Morelli Zeller, Roger John
Current rating: 1460
Record: 3-6-3
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1431 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 859 | Bradley, Marcus (1471) | Won 2-1 | +191450 |
| 2modern | 250 | McManis, Ellen (1486) | Lost 1-2 | -171433 |
| 3modern | 1069 | Franczak, John (1529) | Won 2-1 | +191452 |
| 4modern | 649 | Lott, Ryan (1457) | Won 2-0 | +191471 |
| 5modern | 307 | Behr, Bryan (1610) | Draw 1-1 | +21473 |
| 6modern | 356 | Carpenter, Justin (1535) | Lost 1-2 | -171456 |
| 7modern | 552 | Crump, Eric (1693) | Draw 1-1 | +41460 |
| average opponent: 1540record: 3-2-2 | new rating: 1460 | |||
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 893 | Cogliati, Chris (1601) | Lost 0-2 | -161484 |
| 2legacy | 1209 | Brown, J. Aaron (1482) | Draw 0-0 | 01484 |
| 3legacy | 1259 | Krishnasamy, Kiran (1482) | Lost 0-2 | -181466 |
| 4legacy | 1291 | Schreiber, Marc (1555) | Lost 0-1 | -171449 |
| 5legacy | 1097 | Ventriglia, Eric (1446) | Lost 0-2 | -181431 |
| average opponent: 1513record: 0-4-1 | new rating: 1431 | |||