The summoner name or tag is incorrect
trebin #1901
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: 80
1,004,952
lvl: 26
288,711
lvl: 13
127,455
lvl: 11
93,147
lvl: 11
92,761
lvl: 10
79,148
lvl: 10
78,865
lvl: 10
77,927
lvl: 9
71,151
lvl: 8
63,613
lvl: 8
58,048
lvl: 7
50,270