Chosen Elite has Downed Operator IX on October 9th on 16m Hardmode
http://imageshack.us/a/img225/975/operatorix.png
Also, On October 10th, we downed Kephess the Undying on 16m Hardmode
http://imageshack.us/a/img826/11/kephesstheundying.png
My reported times are Eastern