O'Neill, Chris
Current rating: 1506
Record: 33-40-3 (GP) / 3-5 (professional)
Grand Prix Las Vegas 2013Grand Prix Sacramento 2014Grand Prix San Diego 2015Grand Prix Oakland 2016Grand Prix Los Angeles 2016Pro Tour KaladeshGrand Prix San Jose 2017Grand Prix Las Vegas 2017 (legacy)Grand Prix Las Vegas 2017 (limited)Grand Prix Las Vegas 2017 (modern)Grand Prix Las Vegas 2018 (limited)Grand Prix Sacramento 2018Regional Championships Atlanta 2023
| Regional Championships Atlanta 2023 (pioneer) | starting rating: 1561 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 324 | Carpenter, Brandon (1531) | Lost 1-2 | -191542 |
| 2pioneer | 565 | Hill, Robert (1480) | Won 2-1 | +171559 |
| 3pioneer | 261 | Normandin, Ryan (1630) | Lost 0-2 | -171542 |
| 4pioneer | 506 | Grinberg, Avi (1595) | Lost 0-2 | -171525 |
| 5pioneer | 540 | Gorz, Philip (1424) | Lost 0-2 | -191506 |
| top | average opponent: 1532record: 1-4 | new rating: 1506 | ||
| Grand Prix Sacramento 2018 (M19 limited) | starting rating: 1441 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 157 | Heinan, Tom (1518) | Won 2-0 | +201461 |
| 3sealed | 39 | Bartolome, Joseph (1650) | Won 2-1 | +211482 |
| 4sealed | 12 | McIndoe, Robert (1635) | Won 2-0 | +211503 |
| 5sealed | 26 | Mandelblatt, Zach (2024) | Lost 0-2 | -101493 |
| 6sealed | 167 | Nickel, Matthew (1569) | Lost 1-2 | -161477 |
| 7sealed | 209 | Hatch, Gregory (1700) | Won 2-1 | +221499 |
| 8sealed | 98 | Son, Steven (1722) | Won 2-0 | +221521 |
| 9sealed | 58 | Woodward, Warren (1780) | Won 2-0 | +221543 |
| 10draft | 114 | Martinez, Axel (1975) | Lost 0-2 | -101533 |
| 11draft | 13 | Ma, Yuchen (1564) | Won 2-0 | +181551 |
| 12draft | 38 | Yang, Zizhuang (1785) | Lost 0-2 | -131538 |
| 13draft | 55 | Hixson, Jeremy (1617) | Won 2-0 | +191557 |
| 14draft | 15 | Rodrigues, Dante (1551) | Won 2-0 | +181575 |
| 15draft | 15 | Leng, Phaly (1790) | Lost 0-2 | -141561 |
| top | average opponent: 1706record: 9-5 | new rating: 1561 | ||
| Grand Prix Las Vegas 2018 (limited) (DOM limited) | starting rating: 1458 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 72 | Fenseca, Oscar (1516) | Lost 0-2 | -171441 |
| top | record: 0-1 | new rating: 1441 | ||
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 240 | Hanson, Brandon (1484) | Lost 0-2 | -181463 |
| 3modern | 1241 | Rude, Benjamin (1500) | Won 2-0 | +191482 |
| 4modern | 959 | Bernabe, Sandro (1734) | Lost 0-2 | -131469 |
| 5modern | 923 | Lang, Justin (1522) | Won 2-1 | +191488 |
| 6modern | 686 | Ruiz, Matthew (1283) | Lost 0-2 | -221466 |
| 7modern | 959 | Bingham, Rob (1588) | Won 2-0 | +201486 |
| 8modern | 576 | Walter, Andy (1550) | Lost 0-2 | -171469 |
| 9modern | 644 | Zaczek, Jonathon (1864) | Lost 0-2 | -111458 |
| top | average opponent: 1566record: 3-5 | new rating: 1458 | ||
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1506 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 451 | Sato, Todd (1453) | Won 2-0 | +171523 |
| 3sealed | 538 | Markeson, Scott (1998) | Lost 1-2 | -101513 |
| 4sealed | 658 | Johnson, Erik (1572) | Lost 0-2 | -171496 |
| 5sealed | 827 | Richter, Brian (1654) | Lost 1-2 | -151481 |
| top | average opponent: 1669record: 1-3 | new rating: 1481 | ||
| Grand Prix Las Vegas 2017 (legacy) (legacy) | starting rating: 1559 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 438 | Anderson, Sara (1525) | Lost 0-2 | -191540 |
| 3legacy | 992 | Hummel, Gary (1503) | Lost 1-2 | -181522 |
| 4legacy | 2181 | Kwiatkowski, Jon (1668) | Lost 1-2 | -161506 |
| top | average opponent: 1565record: 0-3 | new rating: 1506 | ||
| Grand Prix San Jose 2017 (AER limited) | starting rating: 1592 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 93 | Ellis, Bennett (1685) | Lost 0-2 | -171575 |
| 4sealed | 293 | Slutsky, Simon (1662) | Lost 1-2 | -161559 |
| top | average opponent: 1673record: 0-2 | new rating: 1559 | ||
| Pro Tour Kaladesh (KLD standard) | starting rating: 1578 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 83 | Kibler, Brian (1878) | Lost 0-2 | -131565 |
| 2draft | 229 | Perez, Ruben (1994) | Lost 1-2 | -101555 |
| 3draft | 132 | To, Alex (1634) | Lost 0-2 | -171538 |
| 4standard | 220 | Tomajko, Oliver (1950) | Won 2-1 | +251563 |
| 5standard | 211 | Kirkwood, Scott (1843) | Won 2-1 | +231586 |
| 6standard | 148 | Black, Samuel (2059) | Won 2-1 | +261612 |
| 7standard | 95 | Sukenik, Jonathan (1954) | Lost 1-2 | -121600 |
| 8standard | 127 | Lipp, Scott (2175) | Lost 0-2 | -81592 |
| top | average opponent: 1936record: 3-5 | new rating: 1592 | ||
| Grand Prix Los Angeles 2016 (modern) | starting rating: 1496 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 130 | Bauman, Mike (1726) | Won 2-1 | +221518 |
| 4modern | 234 | Fernandes, Edward (1519) | Won 2-1 | +181536 |
| 5modern | 39 | Sumulong, Miguel (1675) | Lost 1-2 | -151521 |
| 6modern | 201 | Fileccia, Matthew (1552) | Won 2-1 | +181539 |
| 7modern | 78 | Shipley, Harry (1505) | Won 2-0 | +181557 |
| 8modern | 39 | Lee, Kane (1595) | Won 2-1 | +191576 |
| 9modern | 19 | Petersen, Andreas (1748) | Lost 1-2 | -151561 |
| 10modern | 53 | Coleman, Victorious (1568) | Won 2-0 | +181579 |
| 11modern | 79 | Saito, Tomoharu (1936) | Won 2-1 | +241603 |
| 12modern | 36 | Schlesinger, Gal (1615) | Lost 0-2 | -181585 |
| 13modern | 47 | Doberne, David (1772) | Won 2-0 | +221607 |
| 14modern | 50 | Gutierrez Saldate, Luis Fernando (1957) | Lost 0-2 | -121595 |
| 15modern | 54 | Brooks, Dane (1667) | Lost 0-2 | -171578 |
| top | average opponent: 1680record: 8-5 | new rating: 1578 | ||
| Grand Prix Oakland 2016 (BFZ standard) | starting rating: 1490 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 310 | Palmer, James (1503) | Draw 1-1 | 01490 |
| 4standard | 222 | Cabanero, Erik (1655) | Draw 1-1 | +31493 |
| 5standard | 377 | Cooper, Russell 2 (1522) | Won 2-1 | +191512 |
| 6standard | 229 | Johnson, Ian (1628) | Lost 1-2 | -161496 |
| 7standard | 371 | Gonzalez, Gabriel (1542) | Draw 1-1 | +11497 |
| 8standard | 474 | Garam, Anthony (1469) | Lost 1-2 | -191478 |
| 9standard | 404 | Poncelet, Kevin (1488) | Won 2-1 | +181496 |
| top | average opponent: 1544record: 2-2-3 | new rating: 1496 | ||
| Grand Prix San Diego 2015 (ORI standard) | starting rating: 1524 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 35 | Rorabaush, Steven (1535) | Lost 1-2 | -181506 |
| 4standard | 256 | Veloz, Anthony (1638) | Won 2-1 | +201526 |
| 5standard | 140 | Udy, Kendrick (1506) | Lost 1-2 | -181508 |
| 6standard | 363 | Espinoza, Daniel (1503) | Lost 0-2 | -181490 |
| top | average opponent: 1546record: 1-3 | new rating: 1490 | ||
| Grand Prix Sacramento 2014 (THS limited) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 263 | Oliver, Byron (1446) | Won 2-0 | +171515 |
| 2sealed | 87 | Danenberg, David (1467) | Won 2-0 | +171532 |
| 3sealed | 70 | Yoakam, Joshua (1537) | Lost 0-2 | -181514 |
| 4sealed | 22 | Murg, Cory (1553) | Won 2-0 | +191533 |
| 5sealed | 15 | Woods, Conley (1815) | Lost 0-2 | -131520 |
| 6sealed | 100 | Wayman, Eric (1592) | Lost 1-2 | -171503 |
| 7sealed | 164 | Hanes, Abraham (1536) | Won 2-1 | +191522 |
| 8sealed | 121 | Ferraro, Casey (1577) | Won 2-1 | +191541 |
| 9sealed | 73 | Castillo, Ryen (1608) | Lost 1-2 | -171524 |
| top | average opponent: 1570record: 5-4 | new rating: 1524 | ||
| Grand Prix Las Vegas 2013 (MMA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1334 | Heschl, Christopher (1484) | Lost 1-2 | -181482 |
| 2sealed | 1676 | Haworth, Chism (1482) | Won 2-1 | +181500 |
| 3sealed | 1685 | Hinson, Brandon (1500) | Won 2-1 | +181518 |
| 4sealed | 1572 | Black, Jason (1502) | Lost 0-2 | -191499 |
| 5sealed | 1325 | Song, Jiman (1500) | Won 2-0 | +181517 |
| 6sealed | 1114 | Wilkerson, Joseph (1415) | Lost 0-2 | -191498 |
| top | average opponent: 1480record: 3-3 | new rating: 1498 | ||