Tataropoulos, Kostas
Current rating: 1513
Record: 23-22
| Grand Prix Niagara Falls 2019 (legacy) | starting rating: 1488 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 16 | Buckholz, Louis (1520) | Won 2-1 | +181506 |
| 3legacy | 67 | Sklar, Michael (1543) | Lost 1-2 | -171489 |
| 4legacy | 145 | Weber, Ethan (1860) | Won 2-1 | +241513 |
| 5legacy | 208 | Henderson, Landon (1504) | Won 2-0 | +181531 |
| 6legacy | 99 | Hench, Stefan (1495) | Won 2-1 | +171548 |
| 7legacy | 61 | Frenyea, Jeremy (1550) | Lost 1-2 | -181530 |
| 8legacy | 110 | Heath, Joel (1565) | Lost 0-2 | -171513 |
| top | average opponent: 1577record: 4-3 | new rating: 1513 | ||
| Grand Prix Toronto 2018 (modern) | starting rating: 1546 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 509 | Magnuson, Keenan (1407) | Lost 0-2 | -211525 |
| 2modern | 476 | Purser, Quinn (1485) | Lost 1-2 | -191506 |
| 3modern | 780 | Tate, Liam (1464) | Lost 1-2 | -181488 |
| top | average opponent: 1452record: 0-3 | new rating: 1488 | ||
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1551 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 586 | Moon, Talon (1500) | Lost 0-2 | -191532 |
| 2modern | 651 | Grindlinger, Robert (1481) | Won 2-0 | +171549 |
| 3modern | 1134 | Gerstmann, Joshua (1519) | Lost 0-2 | -181531 |
| 4modern | 1073 | Bolding, Hunter (1555) | Lost 1-2 | -181513 |
| 5modern | 1298 | Pegg, Byron (1403) | Won 2-0 | +161529 |
| 6modern | 1168 | Janowiak Mulligan, Blythe (1456) | Won 2-0 | +171546 |
| 7modern | 1000 | Salazar, Michael (1501) | Won 2-1 | +171563 |
| 8modern | 728 | Atwater, Jaeden (1600) | Lost 0-2 | -171546 |
| top | average opponent: 1502record: 4-4 | new rating: 1546 | ||
| Grand Prix Las Vegas 2017 (legacy) (legacy) | starting rating: 1533 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 291 | Bruce, Andrew (1593) | Won 2-1 | +191552 |
| 2legacy | 86 | Hoegner, Danielle (1364) | Won 2-1 | +151567 |
| 3legacy | 428 | Everett, Timothy (1595) | Lost 1-2 | -171550 |
| 4legacy | 764 | Knoll, Jonas (1693) | Won 2-0 | +201570 |
| 5legacy | 563 | Ogawa, Satoshi (1548) | Lost 1-2 | -181552 |
| 6legacy | 757 | Verbiest, Bart (1743) | Lost 0-2 | -151537 |
| 7legacy | 793 | Nishimura, Reid (1494) | Won 2-0 | +171554 |
| 8legacy | 645 | Yeh, Donny (1525) | Lost 0-2 | -181536 |
| 9legacy | 2139 | Bishop, Alyssa (1378) | Won 2-0 | +151551 |
| top | average opponent: 1548record: 5-4 | new rating: 1551 | ||
| Grand Prix Columbus 2016 (legacy) | starting rating: 1557 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 115 | Allen, Benjamin (1479) | Lost 1-2 | -201537 |
| 2legacy | 579 | Lawson, Duncan (1461) | Lost 1-2 | -191518 |
| 3legacy | 864 | Russell, Justin (1560) | Lost 1-2 | -171501 |
| 4legacy | 858 | Richardson, Anthony (1379) | Won 2-0 | +161517 |
| 5legacy | 722 | VanBecelaere, Zach (1417) | Won 2-1 | +161533 |
| 6legacy | 631 | Coleman, Robbie (1481) | Won 2-0 | +171550 |
| 7legacy | 496 | McGrew, Steven (1562) | Won 2-1 | +181568 |
| 8legacy | 423 | Pardes, Noah (1530) | Lost 1-2 | -191549 |
| 9legacy | 440 | Shade, Richard (1656) | Lost 1-2 | -161533 |
| top | average opponent: 1503record: 4-5 | new rating: 1533 | ||
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 84 | Moran, Tim (1505) | Won 2-1 | +181518 |
| 2legacy | 238 | Jones, Steve (1523) | Won 2-1 | +181536 |
| 3legacy | 254 | Stromley, Michael (1496) | Won 2-1 | +171553 |
| 4legacy | 64 | Long, Byron (1521) | Lost 0-2 | -181535 |
| 5legacy | 226 | Pelrine, Josh (1671) | Won 2-1 | +201555 |
| 6legacy | 141 | McKeown, Ian (1589) | Lost 0-2 | -171538 |
| 7legacy | 216 | Tracy, Daniel (1498) | Lost 0-2 | -191519 |
| 8legacy | 246 | Bissonnette, Richard (1514) | Won 2-0 | +181537 |
| 9legacy | 152 | Sutliff, Casey (1634) | Won 2-1 | +201557 |
| top | average opponent: 1550record: 6-3 | new rating: 1557 | ||