The summoner name or tag is incorrect
luv #0086
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: 51
527,753
lvl: 38
385,123
lvl: 27
263,990
lvl: 25
261,963
lvl: 21
200,315
lvl: 14
125,754
lvl: 12
99,478
lvl: 10
85,077
lvl: 10
81,524
lvl: 9
71,991
lvl: 7
53,120
lvl: 7
45,364