The summoner name or tag is incorrect
bugatti #001
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: 10
84,439
lvl: 10
79,687
lvl: 8
76,090
lvl: 7
50,636
lvl: 6
39,392
lvl: 5
29,077
lvl: 5
26,449
lvl: 5
25,834
lvl: 5
25,043
lvl: 4
19,233
lvl: 4
17,256
lvl: 4
16,300