The summoner name or tag is incorrect
element #0331
SILVER 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: 28
312,971
lvl: 17
158,622
lvl: 11
98,228
lvl: 8
60,077
lvl: 7
53,414
lvl: 7
50,122
lvl: 7
38,164
lvl: 6
37,966
lvl: 6
32,456
lvl: 6
30,187
lvl: 5
29,741
lvl: 5
28,617