The summoner name or tag is incorrect
simple #0748
SILVER IV
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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: 18
238,617
lvl: 15
136,203
lvl: 6
36,813
lvl: 5
23,657
lvl: 4
16,337
lvl: 3
8,861
lvl: 3
8,533
lvl: 3
6,939
lvl: 3
6,742
lvl: 3
12,273
lvl: 3
12,099
lvl: 3
11,595