The summoner name or tag is incorrect
pyro #3276
GOLD 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: 17
154,296
lvl: 14
119,715
lvl: 10
79,985
lvl: 8
61,113
lvl: 8
60,189
lvl: 8
58,299
lvl: 8
57,775
lvl: 8
54,314
lvl: 7
52,580
lvl: 7
50,535
lvl: 7
48,709
lvl: 7
48,251