Addison, Stephen J
Current rating: 1515
| Grand Prix Columbus 2012 (modern) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 121 | Montanaro Jr, William (1482) | Lost 0-2 | -191519 |
| 2modern | 291 | Leveille, Tom (1503) | Won 2-0 | +171536 |
| 3modern | 286 | Knepple, Ezekieo J (1500) | Lost 1-2 | -181518 |
| 4modern | 437 | Lucas, Matt (1470) | Won 2-1 | +171535 |
| 5modern | 264 | MANTI, JARROD (1447) | Lost 0-2 | -201515 |
| top | average opponent: 1480record: 2-3 | new rating: 1515 | ||
| Grand Prix Columbus 2010 (legacy) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 493 | Trame, David (1500) | Won 2-0 | +181538 |
| 2legacy | 509 | Izzo, Anthony (1585) | Lost 1-2 | -171521 |
| 3legacy | 611 | Inlow, Sean (1598) | Lost 0-2 | -171504 |
| 4legacy | 615 | Ruffalo, Vince (1466) | Won 2-0 | +171521 |
| 5legacy | 556 | Richardson, Samuel (1502) | Won 2-0 | +181539 |
| 6legacy | 533 | West, Danny (1506) | Won 2-0 | +171556 |
| 7legacy | 502 | Fitzgerald, David A (1517) | Lost 1-2 | -181538 |
| top | average opponent: 1525record: 4-3 | new rating: 1538 | ||
| Grand Prix Chicago 2009 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 257 | Fortin, Eric S (1500) | Won 2-0 | +181518 |
| 2legacy | 207 | Benson, John (1511) | Lost 1-2 | -181500 |
| 3legacy | 278 | King, James (1418) | Won 2-0 | +161516 |
| 4legacy | 175 | Lynnet, Ben (1508) | Won 2-1 | +181534 |
| 5legacy | 179 | Kammer, Michael (1693) | Lost 0-2 | -151519 |
| 6legacy | 220 | Beasley, Orrin (1619) | Lost 0-2 | -161503 |
| 7legacy | 298 | Dillon, Steve E (1499) | Won 2-1 | +181521 |
| 8legacy | 202 | Steiner, Ben (1503) | Won 2-0 | +181539 |
| 9legacy | 157 | Baker, Luke (1518) | Lost 1-2 | -191520 |
| top | average opponent: 1530record: 5-4 | new rating: 1520 | ||