De Guzman, Ray
Current rating: 1803 (#2144)
Record: 45-25-1 (GP) / 8-7-1 (professional)
| Grand Prix Manila 2015 (KTK standard) | starting rating: 1763 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 141 | Olivete, Jayron (1555) | Lost 0-2 | -221741 |
| 2standard | 389 | Brutas, Reige Herald (1411) | Won 2-1 | +121753 |
| 3standard | 425 | Mendoza, Renzi (1482) | Lost 1-2 | -231730 |
| 4standard | 494 | Nava, Adonis (1482) | Won 2-1 | +141744 |
| 5standard | 443 | Ganaden, Mark Carlo (1500) | Won 2-0 | +141758 |
| 6standard | 289 | Cruz, Marlon Kane (1536) | Won 1-0 | +141772 |
| 7standard | 164 | Arpon, Aaron (1571) | Won 2-1 | +141786 |
| 8standard | 121 | Siagian, Yohannes (1613) | Won 2-1 | +151801 |
| 9standard | 94 | Law, Charles (1902) | Draw 1-1 | +21803 |
| top | average opponent: 1561record: 6-2-1 | new rating: 1803 | ||
| Grand Prix Kuala Lumpur 2014 (THS limited) | starting rating: 1740 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 13 | Wiriyaampon, Kampanart (1479) | Lost 0-2 | -231717 |
| 2sealed | 257 | Chang, Eugene Ong Yeng (1601) | Lost 0-2 | -201697 |
| 3sealed | 413 | Mohd Hassan, Mohammad Aidil Azrin (1360) | Won 2-0 | +121709 |
| 4sealed | 404 | Nimboonchaj, Bodeepajra (1434) | Won 2-0 | +141723 |
| 5sealed | 285 | Ahmad, Mohd Azwan (1502) | Won 2-0 | +141737 |
| 6sealed | 190 | Mohd Nor, Aiman (1519) | Won 2-1 | +141751 |
| 7sealed | 146 | Cato, Matthew (1670) | Won 2-1 | +161767 |
| 8sealed | 95 | Tang, Yang Ming Benjam (1563) | Won 2-1 | +151782 |
| 9sealed | 77 | Williams, Luke (1741) | Lost 0-2 | -191763 |
| top | average opponent: 1541record: 6-3 | new rating: 1763 | ||
| Grand Prix Manila 2012 (AVR standard) | starting rating: 1649 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 375 | Punzalan, Kenaz Camach (1500) | Won 2-0 | +151664 |
| 2standard | 189 | Yap, Oliver (1428) | Won 2-1 | +141678 |
| 3standard | 156 | Manalac, Lloyd Albert (1592) | Lost 0-2 | -201658 |
| 4standard | 287 | Dizon, Stanley (1517) | Won 2-1 | +161674 |
| 5standard | 154 | Tan, Richmark H (1515) | Won 2-1 | +151689 |
| 6standard | 111 | David, Herbert (1542) | Won 2-0 | +151704 |
| 7standard | 46 | Te, Jonathan Mark (1604) | Won 2-1 | +171721 |
| 8standard | 39 | Sirilertvorakul, Veerapat (1830) | Lost 1-2 | -161705 |
| 9standard | 41 | Low, Pak Tsung (1505) | Won 2-1 | +141719 |
| 10standard | 45 | Mendoza, Stephen Edsel (1591) | Won 2-0 | +161735 |
| 11standard | 17 | Lim, Redmond (1610) | Lost 1-2 | -211714 |
| 12standard | 32 | Carbonell, John Stephen (1537) | Lost 1-2 | -211693 |
| 13standard | 44 | Mate, Adan Angelo (1553) | Won 2-1 | +161709 |
| 14standard | 31 | Banda, Mark Joseph (1596) | Won 2-0 | +161725 |
| 15standard | 27 | Calucag, Richard (1591) | Won 2-0 | +151740 |
| top | average opponent: 1567record: 11-4 | new rating: 1740 | ||
| Grand Prix Atlanta 2011 (extended) | starting rating: 1601 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 581 | Hobb, Tyler (1471) | Won 2-1 | +161617 |
| 2extended | 493 | Williams, Ben S (1518) | Won 2-1 | +161633 |
| 3extended | 470 | Spagnolo, Nicholas (1604) | Lost 1-2 | -181615 |
| 4extended | 529 | Hostutler, Justin (1665) | Won 2-0 | +191634 |
| 5extended | 514 | Milner, John M (1563) | Won 2-0 | +161650 |
| 6extended | 447 | Black, Samuel (1922) | Lost 0-2 | -131637 |
| 7extended | 483 | Koehler, Cody L (1491) | Won 2-1 | +151652 |
| 8extended | 480 | Conta, Anthony (1553) | Won 2-1 | +171669 |
| 9extended | 452 | Sosna, Ryan (1576) | Lost 1-2 | -201649 |
| top | average opponent: 1596record: 6-3 | new rating: 1649 | ||
| Grand Prix San Francisco 2007 (Time Spiral block) | starting rating: 1586 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 46 | Bartolomei, Iain (1435) | Won 2-1 | +151601 |
| 3block | 4 | Rand, Justin (1585) | Won 2-1 | +181619 |
| 4block | 67 | Wijaya, Vidianto (1634) | Lost 0-2 | -181601 |
| 5block | 87 | Stanley, Justin N (1535) | Won 2-0 | +171618 |
| 6block | 80 | Marr, Mat (1550) | Won 2-0 | +171635 |
| 7block | 22 | Szleifer, Gadiel (1837) | Won 2-0 | +211656 |
| 8block | 10 | Stein, Sam (1702) | Won 2-1 | +191675 |
| 9block | 6 | Hawkins, Charlie (1649) | Lost 0-0 | -181657 |
| 10block | 17 | Azuma, Motokiyo (1834) | Lost 0-0 | -151642 |
| 12block | 26 | Kruze, John (1532) | Won 0-0 | +161658 |
| 13block | 11 | West, Alexander (1631) | Lost 0-0 | -191639 |
| 14block | 23 | Nguyen, James (1624) | Lost 0-0 | -181621 |
| 15block | 25 | Custer, Andy (1516) | Lost 0-0 | -201601 |
| top | average opponent: 1620record: 7-6 | new rating: 1601 | ||
| Grand Prix Milwaukee 2002 (TOR standard) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 145 | Smith, Adam (1552) | Won 2-0 | +191520 |
| 3standard | 62 | Kilberry, Mike (1536) | Won 2-0 | +181538 |
| 4standard | 31 | Foley, Mike (1524) | Won 2-0 | +181556 |
| 5standard | 39 | Prawdzik, Nathaniel (1665) | Won 2-1 | +201576 |
| 6standard | 13 | Fruth, Kurt (1654) | Won 2-0 | +201596 |
| 7standard | 18 | Jones, Trevor (1540) | Lost 1-2 | -191577 |
| 8standard | 30 | Smerling, Lester (1575) | ID | 01577 |
| 9standard | 23 | Stark, Ben S (1723) | Lost 0-2 | -161561 |
| 10standard | 26 | Ellis, Ryan (1597) | Won 2-1 | +191580 |
| 11standard | 19 | Jensen, William (1883) | Lost 0-2 | -131567 |
| 12standard | 25 | Kowal, Brian (1569) | Lost 0-2 | -181549 |
| 13standard | 27 | Reid, Kyle (1619) | Won 2-0 | +201569 |
| 14standard | 21 | Zoz, Ben (1539) | Won 2-1 | +171586 |
| top | average opponent: 1614record: 8-4-1 | new rating: 1586 | ||
| Grand Prix Minneapolis 2001 (Invasion block) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 4block | 9 | Corley, Andrew (1552) | Lost 0-2 | -171519 |
| 5block | 58 | Seville, Scott (1513) | Lost 0-2 | -181501 |
| 6block | 60 | Smedema, Adam (1518) | Won 2-0 | +181519 |
| 7block | 71 | Doron, Phil (1536) | Lost 0-2 | -181501 |
| top | average opponent: 1530record: 1-3 | new rating: 1501 | ||
| Pro Tour New York 1999 (Urza's block) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 86 | O'Leary, Christoph (1500) | Won 2-1 | +191465 |
| 2block | 22 | Leiher, Peter (1621) | Won 2-1 | +211486 |
| 3block | 12 | Boeken, Noah (1472) | Won 2-0 | +181504 |
| 4block | 1 | Johnson, Andrew (1554) | Lost 1-2 | -181486 |
| 5block | 38 | Boulanger, Vincent (1541) | Lost 1-2 | -171469 |
| 6block | 47 | Lauer, Erik (1834) | Won 2-0 | +251494 |
| 7block | 40 | Hunka, John (1564) | ID | 01494 |
| 8block | 26 | Krouner, Ken (1543) | Won 2-1 | +191513 |
| 9block | 23 | Valleroy, Scott (1553) | Won 2-0 | +181531 |
| 10block | 14 | Weitz, David (1573) | Won 2-0 | +191550 |
| 11block | 8 | Clegg, Daniel (1569) | Draw 1-1 | +11551 |
| 12block | 11 | Phillipps, Eric (1688) | Lost 0-2 | -161535 |
| 13block | 19 | Bingen, Sturla (1623) | Lost 0-2 | -161519 |
| 14block | 25 | Nessler, Michael (1504) | Won 2-0 | +171536 |
| top | average opponent: 1581record: 8-4-2 | new rating: 1536 | ||
| Pro Tour Los Angeles 1998 (Tempest block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 113 | Wilson, Chris [NZL] (1500) | Lost 0-0 | -181482 |
| 2block | 118 | Wraith, Mark (1482) | Lost 0-0 | -181464 |
| 3block | 163 | Feustel, Elihu (1464) | Lost 0-0 | -181446 |
| top | average opponent: 1482record: 0-3 | new rating: 1446 | ||