The summoner name or tag is incorrect
white #1470
GOLD II
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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: 20
236,241
lvl: 16
198,884
lvl: 16
183,415
lvl: 15
133,247
lvl: 13
137,135
lvl: 12
146,340
lvl: 12
107,805
lvl: 11
114,791
lvl: 10
110,730
lvl: 10
107,776
lvl: 9
91,801
lvl: 9
74,483