The summoner name or tag is incorrect
applessilver #0000
SILVER II
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Match History for Patch: 16.10.1
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Champion Stats for Patch: 16.10.1
Champion Mastery
lvl: 35
360,041
lvl: 15
180,734
lvl: 12
101,668
lvl: 9
67,597
lvl: 8
58,559
lvl: 8
55,267
lvl: 8
53,667
lvl: 7
63,356
lvl: 7
53,355
lvl: 7
48,873
lvl: 7
47,692
lvl: 7
46,123