The summoner name or tag is incorrect
mzkp #100
SILVER III
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Match History for Patch: 16.6.1
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Champion Stats for Patch: 16.6.1
Champion Mastery
lvl: 15
137,852
lvl: 15
133,680
lvl: 15
132,207
lvl: 12
98,113
lvl: 9
68,329
lvl: 8
56,663
lvl: 7
49,959
lvl: 6
32,784
lvl: 5
31,278
lvl: 5
31,102
lvl: 5
29,945
lvl: 5
29,123