Lo, Jefferson
Current rating: 1699
Record: 72-54-2
- 2014
- 2015
- 2016
- 2017
- 2018
- 2019
| Grand Prix Calgary 2019 (modern) | starting rating: 1687 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 77 | Jones, Colin (1469) | Won 2-0 | +141701 |
| 4modern | 78 | Skippen, Will (1688) | Won 2-0 | +181719 |
| 5modern | 17 | DeBoer, Adam (1669) | Won 2-0 | +171736 |
| 6modern | 12 | Panchyshyn, Aron (1563) | Lost 0-2 | -211715 |
| 7modern | 21 | Blackstock, Richard (1567) | Lost 0-2 | -211694 |
| 8modern | 95 | Hryniuk, Graham (1630) | Won 2-1 | +171711 |
| 9modern | 63 | Zhu, Adrian (1554) | Lost 0-2 | -211690 |
| 10modern | 71 | Stasiuk, Kennith (1551) | Lost 1-2 | -201670 |
| 11modern | 72 | St. Pierre, Steven (1620) | Won 2-1 | +171687 |
| 12modern | 55 | Sly, John (1577) | Won 2-1 | +161703 |
| 13modern | 49 | Pratt, Ryan (1582) | Won 2-0 | +161719 |
| 14modern | 32 | Murdoch, Alex (1616) | Lost 1-2 | -201699 |
| 15modern | 44 | Shivji, Qail (1873) | ID | 01699 |
| top | average opponent: 1612record: 7-5-1 | new rating: 1699 | ||
| Grand Prix Vancouver 2018 (UMA limited) | starting rating: 1722 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 52 | Smith, Robert RC (1961) | Lost 1-2 | -131709 |
| 4sealed | 195 | Robles, Johann (1519) | Lost 0-2 | -221687 |
| top | average opponent: 1740record: 0-2 | new rating: 1687 | ||
| Grand Prix Las Vegas 2018 (limited) (DOM limited) | starting rating: 1783 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 201 | Liu, Richard (1844) | Lost 1-2 | -171766 |
| 4sealed | 376 | Allen, Dale (1554) | Lost 0-2 | -221744 |
| 5sealed | 588 | Jardine, Mike (1527) | Lost 0-2 | -221722 |
| top | average opponent: 1642record: 0-3 | new rating: 1722 | ||
| Grand Prix Seattle 2018 (standard) (RIX standard) | starting rating: 1827 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 270 | Hartless, Dylan (1474) | Won 2-0 | +121839 |
| 4standard | 138 | Engbrecht, Ryan (1738) | Lost 0-2 | -201819 |
| 5standard | 167 | Swanson, Sam (1613) | Lost 1-2 | -221797 |
| 6standard | 321 | Beaulieu, Sam (1516) | Lost 1-2 | -231774 |
| 7standard | 373 | Mack, Stephan (1510) | Draw 1-1 | -41770 |
| 8standard | 302 | Honcoop, Jeff (1499) | Won 2-1 | +131783 |
| top | average opponent: 1558record: 2-3-1 | new rating: 1783 | ||
| Grand Prix Seattle 2018 (legacy) (legacy) | starting rating: 1875 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 326 | Seow, John (1540) | Lost 1-2 | -241851 |
| 4legacy | 257 | Clifford, Michael (1519) | Lost 0-2 | -241827 |
| top | average opponent: 1529record: 0-2 | new rating: 1827 | ||
| Grand Prix Portland 2017 (XLN standard) | starting rating: 1793 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 76 | Herbers, Adam (1682) | Lost 0-2 | -201773 |
| 4standard | 217 | Burkey, Jacob (1535) | Draw 1-1 | -51768 |
| 5standard | 329 | Boleyn, Dylan (1588) | Won 2-1 | +151783 |
| 6standard | 212 | Welch, Justin (1495) | Won 2-0 | +131796 |
| 7standard | 117 | Iverson, Connor (1544) | Won 2-1 | +141810 |
| 8standard | 68 | Coleman, Ricky (1578) | Won 2-0 | +131823 |
| 9standard | 39 | VanMeter, Chris (1890) | Won 2-0 | +201843 |
| 10standard | 23 | Lam, Tony (Nghia) (1807) | Won 2-0 | +171860 |
| 11standard | 12 | Shenhar, Shahar (2150) | Lost 1-2 | -131847 |
| 12standard | 36 | Glass, Campbell (1594) | Won 2-0 | +141861 |
| 13standard | 19 | De Blois, Paul (1703) | Won 2-0 | +151876 |
| 14standard | 12 | Bradley, James (1614) | Won 2-1 | +131889 |
| 15standard | 7 | Wijaya, Vidianto (2100) | Lost 0-2 | -141875 |
| top | average opponent: 1714record: 9-3-1 | new rating: 1875 | ||
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1788 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 757 | Smith, Warren (1635) | Won 2-1 | +161804 |
| 4modern | 301 | Royer, Danny (1693) | Won 2-1 | +161820 |
| 5modern | 44 | Parente, Justin (1814) | Lost 0-2 | -191801 |
| 6modern | 260 | Wright, Jared (1616) | Lost 1-2 | -211780 |
| 7modern | 422 | Wyatt, Joseph (1474) | Won 2-1 | +131793 |
| top | average opponent: 1646record: 3-2 | new rating: 1793 | ||
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1781 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 144 | Berni, Roberto (1965) | Won 2-0 | +211802 |
| 4sealed | 134 | Stednitz, David (1486) | Lost 0-2 | -231779 |
| 5sealed | 258 | Shimizu, Ryouta (1630) | Lost 1-2 | -211758 |
| 6sealed | 641 | Pacheco, Raphael (1556) | Won 2-1 | +151773 |
| 7sealed | 482 | Vincent, Chris (1656) | Won 2-0 | +151788 |
| top | average opponent: 1659record: 3-2 | new rating: 1788 | ||
| Grand Prix Las Vegas 2017 (legacy) (legacy) | starting rating: 1775 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 218 | Nichols, Joshua (1485) | Lost 0-2 | -231752 |
| 4legacy | 413 | Jager, Cody (1533) | Won 2-0 | +141766 |
| 5legacy | 397 | Dupret, Pedro (1521) | Won 2-1 | +131779 |
| 6legacy | 209 | Norton, Matthew (1661) | Won 2-1 | +161795 |
| 7legacy | 223 | Sidher, Ricky (2010) | Lost 1-2 | -141781 |
| top | average opponent: 1642record: 3-2 | new rating: 1781 | ||
| Grand Prix Vancouver 2017 (modern) | starting rating: 1695 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 2278 | Haversat, Jacob (1700) | Lost 1-2 | -181677 |
| 4modern | 2278 | Chase, Blake (1596) | Won 2-0 | +171694 |
| 5modern | 2148 | Nowosad, Brayden (1501) | Won 2-1 | +141708 |
| 6modern | 2122 | Rondeau, Matt (1612) | Lost 1-2 | -191689 |
| 7modern | 2131 | Tabrizi, Shawn (1729) | Won 2-1 | +181707 |
| 8modern | 2146 | Jones, Anders (1625) | Won 2-0 | +171724 |
| 9modern | 2104 | Fiffles, Adam (1738) | Won 2-0 | +181742 |
| 10modern | 2058 | Gleboff, Michael (1589) | Won 2-1 | +151757 |
| 11modern | 2055 | Penner, Michael (1667) | Lost 1-2 | -191738 |
| 12modern | 2049 | Eggerton, Brad (1553) | Won 2-0 | +141752 |
| 13modern | 2025 | Chandler, Kyle (1765) | Won 2-1 | +191771 |
| 14modern | 2040 | Egashira, Kenji (1894) | Won 2-1 | +201791 |
| 15modern | 2018 | Yoo, Bradley (1897) | Lost 1-2 | -161775 |
| top | average opponent: 1682record: 9-4 | new rating: 1775 | ||
| Grand Prix Portland 2016 (EMN standard) | starting rating: 1664 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 312 | Calhoun, Robbie (1745) | Won 2-0 | +191683 |
| 4standard | 11 | Jacobson, Mark (1978) | Lost 1-2 | -121671 |
| 5standard | 256 | Bowe, Mitchell (1510) | Won 2-1 | +151686 |
| 6standard | 69 | DiMaggio, Matthew (1647) | Won 2-0 | +171703 |
| 7standard | 103 | Roth, Adam (1528) | Lost 1-2 | -211682 |
| 8standard | 162 | Oien, Matt (1529) | Won 2-0 | +151697 |
| 9standard | 68 | Gautier, Nathaniel (1540) | Won 0-0 | +151712 |
| 10standard | 64 | Kirschner, Ezra (1603) | Won 2-1 | +161728 |
| 11standard | 20 | Blum, Tyler (1846) | Lost 0-2 | -161712 |
| 12standard | 52 | Bogner, Ryan (1761) | Lost 0-2 | -171695 |
| top | average opponent: 1669record: 6-4 | new rating: 1695 | ||
| Grand Prix Toronto 2016 (SOI standard) | starting rating: 1685 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 160 | Lee, Mon (1836) | Lost 0-2 | -161669 |
| 4standard | 295 | Ouyang, Bo (1579) | Won 2-1 | +171686 |
| 5standard | 128 | Martino, Peter (1539) | Lost 1-2 | -211665 |
| 6standard | 386 | Sargent, Samantha (1516) | Won 2-0 | +151680 |
| 7standard | 192 | Demestrio, Joe (1763) | Lost 0-2 | -161664 |
| top | average opponent: 1647record: 2-3 | new rating: 1664 | ||
| Grand Prix Vancouver 2016 (OGW limited) | starting rating: 1580 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 289 | Storla, Tyler (1467) | Lost 1-2 | -201560 |
| 3sealed | 667 | Staley, Mike (1500) | Won 0-0 | +171577 |
| 4sealed | 448 | Varah, James (1518) | Won 2-1 | +171594 |
| 5sealed | 238 | Keeth, Christian (1748) | Won 2-1 | +211615 |
| 6sealed | 112 | Pringle, Shaun (1575) | Won 2-1 | +171632 |
| 7sealed | 26 | Patterson, Will (1570) | Won 2-0 | +171649 |
| 8sealed | 28 | Eagle, Matthew (1563) | Won 2-0 | +161665 |
| 9sealed | 24 | Smith, Robert RC (1885) | Won 2-0 | +221687 |
| 10draft | 204 | Churchill, Samuel (1605) | Won 2-1 | +171704 |
| 11draft | 136 | Peterson, Sean (1763) | Lost 0-2 | -171687 |
| 12draft | 4 | Leclair, Oliver (1701) | Lost 0-2 | -181669 |
| 13draft | 49 | Leyland, Eli (1703) | Won 2-0 | +191688 |
| 14draft | 118 | Thai, Brian (1623) | Lost 0-2 | -201668 |
| 15draft | 37 | Bai, Huaxing (1578) | Won 2-0 | +171685 |
| top | average opponent: 1628record: 10-4 | new rating: 1685 | ||
| Grand Prix Seattle-Tacoma 2015 (legacy) | starting rating: 1512 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 589 | Chitiz, Alon (1693) | Won 2-1 | +221534 |
| 2legacy | 333 | Martin, TJ (1557) | Won 2-0 | +181552 |
| 3legacy | 90 | Lee, Valerian (1533) | Won 2-1 | +181570 |
| 4legacy | 84 | Pei, Eric (1902) | Won 2-1 | +231593 |
| 5legacy | 6 | Peake, Christopher (1574) | Won 2-0 | +181611 |
| 6legacy | 26 | Owens, Ryan (1732) | Lost 0-2 | -161595 |
| 7legacy | 116 | Weinstein, Zachary (1482) | Won 2-0 | +161611 |
| 8legacy | 18 | Dizon, Marcel (1725) | Won 2-1 | +201631 |
| 9legacy | 36 | Stone, Tim (1604) | Lost 1-2 | -181613 |
| 10legacy | 53 | Yeoh, Ken-Min (1635) | Lost 1-2 | -181595 |
| 11legacy | 92 | Chang, Morgan (1611) | Lost 1-2 | -181577 |
| 12legacy | 97 | Chan, Robbie (1705) | Lost 0-0 | -151562 |
| 13legacy | 99 | Campbell, Cole (1576) | Won 0-0 | +181580 |
| 14legacy | 95 | Kwok, Cosmo (1561) | Won 2-0 | +181598 |
| 15legacy | 81 | Nguyen, Joe (1614) | Lost 0-2 | -181580 |
| top | average opponent: 1634record: 9-6 | new rating: 1580 | ||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1509 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 23 | Orliner, Eric (1641) | Lost 1-2 | -151494 |
| 2sealed | 359 | Baick, Alex (1482) | Won 2-1 | +171511 |
| 3sealed | 255 | Dougher, Sean (1501) | Lost 0-2 | -181493 |
| 4sealed | 428 | Moreno Mulia, Ruth (1416) | Won 2-0 | +171510 |
| 5sealed | 293 | Roohi, Arya (1641) | Won 2-1 | +201530 |
| 6sealed | 229 | Mitchell, Kyle (1534) | Lost 0-2 | -181512 |
| top | average opponent: 1536record: 3-3 | new rating: 1512 | ||
| Grand Prix Vancouver 2015 (modern) | starting rating: 1510 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 146 | Wilkinson, Jack (1500) | Lost 1-2 | -181492 |
| 2modern | 400 | Robertson, Chris (1508) | Lost 0-2 | -181474 |
| 3modern | 474 | Semeniuk, Liam (1450) | Won 2-0 | +181492 |
| 4modern | 354 | Ng, Bryan (1481) | Won 2-1 | +171509 |
| 5modern | 238 | Hoke, Morgan (1500) | Won 2-1 | +181527 |
| 6modern | 221 | Morris, Timothy (1526) | Lost 0-2 | -181509 |
| top | average opponent: 1494record: 3-3 | new rating: 1509 | ||
| Grand Prix Vancouver 2014 (THS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 232 | Laing, Tyler (1500) | Won 2-0 | +181518 |
| 2standard | 121 | Thiessen, Jacob (1686) | Lost 1-2 | -151503 |
| 3standard | 383 | Labine, Stephane (1500) | Won 2-0 | +181521 |
| 4standard | 267 | Myers, Caleb (1686) | Lost 1-2 | -151506 |
| 5standard | 278 | Huang, Charles (1498) | Won 2-1 | +181524 |
| 6standard | 228 | Layne, Josh (1756) | Lost 0-2 | -141510 |
| top | average opponent: 1604record: 3-3 | new rating: 1510 | ||