The summoner name or tag is incorrect
sirius #01010
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Match History for Patch: 16.7.1
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Champion Stats for Patch: 16.7.1
Champion Mastery
lvl: 18
171,744
lvl: 13
116,646
lvl: 12
98,631
lvl: 12
117,379
lvl: 12
106,481
lvl: 11
90,354
lvl: 11
89,664
lvl: 11
88,023
lvl: 11
87,797
lvl: 10
96,163
lvl: 10
83,250
lvl: 10
82,338