The summoner name or tag is incorrect
squirt #9696
PLATINUM IV
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Match History for Patch: 16.4.1
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Champion Stats for Patch: 16.4.1
Champion Mastery
lvl: 21
198,203
lvl: 11
90,561
lvl: 10
77,028
lvl: 8
54,979
lvl: 7
50,321
lvl: 5
27,077
lvl: 5
26,909
lvl: 5
25,120
lvl: 4
22,692
lvl: 4
16,483
lvl: 4
15,336
lvl: 4
14,975