Marcus, Ethan
Current rating: 1534
Record: 7-6
| Grand Prix San Diego 2015 (ORI standard) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 374 | Bakken, Joshua (1500) | Won 2-1 | +191481 |
| 2standard | 49 | Gibson, Jack (1502) | Won 2-1 | +181499 |
| 3standard | 9 | Ioerger, Roderick (1561) | Won 2-1 | +191518 |
| 4standard | 120 | Duke, Reid (1970) | Lost 0-2 | -101508 |
| 5standard | 192 | Cheon, Paul (1968) | Won 2-1 | +261534 |
| 6standard | 149 | Miller, Sean (1515) | Lost 1-2 | -191515 |
| 7standard | 258 | North, Tyler (1536) | Lost 1-2 | -171498 |
| 8standard | 251 | Berry, Chelsy (1518) | Won 2-0 | +181516 |
| 9standard | 149 | Muldoon, Jesse (1494) | Won 2-1 | +181534 |
| average opponent: 1618record: 6-3 | new rating: 1534 | |||
| Grand Prix Los Angeles 2014 (KTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 214 | Schultz, Brian (1500) | Lost 0-2 | -181482 |
| 2standard | 531 | McAlpine, Daniel (1482) | Lost 1-2 | -181464 |
| 3standard | 777 | Reed, Ja (1464) | Lost 1-2 | -181446 |
| 4standard | 784 | Nix, Devin (1330) | Won 2-1 | +161462 |
| average opponent: 1444record: 1-3 | new rating: 1462 | |||