Jung, David
Current rating: 1539
Record: 9-7
| Grand Prix Tampa Bay 2019 (modern) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 117 | Blaylock, Adam (1500) | Won 2-0 | +181521 |
| 2modern | 149 | Thompson, Dakota (1492) | Lost 1-2 | -191502 |
| 3modern | 321 | Marich, Eric (1547) | Lost 0-2 | -171485 |
| 4modern | 380 | Catrett, Zachary (1453) | Won 2-0 | +171502 |
| 5modern | 343 | Reed, Brian (1483) | Won 2-0 | +181520 |
| 6modern | 137 | Cole, J. (1472) | Won 2-0 | +171537 |
| 7modern | 114 | Strunk, Michael (1628) | Lost 1-2 | -161521 |
| 8modern | 139 | Stone, Garrot (1525) | Won 2-0 | +181539 |
| average opponent: 1512record: 5-3 | new rating: 1539 | |||
| Grand Prix Atlanta 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 193 | Koroghlian, Adam (1470) | Lost 0-2 | -191481 |
| 2modern | 366 | Pituk, Paul (1482) | Won 2-1 | +181499 |
| 3modern | 420 | Cummings, Caleb (1504) | Lost 1-2 | -171482 |
| 4modern | 551 | Han, Mark (1517) | Lost 1-2 | -181464 |
| 5modern | 609 | Balles, Ray (1448) | Won 2-0 | +181482 |
| 6modern | 512 | Elliott, Andrew (1571) | Won 2-0 | +201502 |
| 7modern | 430 | May, Trevor (1619) | Won 2-0 | +201522 |
| 8modern | 303 | Crews, Matt (1472) | Lost 1-2 | -191503 |
| average opponent: 1511record: 4-4 | new rating: 1503 | |||