Gannon, Joseph
Current rating: 1544
| Grand Prix Portland 2018 (modern) | starting rating: 1550 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 197 | Jackson, David (1530) | Won 2-1 | +181568 |
| 2modern | 321 | Hiramoto, Brent (1452) | Won 2-1 | +161584 |
| 3modern | 190 | Hritz, Joseph (1485) | Won 2-1 | +161600 |
| 4modern | 57 | Brunson, Damyan (1681) | Lost 1-2 | -171583 |
| 5modern | 244 | Goldman, Joseph (1437) | Lost 0-2 | -201563 |
| 6modern | 420 | Hibbert, Paul (1519) | Lost 1-2 | -191544 |
| top | average opponent: 1517record: 3-3 | new rating: 1544 | ||
| Grand Prix Seattle 2018 (legacy) (legacy) | starting rating: 1541 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 226 | Gingrich, Jonathan (1449) | Won 2-0 | +161557 |
| 2legacy | 3 | Wong, Michael 281 (1747) | Won 2-0 | +221579 |
| 3legacy | 64 | Darcy, Michael (1572) | Won 2-0 | +181597 |
| 4legacy | 122 | Casey, Patrick (1568) | Lost 0-2 | -191578 |
| 5legacy | 184 | Brueseke, Benjamin (1781) | Lost 0-2 | -141564 |
| 6legacy | 464 | Doberne, David (1811) | Lost 0-2 | -141550 |
| top | average opponent: 1655record: 3-3 | new rating: 1550 | ||
| Grand Prix Portland 2017 (XLN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 367 | Kao, Austin (1513) | Draw 1-1 | 01500 |
| 2standard | 428 | Khan, Alec (1702) | Lost 0-2 | -141486 |
| 3standard | 663 | Allen, Kelli-Ann (1486) | Won 2-1 | +181504 |
| 4standard | 502 | Pavelchak, Drew (1565) | Draw 1-1 | +11505 |
| 5standard | 592 | Jones, Andrea (1485) | Draw 1-1 | 01505 |
| 6standard | 487 | Gillespie, Chris (1487) | Won 2-0 | +171522 |
| 7standard | 350 | Laforge, Adam (1442) | Won 2-1 | +171539 |
| 8standard | 362 | Conklin, Andrew (1524) | Won 2-0 | +181557 |
| 9standard | 244 | Knox, Nathaniel (1687) | Lost 0-2 | -161541 |
| top | average opponent: 1544record: 4-2-3 | new rating: 1541 | ||