Park, Sebastian Y
Current rating: 1663
Record: 25-15
| Grand Prix Oakland 2013 (M14 limited) | starting rating: 1618 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 198 | Calabrese, Eli (1500) | Lost 1-2 | -211597 |
| 2sealed | 515 | B909, Ben (1482) | Won 2-0 | +161613 |
| 3sealed | 354 | Heine, Brian (1695) | Won 2-1 | +201633 |
| 4sealed | 236 | Garcia, Issiahs (1501) | Won 2-0 | +151648 |
| 5sealed | 323 | Keeth, Christian (1777) | Won 2-1 | +211669 |
| 6sealed | 178 | Harper, Travis (1654) | Won 2-0 | +181687 |
| 7sealed | 106 | Chen, Lokman (1722) | Won 2-0 | +181705 |
| 8sealed | 70 | Whitehurst, Clinton (1464) | Lost 1-2 | -221683 |
| 9sealed | 112 | Romero, Bill (1605) | Lost 0-2 | -201663 |
| top | average opponent: 1600record: 6-3 | new rating: 1663 | ||
| Grand Prix Atlantic City 2013 (RTR standard) | starting rating: 1573 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 22 | Pin, Eric (1447) | Lost 1-2 | -211552 |
| 2standard | 535 | Bucek, Samuel (1467) | Won 2-1 | +171569 |
| 3standard | 577 | Owen, Luis (1502) | Won 2-1 | +171586 |
| 4standard | 314 | Fischer, Justin (1490) | Lost 0-2 | -201566 |
| 5standard | 525 | Zwaig, Jonathan (1483) | Won 2-1 | +161582 |
| 6standard | 469 | Fulton, Randall (1490) | Won 2-1 | +171599 |
| 7standard | 214 | Karmiche, Dominick (1540) | Won 2-1 | +171616 |
| 8standard | 183 | Rice, Stephen (1658) | Won 2-1 | +181634 |
| 9standard | 70 | Lee, Herman (1700) | Lost 0-2 | -161618 |
| top | average opponent: 1531record: 6-3 | new rating: 1618 | ||
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 11 | Onusic, Justin (1536) | Won 2-1 | +191538 |
| 2standard | 50 | Beebe, Berry (1518) | Lost 1-2 | -191519 |
| 3standard | 263 | DiPrinzio, Nicholas (1500) | Won 2-0 | +181537 |
| 4standard | 151 | Buchanan, Carl (1518) | Won 2-1 | +181555 |
| 5standard | 132 | Balducci, Tommas (1440) | Won 2-1 | +161571 |
| 6standard | 81 | Menard, Bryce J (1553) | Won 2-1 | +171588 |
| 7standard | 41 | Neal, Stephen (1622) | Won 2-0 | +191607 |
| 8standard | 24 | Holzwarth, Michael (1600) | Won 2-1 | +181625 |
| 9standard | 9 | Day, James (1566) | Won 2-1 | +171642 |
| 10standard | 20 | Sauve, Nicholas (1625) | Lost 0-2 | -191623 |
| 11standard | 66 | Arends, Randolph (1614) | Lost 0-2 | -181605 |
| 12standard | 70 | Hatch, Gregory (1697) | Lost 0-2 | -161589 |
| 13standard | 73 | Davis, Todd (1691) | Lost 1-2 | -161573 |
| top | average opponent: 1575record: 8-5 | new rating: 1573 | ||
| Grand Prix Los Angeles 2009 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 152 | Barton, Cameron (1500) | Won 2-0 | +181518 |
| 2extended | 148 | Fairbourne, ben J (1518) | Won 2-1 | +181536 |
| 3extended | 19 | Hendrix, Carl (1505) | Lost 0-2 | -191517 |
| 4extended | 237 | Condon, Alex (1465) | Won 2-1 | +171534 |
| 5extended | 171 | Gonzales, Gilbert (1538) | Won 2-0 | +191553 |
| 6extended | 64 | Krug, Andrew (1567) | Lost 0-2 | -181535 |
| 7extended | 100 | Raney, Tom (1546) | Lost 1-2 | -181517 |
| 8extended | 140 | Laursen, Johnathan (1517) | Won 2-0 | +181535 |
| 9extended | 108 | Pauly, Christopher M (1667) | Lost 1-2 | -161519 |
| top | average opponent: 1536record: 5-4 | new rating: 1519 | ||