O'Higgins, Tadhg
Current rating: 1504
Record: 13-14-1
| Grand Prix San Jose 2017 (AER limited) | starting rating: 1491 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 257 | Harper, Travis (1542) | Won 2-0 | +191510 |
| 2sealed | 383 | Kimminau, Riley (1666) | Lost 0-2 | -151495 |
| 3sealed | 742 | Pargh, David (1846) | Lost 0-2 | -121483 |
| 4sealed | 646 | Badong, Jeffry (1544) | Won 2-0 | +191502 |
| 5sealed | 469 | Bauer, John (1557) | Won 2-0 | +191521 |
| 6sealed | 274 | Gomez, Niko (1579) | Lost 0-2 | -171504 |
| top | average opponent: 1622record: 3-3 | new rating: 1504 | ||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1490 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 235 | Baena Castano, Guiller (1500) | Won 2-1 | +191509 |
| 2sealed | 93 | Muller, Brian (1518) | Lost 0-2 | -181491 |
| 3sealed | 247 | Hartglass, David (1500) | Won 2-1 | +181509 |
| 4sealed | 191 | Kirkpatrick, Killian (1502) | Won 2-0 | +181527 |
| 5sealed | 119 | Warren, Joshua (1566) | Lost 1-2 | -171510 |
| 6sealed | 211 | Blue, Nolan (1480) | Lost 0-2 | -191491 |
| top | average opponent: 1511record: 3-3 | new rating: 1491 | ||
| Grand Prix Portland 2010 (M11 limited) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 74 | Buckridge, Guy (1500) | Lost 1-2 | -181450 |
| 2sealed | 450 | Hardesty, Trent (1482) | Won 2-0 | +191469 |
| 3sealed | 214 | Nehring, Brett (1517) | Won 2-0 | +191488 |
| 4sealed | 159 | Maros, Leonardo (1518) | Lost 1-2 | -181470 |
| 5sealed | 448 | Vollendorf, David (1500) | Won 2-1 | +191489 |
| 6sealed | 250 | Nichols, Ken (1582) | Draw 1-1 | +11490 |
| top | average opponent: 1516record: 3-2-1 | new rating: 1490 | ||
| Grand Prix Oakland 2004 (DST limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 26 | Schuler, Matthew (1500) | Lost 1-2 | -171447 |
| 2sealed | 114 | Cao, Dat (1482) | Lost 0-2 | -181429 |
| 3sealed | 160 | Ennis, Antonio (1464) | Won 2-0 | +191448 |
| 4sealed | 159 | Pinion, Bill (1452) | Won 2-0 | +181466 |
| 5sealed | 151 | Shelley, Armand (1499) | Won 2-0 | +191485 |
| 6sealed | 77 | Wang, Michael (1534) | Lost 0-2 | -171468 |
| top | average opponent: 1488record: 3-3 | new rating: 1468 | ||
| Grand Prix Las Vegas 2001 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 38 | Doshi, Vishvas (1544) | Won 2-0 | +191519 |
| 2extended | 68 | Doremus, Wayland (1500) | Lost 0-1 | -191500 |
| 3extended | 150 | Williams, Joseph (1500) | Lost 0-2 | -181482 |
| 4extended | 182 | Trussell, Jasper (1465) | Lost 1-2 | -181464 |
| top | average opponent: 1502record: 1-3 | new rating: 1464 | ||