Zappia, Oliver
Current rating: 1568
| Grand Prix Toronto 2017 (HOU limited) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 30 | Cooper, Matthew [CAN] (1500) | Won 2-0 | +171570 |
| 2sealed | 95 | Biscione, Claudio (1733) | Lost 0-2 | -151555 |
| 3sealed | 397 | King, Markus (1500) | Lost 0-2 | -191536 |
| 4sealed | 562 | Mills, Jeremy (1456) | Won 2-1 | +161552 |
| 5sealed | 305 | Shea, Kevin (1536) | Won 2-0 | +181570 |
| 6sealed | 239 | Blancher, Scott (1504) | Lost 0-2 | -191551 |
| 7sealed | 391 | Tucker, Ryan (1511) | Won 2-1 | +171568 |
| 8sealed | 228 | Chernyak, Anthony (1574) | Won 2-1 | +181586 |
| 9sealed | 237 | Kiss, Roland (1614) | Lost 1-2 | -181568 |
| top | average opponent: 1548record: 5-4 | new rating: 1568 | ||
| Grand Prix Toronto 2016 (SOI standard) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 377 | Cooper, Adam [CAN] (1655) | Lost 1-2 | -151466 |
| 2standard | 516 | Paquette, Sean (1482) | Won 2-0 | +191485 |
| 3standard | 428 | Valenti, Philip (1503) | Won 2-1 | +181503 |
| 4standard | 203 | Timmings, Kimberley (1417) | Won 2-1 | +161519 |
| 5standard | 119 | Rubin, Benjamin (1912) | Won 2-0 | +251544 |
| 6standard | 124 | Beauchemin, Samuel (1657) | Won 2-1 | +201564 |
| 7standard | 70 | Helguero, Marcos (1610) | Won 2-1 | +191583 |
| 8standard | 38 | Gordillo, Massimo (1654) | Lost 0-2 | -171566 |
| 9standard | 100 | Finch, Matt (1487) | Won 2-1 | +171583 |
| 10standard | 82 | Tosello, Anthony (1561) | Lost 0-2 | -181565 |
| 11standard | 96 | Nightingale, Tyler (1767) | Lost 0-2 | -151550 |
| 12standard | 172 | Wasson, John (1682) | Won 2-1 | +211571 |
| 13standard | 88 | Goodine, Tim (1558) | Lost 1-2 | -191552 |
| 14standard | 130 | Bullock, Josh (1553) | Won 2-1 | +181570 |
| 15standard | 118 | Abraham, Ryan (1580) | Lost 1-2 | -171553 |
| top | average opponent: 1605record: 9-6 | new rating: 1553 | ||
| Grand Prix Ottawa 2014 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 293 | Andrews, Theo (1500) | Lost 1-2 | -181482 |
| 2sealed | 459 | Ramnarine, Brian (1466) | Won 2-1 | +181500 |
| 3sealed | 449 | Jensen, Christine (1499) | Won 2-0 | +181518 |
| 4sealed | 231 | Grenier, Melissa (1493) | Won 2-0 | +171535 |
| 5sealed | 161 | Vincent, Dominic (1560) | Lost 1-2 | -171518 |
| 6sealed | 337 | Sacino, Joey (1492) | Lost 0-2 | -191499 |
| 7sealed | 295 | Watson, Thomas (1499) | Lost 0-2 | -181481 |
| top | average opponent: 1501record: 3-4 | new rating: 1481 | ||