The summoner name or tag is incorrect
echo #19889
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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: 35
364,309
lvl: 16
150,259
lvl: 16
143,057
lvl: 11
107,560
lvl: 10
79,078
lvl: 9
66,120
lvl: 8
62,775
lvl: 8
62,492
lvl: 8
54,906
lvl: 7
50,580
lvl: 7
45,339
lvl: 7
39,054