O'Neil, Sean
Current rating: 1453
Record: 3-5 (GP) / 2-4 (professional)
| Pro Tour Nagoya 2011 (Scars block) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 12 | Pham, Daniel (1625) | Won 2-1 | +211484 |
| 2block | 74 | Neeman, Jeremy (1907) | Lost 1-2 | -111473 |
| 3block | 89 | Grafensteiner, Daniel (1895) | Lost 1-2 | -101463 |
| 4block | 138 | Sierra, Diego (1494) | Won 2-1 | +181481 |
| 5block | 123 | Valenti, Christian (1757) | Lost 0-2 | -131468 |
| 6draft | 179 | Murakami, Kazuya3837 (1610) | Lost 0-2 | -151453 |
| top | average opponent: 1715record: 2-4 | new rating: 1453 | ||
| Grand Prix Yokohama 2010 (extended) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 226 | Matsushima, Yuuya (1478) | Lost 0-2 | -181463 |
| top | record: 0-1 | new rating: 1463 | ||
| Grand Prix Shizuoka 2008 (MOR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 252 | Kikkawa, Takayuki (1465) | Lost 0-2 | -191481 |
| 2standard | 355 | Takahashi, Teruyuki (1482) | Won 2-0 | +181499 |
| 3standard | 242 | Imai, Toshitsugu (1500) | Won 2-0 | +181517 |
| 4standard | 220 | Takekoshi, Kouhei (1517) | Won 2-0 | +181535 |
| 5standard | 87 | Ohige, Tatsuya (1504) | Lost 0-2 | -181517 |
| 6standard | 136 | Ishibashi, Satoshi (1567) | Lost 0-2 | -171500 |
| 7standard | 69 | Narisawa, Masahiro (1471) | Lost 0-2 | -191481 |
| top | average opponent: 1501record: 3-4 | new rating: 1481 | ||