Nicholson, Zack J
Current rating: 1509
Record: 13-13-1
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 41 | Gacioch, Daniel (1490) | Won 2-0 | +181523 |
| 2sealed | 495 | Blanton, Alexander (1518) | Won 2-1 | +181541 |
| 3sealed | 172 | Roman, Andrew (1605) | Draw 1-1 | +11542 |
| 4sealed | 251 | Littman, Fai (1747) | Lost 0-2 | -141528 |
| 5sealed | 412 | Mulvaney, Erik (1517) | Lost 1-2 | -191509 |
| top | average opponent: 1575record: 2-2-1 | new rating: 1509 | ||
| Grand Prix Toronto 2010 (SOM limited) | starting rating: 1526 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 553 | Benns, Brian (1541) | Lost 1-2 | -171509 |
| 2sealed | 567 | Chalkiadakis, Charidim (1515) | Won 2-0 | +181527 |
| 3sealed | 579 | Morton, Daniel (1465) | Lost 1-2 | -191508 |
| 4sealed | 595 | Winkworth, Jeff R (1448) | Won 2-1 | +171525 |
| 5sealed | 542 | Kutarna, William (1500) | Won 2-0 | +171542 |
| 6sealed | 497 | Casselman, Jeffrey (1518) | Won 2-1 | +181560 |
| 7sealed | 450 | Sturkol, Mark A (1541) | Lost 0-2 | -191541 |
| 8sealed | 414 | Martin, Nick A (1519) | Lost 0-2 | -181523 |
| 9sealed | 396 | Villamizar, Daniel (1536) | Lost 0-2 | -181505 |
| top | average opponent: 1509record: 4-5 | new rating: 1505 | ||
| Grand Prix Tampa 2009 (ZEN limited) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 49 | Noquieria, Jorge (1500) | Won 2-1 | +181519 |
| 2sealed | 9 | Newmyer, Lucas (1500) | Won 2-0 | +181537 |
| 3sealed | 132 | Ross, Tom (1820) | Lost 0-2 | -131524 |
| 4sealed | 269 | Schatzman, Robert (1520) | Lost 1-2 | -181506 |
| 5sealed | 253 | Smith, Michael (1519) | Lost 0-2 | -181488 |
| 6sealed | 270 | Berger, Eric (1601) | Lost 0-2 | -161472 |
| 7sealed | 223 | Holley, Joshua b (1462) | Won 2-0 | +181490 |
| 8sealed | 172 | Michels, Tim (1528) | Won 2-1 | +181508 |
| 9sealed | 143 | Miller, Casey 2 (1507) | Won 2-1 | +181526 |
| top | average opponent: 1551record: 5-4 | new rating: 1526 | ||
| Grand Prix Montreal 2007 (Time Spiral block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 5 | Lee, James C (1566) | Won 2-1 | +191519 |
| 2block | 134 | Spence, Zack (1518) | Lost 0-2 | -181501 |
| 3block | 193 | Burkuit, Kyle (1503) | Won 2-1 | +181519 |
| 4block | 216 | Lewis, Aaron (1507) | Lost 0-2 | -181501 |
| top | average opponent: 1523record: 2-2 | new rating: 1501 | ||