Galperin, David
Current rating: 1553
Record: 35-31-2
| Grand Prix Las Vegas 2019 (modern) (modern) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 65 | Martel, Ashton (1483) | Won 2-0 | +171570 |
| 3modern | 252 | Novak, Tyler (1646) | Lost 0-2 | -161554 |
| 4modern | 307 | Searl, Leland (1569) | Won 2-0 | +181572 |
| 5modern | 288 | Parra, Andrew (1533) | Lost 1-2 | -191553 |
| 6modern | 300 | Galacgac, Daniel (1521) | Won 2-1 | +171570 |
| 7modern | 239 | Vallas, Nick (1600) | Lost 1-2 | -171553 |
| top | average opponent: 1559record: 3-3 | new rating: 1553 | ||
| Grand Prix Montreal 2018 (GRN limited) | starting rating: 1570 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 342 | Klein, Daniel (1583) | Lost 1-2 | -181552 |
| 2sealed | 267 | Leduc, Jean-Claude (1482) | Won 2-0 | +171569 |
| 3sealed | 252 | Boutin, Jon (1720) | Lost 0-2 | -161553 |
| top | average opponent: 1595record: 1-2 | new rating: 1553 | ||
| Grand Prix Hartford 2018 (modern) | starting rating: 1578 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 29 | Sommers, Louis (1500) | Lost 0-2 | -201558 |
| 2modern | 678 | Colon, Michael (1388) | Won 2-0 | +151573 |
| 3modern | 585 | Gamache, Thomas (1619) | Lost 1-2 | -171556 |
| 4modern | 726 | Battis, John (1484) | Won 2-0 | +171573 |
| 5modern | 554 | Delle Bovi, Mark (1502) | Won 2-1 | +171590 |
| 6modern | 347 | Williams, Craig (1488) | Lost 1-2 | -201570 |
| top | average opponent: 1497record: 3-3 | new rating: 1570 | ||
| Grand Prix Montreal 2017 (AKH standard) | starting rating: 1645 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 2008 | Kiser, Nicholas (1500) | Lost 1-2 | -211624 |
| 2standard | 2262 | Dube, Jean-Francois (1476) | Lost 1-2 | -201604 |
| 3standard | 2388 | Marchand, Alexandre (1465) | Lost 1-2 | -211583 |
| 4standard | 2404 | Holland, Ryan (1420) | Won 2-0 | +151598 |
| 5standard | 2385 | Houde, Kevin (1459) | Lost 0-2 | -201578 |
| top | average opponent: 1464record: 1-4 | new rating: 1578 | ||
| Grand Prix Richmond 2017 (AKH limited) | starting rating: 1733 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 104 | Castro-Rappl, Christopher (1573) | Lost 1-2 | -211712 |
| 2sealed | 542 | Howell, Jade (1469) | Lost 1-2 | -221690 |
| 3sealed | 721 | Blanke, Roen (1483) | Lost 1-2 | -221668 |
| 4sealed | 744 | Hardin, John (1369) | Lost 0-2 | -231645 |
| 5sealed | 698 | Litvak, Stas (1428) | Won 2-0 | +141659 |
| 6sealed | 642 | Lowe, Sam (1577) | Lost 1-2 | -191640 |
| 7sealed | 574 | Batchelder, James (1366) | Draw 0-0 | -51635 |
| 8sealed | 507 | May, Wade (1392) | Won 2-0 | +131648 |
| 9sealed | 436 | LaRocque, Patrick (1464) | Draw 0-0 | -31645 |
| top | average opponent: 1458record: 2-5-2 | new rating: 1645 | ||
| Grand Prix New Jersey 2017 (std) (AER standard) | starting rating: 1584 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 210 | Palmer, Alexander (1438) | Won 2-1 | +151599 |
| 2standard | 293 | Mincucci, Nick (1367) | Won 2-0 | +141613 |
| 3standard | 251 | Morales, Adrian (1500) | Won 2-0 | +161629 |
| 4standard | 218 | Fournier, Daniel (1987) | Won 2-1 | +241653 |
| 5standard | 84 | Noel, Jacob (1594) | Lost 1-2 | -191634 |
| 6standard | 92 | Snyder, Derek (1613) | Won 2-1 | +181652 |
| 7standard | 152 | Krueger, Ryan (1525) | Won 2-1 | +161668 |
| 8standard | 33 | Wildes, Julian (2018) | Won 2-1 | +241692 |
| 9standard | 19 | Snook, Adam (1807) | Lost 0-2 | -161676 |
| 10standard | 41 | Medrano, Adonnys (1875) | Won 2-1 | +221698 |
| 11standard | 53 | Walker, Noah (2054) | Lost 0-2 | -121686 |
| 12standard | 89 | Bugalter, Ben (1649) | Won 2-1 | +171703 |
| 13standard | 66 | Sukenik, Jonathan (2033) | Won 2-0 | +241727 |
| 14standard | 22 | Housman, Myles (1698) | Lost 0-2 | -191708 |
| 15standard | 54 | Nass, Matthew (2111) | Won 2-0 | +251733 |
| top | average opponent: 1751record: 11-4 | new rating: 1733 | ||
| Grand Prix New York 2016 (SOI standard) | starting rating: 1551 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 424 | Hochbaum, Jacob (1485) | Won 2-0 | +161567 |
| 2standard | 30 | Guichon, Gabriel (1518) | Won 2-0 | +171584 |
| 3standard | 228 | Muzio, Timothy (1553) | Won 2-1 | +181602 |
| 4standard | 161 | Saypoff, Matthew (1841) | Lost 1-2 | -141588 |
| 5standard | 367 | Henry, Jeremy (1679) | Won 2-1 | +201608 |
| 6standard | 167 | Cohen, Adam (1566) | Lost 0-2 | -191589 |
| 7standard | 378 | Duke, Reid (2101) | Won 2-1 | +271616 |
| 8standard | 224 | Cox, Patrick (1928) | Lost 1-2 | -131603 |
| 9standard | 389 | Eapen, Roshen (1545) | Lost 0-2 | -191584 |
| top | average opponent: 1690record: 5-4 | new rating: 1584 | ||
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 49 | Ahad, James (1516) | Lost 0-2 | -181518 |
| 2modern | 702 | Whittle, Matthew (1463) | Won 2-1 | +171535 |
| 3modern | 943 | Lane, Andy (1501) | Won 2-0 | +171552 |
| 4modern | 666 | Kipp, Andrew (1522) | Lost 1-2 | -181534 |
| 5modern | 740 | Wakefield, Ben (1469) | Won 2-0 | +161550 |
| 6modern | 437 | McDonald, Glenn (1624) | Won 2-1 | +201570 |
| 7modern | 259 | Tatian, John (1506) | Lost 1-2 | -191551 |
| top | average opponent: 1515record: 4-3 | new rating: 1551 | ||
| Grand Prix Montreal 2011 (M12 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 72 | Rudder, Christian (1520) | Lost 0-2 | -181482 |
| 2sealed | 208 | Desjardins, Rachel N (1482) | Won 2-0 | +181500 |
| 3sealed | 175 | Kimble, Detective (1500) | Won 2-0 | +181518 |
| 4sealed | 138 | Putnam, Arthur J (1517) | Won 2-1 | +181536 |
| 5sealed | 68 | Laforce, Mathieu (1562) | Lost 0-2 | -171519 |
| 6sealed | 139 | Longo, Tyler (1487) | Won 2-0 | +171536 |
| 7sealed | 59 | Li, Si-Ning (1537) | Won 2-1 | +181554 |
| 8sealed | 54 | Renaud, Jonathan (1542) | Lost 1-2 | -181536 |
| top | average opponent: 1519record: 5-3 | new rating: 1536 | ||