栗原あゆみ
On November 8, 2009, Hamada made her debut under her full name for Chicago-based all female wrestling promotion Shimmer Women Athletes, defeating Mercedes Martinez in a match taped for "Volume 27" and losing to Sara Del Rey in a match taped for "Volume 28". On February 5, 2010, Shimmer announced that Hamada would be returning to the company on April 11 for the tapings of Volumes 31 and 32. On "Volume 31" she defeated Daizee Haze and on "Volume 32" she was defeated in the main event by Cheerleader Melissa. Hamada returned to Shimmer on September 11, 2010, defeating Tomoka Nakagawa in a match taped for "Volume 33". Later that day on "Volume 34" she was defeated by Jessie McKay in a three–way match, which also included Sara Del Rey. The following day Hamada defeated Shimmer Tag Team Champion Nicole Matthews on "Volume 35" and then took part in an elimination tag team match on "Volume 36", where she, Ayumi Kurihara, Cheerleader Melissa and Serena Deeb defeated Daizee Haze, Madison Eagles, Sara Del Rey and Tomoka Nakagawa. On March 26, 2011, Hamada took part in the tapings of Volumes 37 and 38, during which she defeated Jessie McKay and Ayumi Kurihara, respectively, in singles matches. The following day, after pinning Shimmer Champion Madison Eagles on "Volume 39" in a tag team match, where she teamed with Cheerleader Melissa and Eagles with Sara Del Rey, Hamada was granted a shot at the Shimmer Championship. Later that day, at the tapings of "Volume 40", Hamada was unsuccessful in her attempt to win the title.