lacey, Curtis (1484) | Won 2-0 | +151651 |
| 4sealed | 566 | Trull, Jonathan (1626) | Won 2-0 | +181669 |
| 5sealed | 562 | Molesch, Max (1838) | Lost 0-2 | -151654 |
| 6sealed | 710 | Healy, John (1620) | Lost 0-2 | -191635 |
| 7sealed | 682 | Smith, Claude (1504) | Lost 0-2 | -201615 |
| 8sealed | 822 | Spartz, Gaby (1649) | Won 2-0 | +181633 |
| 9sealed | 789 | Farnsworth, Paul (1540) | Lost 1-2 | -191614 |
| top | average opponent: 1612record: 5-4 | new rating: 1614 | ||
| Grand Prix Atlanta 2016 (KLD limited) | starting rating: 1658 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 847 | Hughes, Eric (1454) | Won 2-0 | +151673 |
| 2sealed | 666 | Curry, Mack (1481) | Lost 1-2 | -221651 |
| 3sealed | 1022 | Qu, Brendon (1567) | Lost 0-2 | -191632 |
| 4sealed | 1096 | Patel, Karan (1543) | Won 2-0 | +161648 |
| 5sealed | 919 | Slone, William (1498) | Lost 1-2 | -211627 |
| 6sealed | 1109 | Capano, Frank (1391) | Won 2-1 | +141641 |
| 7sealed | 1000 | Tammen, Jonathan (1500) | Lost 0-2 | -201621 |
| 8sealed | 972 | Johnson, Patricia (1455) | Lost 0-2 | -211600 |
| top | average opponent: 1486record: 3-5 | new rating: 1600 | ||
| Grand Prix Atlanta 2015 (BFZ limited) | starting rating: 1552 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 186 | Morrow, Justin (1589) | Won 2-0 | +191571 |
| 2sealed | 40 | Webb, Kevin (1499) | Draw 1-1 | -21569 |
| 3sealed | 423 | Russ, Jason (1522) | Won 2-0 | +171586 |
| 4sealed | 232 | Barrientos, Daniel (1520) | Won 2-1 | +171603 |
| 5sealed | 123 | Maphis, James (1521) | Lost 0-2 | -191584 |
| 6sealed | 274 | Sandahl, Bryan (1532) | Won 2-0 | +171601 |
| 7sealed | 164 | Collins, Justin (1652) | Won 2-0 | +191620 |
| 8sealed | 102 | Kitchens, Ryan (1557) | Won 2-0 | +171637 |
| 9sealed | 55 | LeRoux, Colette (1661) | Won 2-0 | +181655 |
| 10draft | 71 | Clarke, Frederick (1645) | Won 2-1 | +181673 |
| 11draft | 110 | Schultz, Nathaniel (1636) | Won 2-0 | +171690 |
| 12draft | 8 | Pressley, Joseph (1687) | Lost 1-2 | -181672 |
| 13draft | 54 | Stirling, Brandt (1635) | Won 2-1 | +171689 |
| 14draft | 32 | Carpenter, Brad (1911) | Lost 1-2 | -141675 |
| 15draft | 8 | Ho, Lan (1722) | Lost 1-2 | -171658 |
| top | average opponent: 1619record: 10-4-1 | new rating: 1658 | ||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 192 | Martishius, Jake (1483) | Won 2-1 | +181518 |
| 2sealed | 236 | Dupine, Devin (1582) | Won 2-1 | +191537 |
| 3sealed | 204 | Tornga, Cavan (1406) | Won 2-1 | +161553 |
| 4sealed | 52 | Chan, Diana (1553) | Won 2-0 | +181571 |
| 5sealed | 1 | Hu, Shengling (1535) | Won 2-0 | +171588 |
| 6sealed | 11 | Villafana, Pablo B (1599) | Lost 1-2 | -181570 |
| 7sealed | 54 | Horn, Lee (1578) | Lost 0-2 | -181552 |
| 8sealed | 131 | Thompson, Nolan (1560) | Lost 0-2 | -181534 |
| 9sealed | 106 | Kopel, Kris (1513) | Won 2-1 | +181552 |
| top | average opponent: 1534record: 6-3 | new rating: 1552 | ||