Katz, Mark
Current rating: 1538
Record: 10-8-1
| Grand Prix San Jose 2017 (AER limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 520 | Torres, Richard (1467) | Won 2-0 | +171498 |
| 2sealed | 170 | Hartwick, Nolan (1521) | Lost 0-2 | -171481 |
| 3sealed | 604 | States, Sam (1533) | Won 2-1 | +191500 |
| 4sealed | 540 | Shen, John (1522) | Won 2-0 | +181518 |
| 5sealed | 111 | Jaeger, Tony (1349) | Won 2-1 | +151533 |
| 6sealed | 210 | Rentz, Matt (1554) | Draw 1-1 | +11534 |
| 7sealed | 148 | Curran, Brandon (1610) | Won 2-1 | +191553 |
| 8sealed | 86 | Lopez Ortega, Juan Manuel (1561) | Won 2-1 | +181571 |
| 9sealed | 47 | Stormoen, Steve (1514) | Won 2-1 | +171588 |
| 10draft | 126 | Torres, Michael (1625) | Lost 1-2 | -171571 |
| 11draft | 167 | Byrn, David (1656) | Lost 0-0 | -171554 |
| 12draft | 63 | Hu, Shengling (1649) | Lost 0-2 | -161538 |
| average opponent: 1547record: 7-4-1 | new rating: 1538 | |||
| Grand Prix Oakland 2016 (BFZ standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 211 | Mizzoni, Joel (1500) | Won 2-1 | +181518 |
| 2standard | 372 | Okeson, Shawn (1518) | Lost 0-2 | -181500 |
| 3standard | 642 | Bao, Kun (1483) | Lost 0-2 | -181482 |
| 4standard | 745 | Gurrola, Elliott (1482) | Lost 1-2 | -181464 |
| 5standard | 823 | Vannelli, Daniel (1412) | Won 2-0 | +171481 |
| 6standard | 671 | Luna, Jonathan (1482) | Won 2-1 | +181499 |
| 7standard | 591 | Emami, Armaun (1497) | Lost 1-2 | -181481 |
| average opponent: 1482record: 3-4 | new rating: 1481 | |||