The summoner name or tag is incorrect
spider #guy
SILVER I
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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: 91
977,652
lvl: 70
746,436
lvl: 48
500,739
lvl: 39
447,186
lvl: 31
324,511
lvl: 26
257,004
lvl: 23
264,106
lvl: 23
221,072
lvl: 22
224,288
lvl: 20
242,102
lvl: 14
154,099
lvl: 12
108,181