The summoner name or tag is incorrect
cshell #12345
BRONZE 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: 15
167,858
lvl: 10
77,776
lvl: 8
58,336
lvl: 7
45,821
lvl: 6
33,891
lvl: 6
33,015
lvl: 6
32,419
lvl: 5
26,748
lvl: 4
20,611
lvl: 4
20,075
lvl: 4
19,564
lvl: 4
18,683