The summoner name or tag is incorrect
GRANDMASTER I
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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: 16
147,207
lvl: 14
123,283
lvl: 14
119,630
lvl: 13
117,715
lvl: 13
112,881
lvl: 13
112,724
lvl: 13
110,338
lvl: 13
108,830
lvl: 12
108,400
lvl: 12
107,633
lvl: 12
104,168
lvl: 11
96,277