栗原あゆみ
On April 10, 2010, Nakagawa made her American debut for the Shimmer Women Athletes promotion in a losing effort against Ayumi Kurihara on "Volume 29". Later that same day on "Volume 30", Nakagawa teamed with Daizee Haze to defeat the team of Jamilia Craft and Misaki Ohata. At the following day's tapings of Volumes 31 and 32, Nakagawa was defeated by Mercedes Martinez and picked up a win over Jessie McKay, respectively. Nakagawa returned to Shimmer five months later on September 11, when she was defeated by Ayako Hamada and Cheerleader Melissa at the tapings of Volumes 33 and 34. The following day on "Volume 35", Nakagawa and Daizee Haze continued their tag team win streak by defeating Pretty Bitchin' (Ariel and Nikki Roxx). On March 26, 2011, Nakagawa returned for her third visit with Shimmer, losing to LuFisto on "Volume 37" and defeating Jessica James on "Volume 38". The following day on "Volume 39", Nakagawa and Haze defeated Jamilia Craft and Mia Yim in a tag team match and were as a result granted a shot at the Shimmer Tag Team Championship. Later that same day on "Volume 40", Nakagawa and Haze defeated the Seven Star Sisters (Hiroyo Matsumoto and Misaki Ohata) to become the fourth Shimmer Tag Team Champions. Nakagawa and Haze made their first title defense on April 2 at Ring of Honor's Honor Takes Center Stage pay-per-view, defeating Ayumi Kurihara and Hiroyo Matsumoto. On October 1 at Shimmer's "Volume 41", Nakagawa and Haze lost the Shimmer Tag Team Championship to Ayako Hamada and Ayumi Kurihara in their second defense. Later that same day on "Volume 42", Nakagawa picked up her biggest singles victory in Shimmer by pinning former Shimmer Champion MsChif to win a four-way match, which also included Kellie Skater and LuFisto. The following day on "Volume 43", Nakagawa was defeated by MsChif in a singles match. Nakagawa was forced to miss Shimmer's March 2012 tapings due to having prior commitments with Pro Wrestling Wave.