The summoner name or tag is incorrect
pittbull #206
IRON 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: 28
275,961
lvl: 8
61,496
lvl: 7
46,947
lvl: 3
8,601
lvl: 2
4,788
lvl: 2
4,140
lvl: 2
3,823
lvl: 2
3,471
lvl: 2
2,516
lvl: 2
2,195
lvl: 1
553
lvl: 1
550