Jonathan Bjornson
| Name | City | CFC Id | CFC Expiry | Regular Rating | Regular High | Quick Rating | Quick High | FIDE Id | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Bjornson, Jonathan | Calgary, AB | 105484 | 2025-09-15 | 1568 | 1671 | 1635 | 1682 | 2670020 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| End Date | Type | Games Played | Score | Old Rating | Perf Rating | New Rating | Highest Rating | ||
|---|---|---|---|---|---|---|---|---|---|
| 2025 CCC Classic Stampede Premier | 2025-08-05 | R | 5 | 2 | 1589 | 1485 | 1568 | 1671 | |
| Calgary CC Championship 2025 | 2025-06-29 | R | 5 | 2.5 | 1580 | 1678 | 1589 | 1671 | |
| Dale Haessel Classic 2025 | 2025-05-29 | R | 3 | 1.5 | 1593 | 1534 | 1580 | 1671 | |
| CCC Grand Prix Leg 3 Premier | 2025-04-22 | R | 4 | 2.5 | 1570 | 1729 | 1593 | 1671 | |
| 2025 CCC Grand Prix Leg 2 Premier | 2025-03-18 | R | 5 | 2 | 1590 | 1501 | 1570 | 1671 | |
| Calgary U1800 FIDE Open | 2025-03-15 | R | 5 | 2 | 1657 | 1295 | 1590 | 1671 | |
| CCC Grand Prix Leg 1 Premier | 2025-02-11 | R | 5 | 2.5 | 1642 | 1726 | 1657 | 1671 | |
| 2024 CCC Grand Tour Leg 3 Premier | 2024-12-17 | R | 5 | 2 | 1610 | 1656 | 1616 | 1671 | |
| Calgary Grand Tour Leg 2 Premier | 2024-11-12 | R | 4 | 1.5 | 1660 | 1348 | 1610 | 1671 | |
| Grand Tour Leg 1 Premier | 2024-10-08 | R | 4 | 2.5 | 1635 | 1839 | 1660 | 1671 | |
| Cole Harbour Active 4 | 2007-08-19 | Q | 6 | 4 | 1599 | 1431 | 1589 | 1682 | |
| Cole Harbour Summer 2007 | 2007-06-17 | Q | 5 | 2.5 | 1609 | 1530 | 1599 | 1682 | |
| 3 june 2007 Cole Harbour Active | 2007-06-03 | Q | 5 | 2.5 | 1612 | 1580 | 1609 | 1682 | |
| Paul Hake Open | 2006-09-04 | R | 8 | 4 | 1607 | 1667 | 1626 | 1671 | |
| Comfy Corner Cafe Active Tournament | 2005-12-30 | R | 5 | 3.5 | 1588 | 1704 | 1612 | 1682 | |
| 2005 Bluenose CC Open | 2005-02-27 | R | 4 | 2.5 | 1572 | 1814 | 1607 | 1671 | |
| Winter Open 2004 | 2004-03-14 | R | 5 | 3 | 1564 | 1631 | 1572 | 1671 | |
| 2003 Maritime Open | 2003-10-13 | R | 6 | 2 | 1589 | 1494 | 1564 | 1671 | |
| Bluenose Chess Club Open | 2003-02-23 | R | 5 | 1.5 | 1596 | 1538 | 1589 | 1671 | |
| Nova Scotia Open | 2002-05-20 | R | 7 | 4 | 1610 | 1574 | 1596 | 1671 | |
| Halifax Labour Day Open | 2001-09-04 | R | 8 | 3.5 | 1599 | 1629 | 1610 | 1671 | |
| Halifax Winter Tornado Open | 2001-01-27 | R | 3 | 2 | 1585 | 1606 | 1599 | 1671 | |
| Bluenose October Active | 2000-10-23 | Q | 3 | 0.5 | 1644 | 1152 | 1588 | 1682 | |
| Labour Day Open | 2000-09-01 | R | 8 | 3 | 1542 | 1706 | 1585 | 1671 | |
| Calgary Under 1800 | 2000-06-27 | R | 4 | 1 | 1582 | 1195 | 1523 | 1671 | |
| Canada Day Pre emptive Open | 2000-06-18 | R | 5 | 2 | 1523 | 1658 | 1542 | 1671 | |
| Alberta Reserves | 2000-04-23 | R | 4 | 2.5 | 1554 | 1724 | 1582 | 1671 | |
| Calgary Closed Chess Champ Sec 4 | 2000-03-14 | R | 5 | 0.5 | 1611 | 1317 | 1554 | 1671 | |
| Calgary January 2000 Open | 2000-02-15 | R | 4 | 2 | 1611 | 1638 | 1611 | 1671 | |
| Java Sharks Active | 2000-01-01 | Q | 4 | 2 | 1680 | 1411 | 1644 | 1682 | |
| Southern Alberta Open | 1999-11-14 | R | 5 | 1.5 | 1636 | 1502 | 1611 | 1671 | |
| Calgary CC Fall Class Tourn 4th Sec | 1999-10-05 | R | 5 | 3 | 1642 | 1584 | 1636 | 1671 | |
| Oct Words Tournament | 1999-10-02 | Q | 5 | 4 | 1658 | 1760 | 1680 | 1682 | |
| Sept Words Tournament | 1999-09-05 | Q | 5 | 3 | 1682 | 1525 | 1658 | 1682 | |
| Calgary Chess Club U1800 | 1999-07-20 | R | 5 | 2.5 | 1643 | 1641 | 1642 | 1671 | |
| Words July Anything U1800 | 1999-07-01 | Q | 5 | 4 | 1671 | 1713 | 1682 | 1682 | |
| Canada Day Open | 1999-06-27 | R | 4 | 1 | 1671 | 1496 | 1643 | 1671 | |
| Calgary CC Team Tourn Brd 3 | 1999-06-08 | R | 5 | 3 | 1661 | 1707 | 1671 | 1671 | |
| Calgary Spring Open | 1999-05-18 | R | 5 | 2.5 | 1618 | 1899 | 1661 | 1670 | |
| Alberta Reserves | 1999-04-04 | R | 5 | 1 | 1645 | 1542 | 1618 | 1670 | |
| Calgary March of Kings | 1999-03-21 | R | 4 | 2.5 | 1660 | 1720 | 1670 | 1670 | |
| Calgary Closed 1999 Sec C | 1999-03-15 | R | 7 | 2.5 | 1670 | 1573 | 1645 | 1670 | |
| Calgary Club February Active | 1999-03-09 | Q | 6 | 3 | 1671 | 1668 | 1671 | 1671 | |
| Calgary December Active | 1998-12-08 | Q | 6 | 3 | 1654 | 1752 | 1671 | 1671 | |
| Southern Alberta Open | 1998-11-15 | R | 4 | 1.5 | 1660 | 1677 | 1660 | 1660 | |
| Words Calgary Oct U1699 | 1998-10-17 | Q | 5 | 3.5 | 1647 | 1681 | 1654 | 1654 | |
| Alberta Open | 1998-10-12 | R | 6 | 3.5 | 1548 | 1867 | 1660 | 1660 | |
| Words Calgary Oct U2000 | 1998-10-03 | Q | 5 | 2.5 | 1638 | 1678 | 1647 | 1647 | |
| ACA Calgary Under 1800 | 1998-09-06 | R | 4 | 1.5 | 1554 | 1490 | 1548 | 1554 | |
| Words Books Julyish U2K Active | 1998-06-27 | Q | 5 | 2 | 1668 | 1505 | 1638 | 1638 | |
| 1998 Calgary January Open | 1998-02-01 | R | 4 | 2.5 | 1536 | 1665 | 1554 | 1554 | |
| Words Calgary January Under 2000 | 1998-01-03 | Q | 5 | 1.5 | 1654 | 1673 | (1668) | (24 g) | |
| Southern Alberta Open | 1997-11-16 | R | 4 | 1.5 | 1510 | 1697 | 1536 | 1536 | |
| Words Calgary October U2000 | 1997-10-04 | Q | 5 | 1 | 1727 | 1412 | (1654) | (19 g) | |
| Words September U2000 Act | 1997-09-07 | Q | 5 | 2.5 | 1708 | 1733 | (1727) | (14 g) | |
| Calgary July U1700 Active | 1997-07-19 | Q | 5 | 4.5 | 1491 | 1863 | (1708) | (9 g) | |
| Dalhousie Active 1 | 1997-04-20 | Q | 4 | 2.5 | 0 | 1483 | (1491) | (4 g) | |
| 1st Lunenburg County | 1997-03-16 | R | 5 | 3 | 1479 | 1622 | 1510 | 1514 | |
| Bluenose U1700 | 1997-02-23 | R | 5 | 2.5 | 1494 | 1378 | 1479 | 1514 | |
| Antigonish Open | 1997-01-05 | R | 5 | 2 | 1495 | 1477 | 1494 | 1514 | |
| Nova Scotia Open | 1996-11-10 | R | 5 | 1.5 | 1499 | 1453 | 1495 | 1514 | |
| Pictou County Challenge | 1996-09-02 | R | 5 | 2 | 1514 | 1414 | 1499 | 1514 |