The summoner name or tag is incorrect
ferrin #2087
IRON I
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Match History for Patch: 16.6.1
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Champion Stats for Patch: 16.6.1
Champion Mastery
lvl: 8
55,433
lvl: 7
47,064
lvl: 6
34,937
lvl: 6
32,680
lvl: 5
24,193
lvl: 4
16,537
lvl: 4
13,974
lvl: 4
13,774
lvl: 4
13,151
lvl: 4
12,940
lvl: 4
12,926
lvl: 3
9,368