The summoner name or tag is incorrect
kaiser #354
SILVER I
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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: 25
248,862
lvl: 24
230,382
lvl: 20
186,867
lvl: 19
176,291
lvl: 11
97,348
lvl: 11
95,272
lvl: 11
93,180
lvl: 11
92,690
lvl: 9
67,410
lvl: 9
66,036
lvl: 8
64,411
lvl: 8
64,187