The summoner name or tag is incorrect
salys #6969
PLATINUM III
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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: 15
134,412
lvl: 14
174,740
lvl: 13
116,149
lvl: 13
115,881
lvl: 12
103,267
lvl: 10
76,865
lvl: 9
68,868
lvl: 8
62,829
lvl: 8
59,519
lvl: 7
53,500
lvl: 7
50,972
lvl: 7
50,376