Highest classical chess ratings ever: Guam
The best rating of every player who represents Guam today, on FIDE's classical rating lists since July 1971.
CM Peter Mafnas's 2095 on the August 2015 list is the highest classical rating held by a player who represents Guam today.
| # | Player | Peak | First reached | Latest |
|---|---|---|---|---|
| 1 | GUM · Aug 2015 · Latest 1830 | 2095 | Aug 2015 | 1830 |
| 2 | GUM · Oct 2025 · Latest 1969 | 2062 | Oct 2025 | 1969 |
| 3 | GUM · Sep 2026 · Latest 2035 | 2060 | Sep 2026 | 2035 |
| 4 | GUM · Aug 2022 · Latest 1957 | 2017 | Aug 2022 | 1957 |
| 5 | GUM · Mar 2024 · Latest 1988 | 1988 | Mar 2024 | 1988 |
| 6 | GUM · May 2024 · Latest 1905 | 1960 | May 2024 | 1905 |
| 7 | GUM · Aug 2015 · Latest 1897 | 1943 | Aug 2015 | 1897 |
| 8 | GUM · Nov 2025 · Latest 1845 | 1941 | Nov 2025 | 1845 |
| 9 | GUM · Mar 2024 · Latest 1933 | 1933 | Mar 2024 | 1933 |
| 10 | GUM · Aug 2025 · Latest 1858 | 1929 | Aug 2025 | 1858 |
| 11 | GUM · Mar 2024 · Latest 1900 | 1900 | Mar 2024 | 1900 |
| 12 | GUM · Mar 2024 · Latest 1890 | 1890 | Mar 2024 | 1890 |
| 12 | GUM · Sep 2026 · Latest 1890 | 1890 | Sep 2026 | 1890 |
| 14 | GUM · Oct 2025 · Latest 1860 | 1889 | Oct 2025 | 1860 |
| 15 | GUM · Mar 2024 · Latest 1735 | 1884 | Mar 2024 | 1735 |
| 16 | GUM · Mar 2024 · Latest 1834 | 1879 | Mar 2024 | 1834 |
| 17 | GUM · Mar 2024 · Latest 1870 | 1870 | Mar 2024 | 1870 |
| 18 | GUM · Mar 2024 · Latest 1765 | 1869 | Mar 2024 | 1765 |
| 19 | GUM · Oct 2025 · Latest 1867 | 1868 | Oct 2025 | 1867 |
| 20 | GUM · Sep 2024 · Latest 1774 | 1863 | Sep 2024 | 1774 |
| 21 | GUM · Sep 2012 · Latest 1850 | 1858 | Sep 2012 | 1850 |
| 22 | GUM · Mar 2024 · Latest 1851 | 1851 | Mar 2024 | 1851 |
| 22 | GUM · Mar 2024 · Latest 1851 | 1851 | Mar 2024 | 1851 |
| 24 | GUM · Mar 2024 · Latest 1845 | 1845 | Mar 2024 | 1845 |
| 25 | GUM · Mar 2024 · Latest 1830 | 1830 | Mar 2024 | 1830 |
| 26 | GUM · Sep 2024 · Latest 1706 | 1826 | Sep 2024 | 1706 |
| 27 | GUM · Mar 2024 · Latest 1825 | 1825 | Mar 2024 | 1825 |
| 28 | GUM · Sep 2026 · Latest 1819 | 1819 | Sep 2026 | 1819 |
| 29 | GUM · Mar 2024 · Latest 1742 | 1813 | Mar 2024 | 1742 |
| 30 | GUM · Mar 2024 · Latest 1805 | 1805 | Mar 2024 | 1805 |
| 31 | GUM · May 2024 · Latest 1753 | 1802 | May 2024 | 1753 |
| 32 | GUM · Mar 2024 · Latest 1800 | 1800 | Mar 2024 | 1800 |
| 33 | GUM · Sep 2026 · Latest 1798 | 1798 | Sep 2026 | 1798 |
| 34 | GUM · Feb 2026 · Latest 1797 | 1797 | Feb 2026 | 1797 |
| 35 | GUM · Mar 2026 · Latest 1796 | 1796 | Mar 2026 | 1796Mar 2026 |
| 36 | GUM · Mar 2024 · Latest 1794 | 1794 | Mar 2024 | 1794 |
| 37 | GUM · Mar 2026 · Latest 1792 | 1792 | Mar 2026 | 1792Mar 2026 |
| 38 | GUM · Sep 2025 · Latest 1779 | 1790 | Sep 2025 | 1779 |
| 39 | GUM · Mar 2024 · Latest 1789 | 1789 | Mar 2024 | 1789 |
| 40 | GUM · Apr 2026 · Latest 1743 | 1783 | Apr 2026 | 1743 |
| 41 | GUM · Mar 2024 · Latest 1760 | 1781 | Mar 2024 | 1760 |
| 42 | GUM · May 2024 · Latest 1736 | 1780 | May 2024 | 1736 |
| 43 | GUM · Nov 2025 · Latest 1728 | 1775 | Nov 2025 | 1728 |
| 44 | GUM · Mar 2024 · Latest 1702 | 1772 | Mar 2024 | 1702 |
| 45 | GUM · May 2024 · Latest 1634 | 1764 | May 2024 | 1634 |
| 46 | GUM · Feb 2026 · Latest 1755 | 1760 | Feb 2026 | 1755 |
| 47 | GUM · Aug 2015 · Latest 1698 | 1754 | Aug 2015 | 1698Jan 2023 |
| 48 | GUM · Sep 2025 · Latest 1739 | 1750 | Sep 2025 | 1739 |
| 49 | GUM · Mar 2026 · Latest 1748 | 1748 | Mar 2026 | 1748Mar 2026 |
| 50 | GUM · Mar 2024 · Latest 1664 | 1747 | Mar 2024 | 1664 |
| 50 | GUM · Nov 2025 · Latest 1747 | 1747 | Nov 2025 | 1747 |
| 52 | GUM · Mar 2024 · Latest 1745 | 1745 | Mar 2024 | 1745 |
| 52 | GUM · Jan 2026 · Latest 1740 | 1745 | Jan 2026 | 1740 |
| 54 | GUM · Mar 2024 · Latest 1741 | 1741 | Mar 2024 | 1741 |
| 55 | GUM · Mar 2026 · Latest 1716 | 1737 | Mar 2026 | 1716 |
| 56 | GUM · Jun 2025 · Latest 1648 | 1736 | Jun 2025 | 1648 |
| 57 | GUM · Mar 2024 · Latest 1731 | 1731 | Mar 2024 | 1731 |
| 58 | GUM · Mar 2024 · Latest 1724 | 1724 | Mar 2024 | 1724 |
| 59 | GUM · Mar 2024 · Latest 1572 | 1720 | Mar 2024 | 1572 |
| 60 | GUM · Nov 2025 · Latest 1718 | 1719 | Nov 2025 | 1718 |
| 61 | GUM · Apr 2025 · Latest 1628 | 1718 | Apr 2025 | 1628 |
| 62 | GUM · Mar 2024 · Latest 1717 | 1717 | Mar 2024 | 1717 |
| 63 | GUM · Sep 2025 · Latest 1586 | 1706 | Sep 2025 | 1586 |
| 64 | GUM · Jun 2024 · Latest 1630 | 1700 | Jun 2024 | 1630 |
| 65 | GUM · Sep 2026 · Latest 1680 | 1686 | Sep 2026 | 1680 |
| 66 | GUM · Sep 2026 · Latest 1685 | 1685 | Sep 2026 | 1685 |
| 67 | GUM · Mar 2024 · Latest 1684 | 1684 | Mar 2024 | 1684 |
| 68 | GUM · Apr 2026 · Latest 1683 | 1683 | Apr 2026 | 1683 |
| 69 | GUM · Dec 2024 · Latest 1535 | 1682 | Dec 2024 | 1535 |
| 70 | GUM · Mar 2024 · Latest 1673 | 1673 | Mar 2024 | 1673 |
| 70 | GUM · Aug 2025 · Latest 1584 | 1673 | Aug 2025 | 1584 |
| 70 | GUM · Nov 2025 · Latest 1597 | 1673 | Nov 2025 | 1597 |
| 73 | GUM · Sep 2026 · Latest 1639 | 1671 | Sep 2026 | 1639 |
| 74 | GUM · Apr 2026 · Latest 1670 | 1670 | Apr 2026 | 1670 |
| 75 | GUM · Dec 2024 · Latest 1462 | 1665 | Dec 2024 | 1462 |
| 76 | GUM · May 2024 · Latest 1442 | 1659 | May 2024 | 1442 |
| 77 | GUM · Sep 2024 · Latest 1539 | 1655 | Sep 2024 | 1539 |
| 78 | GUM · May 2024 · Latest 1543 | 1648 | May 2024 | 1543 |
| 79 | GUM · Mar 2024 · Latest 1644 | 1644 | Mar 2024 | 1644 |
| 80 | GUM · Apr 2025 · Latest 1574 | 1643 | Apr 2025 | 1574 |
| 81 | GUM · Mar 2024 · Latest 1593 | 1641 | Mar 2024 | 1593 |
| 82 | GUM · Mar 2024 · Latest 1560 | 1632 | Mar 2024 | 1560 |
| 83 | GUM · Mar 2024 · Latest 1624 | 1624 | Mar 2024 | 1624 |
| 84 | GUM · May 2024 · Latest 1593 | 1616 | May 2024 | 1593 |
| 85 | GUM · Mar 2024 · Latest 1575 | 1613 | Mar 2024 | 1575 |
| 86 | GUM · Mar 2024 · Latest 1526 | 1610 | Mar 2024 | 1526 |
| 86 | GUM · Feb 2026 · Latest 1610 | 1610 | Feb 2026 | 1610 |
| 88 | GUM · Dec 2024 · Latest 1592 | 1602 | Dec 2024 | 1592 |
| 89 | GUM · Mar 2026 · Latest 1600 | 1600 | Mar 2026 | 1600Mar 2026 |
| 90 | GUM · Mar 2024 · Latest 1597 | 1597 | Mar 2024 | 1597 |
| 91 | GUM · Jan 2026 · Latest 1590 | 1592 | Jan 2026 | 1590 |
| 92 | GUM · Sep 2026 · Latest 1590 | 1590 | Sep 2026 | 1590 |
| 93 | GUM · Mar 2026 · Latest 1481 | 1587 | Mar 2026 | 1481 |
| 94 | GUM · Jun 2024 · Latest 1466 | 1584 | Jun 2024 | 1466 |
| 95 | GUM · Jan 2026 · Latest 1581 | 1583 | Jan 2026 | 1581 |
| 96 | GUM · Jun 2025 · Latest 1509 | 1581 | Jun 2025 | 1509 |
| 97 | GUM · Mar 2025 · Latest 1473 | 1575 | Mar 2025 | 1473 |
| 98 | GUM · Sep 2025 · Latest 1501 | 1572 | Sep 2025 | 1501 |
| 98 | GUM · Dec 2025 · Latest 1418 | 1572 | Dec 2025 | 1418 |
| 100 | GUM · Jan 2026 · Latest 1561 | 1566 | Jan 2026 | 1561 |
Peak is a player's highest rating on any of FIDE's classical rating lists since July 1971. When a player reached the same peak more than once, the first month is shown; 'By Jan 2001' means the peak was already on the earliest list we have for that player, so it may be older. Latest is the rating on the most recent list that rates the player. Players are listed under the federation they represent today, with every rating they have held, including ratings held while representing another federation.