Shapiro, Yakov
Current rating: 1637
Record: 44-32-3 (GP) / 3-5 (professional)
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1663 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 538 | Greenleaf, Paul (1500) | Lost 0-2 | -211642 |
| 2sealed | 641 | Lagowski, Mark (1482) | Won 2-0 | +151657 |
| 3sealed | 636 | Wagner, Bob (1535) | Lost 1-2 | -201637 |
| top | average opponent: 1506record: 1-2 | new rating: 1637 | ||
| Grand Prix Daytona Beach 2007 (LRW limited) | starting rating: 1633 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 73 | Hines, Stephen R (1536) | Won 2-1 | +171650 |
| 3sealed | 176 | Reusing, Sean (1482) | Lost 1-2 | -221628 |
| 4sealed | 203 | Mahon, John (1715) | Won 2-1 | +201648 |
| 5sealed | 137 | Grimmer, Brian (1614) | Won 2-0 | +171665 |
| 6sealed | 84 | Joiner, Brian (1505) | Lost 1-2 | -201645 |
| 7sealed | 66 | Laake, Michael (1454) | Won 2-0 | +141659 |
| 8sealed | 91 | Cooper, Geddes (1705) | Lost 1-2 | -171642 |
| 9sealed | 75 | Hron, Mike (1814) | Won 2-0 | +211663 |
| top | average opponent: 1603record: 5-3 | new rating: 1663 | ||
| Pro Tour Valencia 2007 (extended) | starting rating: 1680 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 187 | Marti, Enric (1542) | Lost 0-2 | -201660 |
| 2extended | 205 | Rizhikov, Pavel (1559) | Won 2-0 | +161676 |
| 3extended | 59 | Wiegersma, Jelger (1835) | Lost 0-2 | -151661 |
| 4extended | 144 | Viljoen, Pieter (1576) | Lost 0-2 | -201641 |
| 5extended | 161 | Wludyka, Joshua (1513) | Lost 0-2 | -201621 |
| 6extended | 178 | Marsal, Basile (1535) | Won 2-0 | +161637 |
| 7extended | 140 | Fernandez, Ricardo (1447) | Won 2-1 | +151652 |
| 8extended | 133 | Salemi, Claudio (1618) | Lost 1-2 | -191633 |
| top | average opponent: 1578record: 3-5 | new rating: 1633 | ||
| Grand Prix San Francisco 2007 (Time Spiral block) | starting rating: 1672 | |||
| round | table | opponent (rating) | result | Δrating |
| 3block | 58 | Felix, Alcibiades (1536) | Won 2-1 | +151687 |
| 4block | 15 | Damo da Rosa, Paulo Vitor (2021) | Lost 0-2 | -121675 |
| 5block | 130 | Reiser, Adam (1516) | Lost 0-2 | -211654 |
| 6block | 142 | Schwartz, Conrad (1518) | Won 2-1 | +161670 |
| 7block | 104 | Baskeen, Colin (1536) | Won 2-0 | +151685 |
| 8block | 85 | Good, Mark (1527) | Lost 1-2 | -201665 |
| 9block | 93 | Young, Kelvin (1535) | Won 0-0 | +151680 |
| top | average opponent: 1598record: 4-3 | new rating: 1680 | ||
| Grand Prix Montreal 2007 (Time Spiral block) | starting rating: 1737 | |||
| round | table | opponent (rating) | result | Δrating |
| 3block | 58 | Ting-A-Kee, Andrew (1526) | Lost 0-2 | -221715 |
| 4block | 157 | Noworaj, Anna (1519) | Lost 0-2 | -211694 |
| 5block | 251 | Daniel, Bruno Cezar (1482) | Lost 0-2 | -221672 |
| top | average opponent: 1509record: 0-3 | new rating: 1672 | ||
| Grand Prix Dallas 2007 (extended) | starting rating: 1662 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 147 | Stinnett, Johnathan (1500) | Won 2-1 | +151677 |
| 3extended | 53 | Dio, Michael V (1537) | Lost 0-0 | -201657 |
| 4extended | 171 | Canady, Loren D (1500) | Draw 1-1 | -31654 |
| 5extended | 164 | Lee, Robert (1516) | Won 2-1 | +151669 |
| 6extended | 104 | Tilley, Trent (1535) | Won 2-0 | +161685 |
| 7extended | 65 | Purn, Michael (1572) | Won 2-0 | +161701 |
| 8extended | 33 | Edel, Willy (1981) | Won 2-1 | +231724 |
| 9extended | 21 | Walls, Gabe (1851) | Won 2-0 | +201744 |
| 10extended | 10 | Keith, Jody (1580) | Won 2-1 | +151759 |
| 11extended | 8 | Hawkins, Jesse (1621) | Won 2-0 | +161775 |
| 12extended | 3 | Herberholz, Mark (1986) | Lost 0-2 | -151760 |
| 13extended | 9 | Bustamante, Analynn (1692) | Lost 1-2 | -191741 |
| 14extended | 15 | Bertelsen, Nathan (1608) | Lost 1-2 | -201721 |
| 15extended | 21 | Corley, Michael (1616) | Won 2-0 | +161737 |
| top | average opponent: 1650record: 9-4-1 | new rating: 1737 | ||
| Grand Prix New Jersey 2006 (TSP limited) | starting rating: 1544 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 173 | White, James (1500) | Won 2-0 | +181562 |
| 3sealed | 57 | Putnam, Taylor (1678) | Lost 1-2 | -161546 |
| 4sealed | 129 | Boyle, Josh O (1500) | Won 2-0 | +171563 |
| 5sealed | 98 | Fortson, Kenneth (1519) | Won 2-0 | +171580 |
| 6sealed | 122 | Seder, Robert (1539) | Won 2-0 | +171597 |
| 7sealed | 25 | Nakamura, Shuhei (2044) | Won 2-1 | +261623 |
| 8sealed | 28 | Aral, Jason (1599) | Won 2-1 | +171640 |
| 9sealed | 13 | Warmenhoven, Ruud (1860) | Lost 1-2 | -141626 |
| 10draft | 63 | Kovinsky, Stuart (1492) | Won 2-0 | +161642 |
| 11draft | 47 | McKenna, Timothy (1818) | Lost 0-2 | -151627 |
| 12draft | 58 | Mead, Forrest (1603) | Won 2-0 | +181645 |
| 13draft | 27 | Szolopiak, James (1613) | Won 2-0 | +171662 |
| 14draft | 24 | Powelson, Jeff (1649) | Won 2-1 | +181680 |
| 15draft | 38 | Freedman, Jerry (1691) | Lost 1-2 | -181662 |
| top | average opponent: 1650record: 10-4 | new rating: 1662 | ||
| Grand Prix Toronto 2006 (DIS limited) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 175 | Gillham, Jacob (1572) | Won 2-1 | +191504 |
| 2sealed | 19 | Teibert, Scott (1518) | Won 2-0 | +181522 |
| 3sealed | 31 | Neufeld, Bryan (1477) | Draw 1-1 | 01522 |
| 4sealed | 68 | Birthelmer, Marty (1535) | Won 2-1 | +181540 |
| 5sealed | 34 | Majlaton, Alex (1724) | Lost 0-2 | -151525 |
| 6sealed | 72 | Garnelis, Kyle (1570) | Lost 0-2 | -171508 |
| 7sealed | 87 | Noworaj, Anna (1518) | Won 2-0 | +181526 |
| 8sealed | 61 | Da Rocha, Christopher (1537) | Won 2-0 | +181544 |
| top | average opponent: 1556record: 5-2-1 | new rating: 1544 | ||
| Grand Prix Charlotte 2005 (extended) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 90 | Oliveros, Alex (1518) | Won 1-0 | +181499 |
| 3extended | 2 | Lacroix, Mike (1536) | Lost 1-2 | -171482 |
| 4extended | 100 | Leite, Evan (1551) | Lost 0-2 | -171465 |
| 5extended | 149 | Engelhardt, Efridge (1501) | Lost 0-1 | -171448 |
| 6extended | 142 | Vearil, Nick (1481) | Won 2-0 | +191467 |
| 7extended | 108 | Caldwell, Joshua (1436) | Draw 1-1 | -11466 |
| 8extended | 86 | Tompkins, Mike (1500) | Won 2-1 | +191485 |
| top | average opponent: 1503record: 3-3-1 | new rating: 1485 | ||
| Grand Prix Boston 2005 (extended) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 39 | Bourne, Brenton (1500) | Lost 1-2 | -181499 |
| 2extended | 223 | Martinez, Joshua (1483) | Won 2-1 | +171516 |
| 3extended | 145 | Redman, Christopher (1481) | Won 2-0 | +181534 |
| 4extended | 172 | Schofield, Bryan (1619) | Lost 0-2 | -171517 |
| 5extended | 226 | Muse, Brian (1499) | Lost 0-2 | -181499 |
| 6extended | 219 | Martin, Juan (1482) | Lost 1-2 | -181481 |
| top | average opponent: 1510record: 2-4 | new rating: 1481 | ||
| Grand Prix New Jersey 2004 (Mirrodin block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 93 | Torres, Lyndsay (1500) | Won 2-0 | +181518 |
| 2block | 209 | McMath, Tim (1500) | Lost 1-2 | -181500 |
| 3block | 171 | Koven, Robert (1470) | Lost 0-2 | -191481 |
| 4block | 407 | Serwan, Daniel (1483) | Won 2-0 | +181499 |
| 5block | 335 | Wenkemann, Dirk (1504) | Lost 0-2 | -181481 |
| 6block | 337 | Zabrecky, Allan (1482) | Won 2-1 | +181499 |
| 7block | 255 | Ganiere, Scott (1502) | Won 2-0 | +181517 |
| 8block | 160 | Combs, Joseph (1502) | Lost 0-2 | -181499 |
| 9block | 165 | Jacobson, Mark (1500) | Won 2-1 | +181517 |
| top | average opponent: 1494record: 5-4 | new rating: 1517 | ||