The summoner name or tag is incorrect
mint #4444
PLATINUM III
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Match History for Patch: 16.9.1
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Champion Stats for Patch: 16.9.1
Champion Mastery
lvl: 19
223,710
lvl: 16
150,772
lvl: 15
136,627
lvl: 14
123,398
lvl: 12
131,807
lvl: 11
95,532
lvl: 11
129,201
lvl: 11
122,765
lvl: 10
99,967
lvl: 10
107,864
lvl: 9
77,498
lvl: 9
73,164