Locken, John
Current rating: 1598
Record: 9-6
| Grand Prix Washington DC 2019 (MH1 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 128 | Lee, Benjamin (1489) | Won 2-1 | +181518 |
| 2sealed | 243 | Hu, Leon (1547) | Won 0-0 | +181536 |
| 3sealed | 53 | Sun, Allen (1646) | Won 2-1 | +201556 |
| 4sealed | 11 | Brown, Paul (1637) | Won 2-0 | +201576 |
| 5sealed | 36 | Mulholland, Matt (1763) | Won 2-0 | +211597 |
| 6sealed | 13 | Neal, Stephen (1979) | Won 2-1 | +251622 |
| 7sealed | 15 | Yin, Brian (1754) | Lost 0-2 | -161606 |
| 8sealed | 23 | Zimmerman, Nathan (1819) | Lost 1-2 | -141592 |
| 9sealed | 108 | Beniamino, David (1630) | Won 2-0 | +191611 |
| 10draft | 58 | Michaels, Lucas (1841) | Lost 1-2 | -141597 |
| 11draft | 53 | Handy, Carmen (1734) | Won 2-0 | +201617 |
| 12draft | 53 | Garcia Rosas, Jose Daniel (1995) | Lost 0-2 | -111606 |
| 13draft | 54 | Tsang, Gabriel (1939) | Lost 0-2 | -121594 |
| 14draft | 38 | Bova, Justin (1617) | Won 2-0 | +181612 |
| 15draft | 46 | Black, Samuel (1832) | Lost 1-2 | -141598 |
| average opponent: 1748record: 9-6 | new rating: 1598 | |||