O'Connor, Jacob
Current rating: 1483
Record: 6-8-1 (GP) / 3-4 (professional)
| 2020 Mythic Invitational (MTGA historic) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1historic | 59 | Hasanov, Renat (1500) | Won 2-1 | +181501 |
| 2historic | 5 | Muller, Ronald (1713) | Lost 1-2 | -141487 |
| 3historic | 25 | Guillem Lloret, Victor (1509) | Lost 0-2 | -181469 |
| 4historic | 46 | Estephan, Jessica (1593) | Won 2-1 | +201489 |
| 5historic | 30 | Libert, Julien (1600) | Won 2-0 | +201509 |
| 6historic | 36 | Steinberg, David (1619) | Lost 0-2 | -161493 |
| 7historic | 48 | Vos, Brent (1943) | Lost 1-2 | -101483 |
| top | average opponent: 1639record: 3-4 | new rating: 1483 | ||
| Grand Prix New Jersey 2020 (THB limited) | starting rating: 1477 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 287 | Forscht, Christopher (1469) | Won 2-1 | +181495 |
| 2sealed | 185 | Dixon, Robert (1633) | Lost 0-2 | -151480 |
| 3sealed | 444 | Hernandez, Carlos (1544) | Won 2-0 | +191499 |
| 4sealed | 231 | Quirke, Ethan (1526) | Lost 0-2 | -181481 |
| 5sealed | 453 | Prieto, Danilo (1437) | Won 2-1 | +171498 |
| 6sealed | 353 | Guevara, Franz (1623) | Lost 1-2 | -151483 |
| top | average opponent: 1539record: 3-3 | new rating: 1483 | ||
| Grand Prix Hartford 2018 (modern) | starting rating: 1489 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 552 | Rowe, Sean (1449) | Lost 0-2 | -181471 |
| 2modern | 663 | Price, Brandon (1648) | Won 2-0 | +211492 |
| 3modern | 407 | Daly, Pearse (1500) | Lost 1-2 | -181474 |
| 4modern | 713 | Roucoulet, Jeffrey (1656) | Draw 1-1 | +31477 |
| top | average opponent: 1563record: 1-2-1 | new rating: 1477 | ||
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 380 | Murch, Andrew (1784) | Won 2-0 | +231523 |
| 4modern | 297 | Johnson, Marcus (1482) | Lost 1-2 | -191504 |
| 5modern | 2125 | Bishop, Jesse (1575) | Won 2-1 | +201524 |
| 6modern | 377 | Marling, Alan (1726) | Lost 0-2 | -151509 |
| 7modern | 363 | Tolson, Robert (1400) | Lost 0-2 | -201489 |
| top | average opponent: 1593record: 2-3 | new rating: 1489 | ||