The summoner name or tag is incorrect
bubblegoose #032
IRON 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: 10
78,341
lvl: 8
59,487
lvl: 8
57,879
lvl: 7
50,436
lvl: 6
43,291
lvl: 6
36,235
lvl: 6
32,798
lvl: 6
32,631
lvl: 5
30,885
lvl: 5
29,467
lvl: 5
27,652
lvl: 5
26,918