A Shin Nocturne is a 3-year-old bay filly from Japan, trained by Kazuya Sakamoto. She is the offspring of the stallion Greater London and the mare A Shin Heket. Throughout her career, A Shin Nocturne has won three races. On April 4, 2024, at Sonoda, she was ridden by Tatsuya Takemura and achieved her most notable victory, earning $907,200 by defeating Techno Happy. She has been a profitable investment for bettors, offering a 100 percent return on investment for those who backed her throughout her career.