Pieces Upgraded Leaderboard
| # | Player | Pieces Upgraded |
|---|---|---|
| 1901 | 77 | |
| 1902 | 76 | |
| 1903 | 76 | |
| 1904 | 76 | |
| 1905 | 76 | |
| 1906 | 76 | |
| 1907 | 76 | |
| 1908 | 76 | |
| 1909 | 76 | |
| 1910 | 76 | |
| 1911 | 76 | |
| 1912 | 76 | |
| 1913 | 76 | |
| 1914 | 76 | |
| 1915 | 75 | |
| 1916 | 75 | |
| 1917 | 75 | |
| 1918 | 75 | |
| 1919 | 75 | |
| 1920 | 75 | |
| 1921 | 75 | |
| 1922 | 75 | |
| 1923 | 75 | |
| 1924 | 75 | |
| 1925 | 75 | |
| 1926 | 75 | |
| 1927 | 75 | |
| 1928 | 75 | |
| 1929 | 74 | |
| 1930 | 74 | |
| 1931 | 74 | |
| 1932 | 74 | |
| 1933 | 74 | |
| 1934 | 74 | |
| 1935 | 74 | |
| 1936 | 74 | |
| 1937 | 74 | |
| 1938 | 74 | |
| 1939 | 73 | |
| 1940 | 73 | |
| 1941 | 73 | |
| 1942 | 73 | |
| 1943 | 73 | |
| 1944 | 73 | |
| 1945 | 73 | |
| 1946 | 73 | |
| 1947 | 73 | |
| 1948 | 72 | |
| 1949 | 72 | |
| 1950 | 72 |
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