A Shin Undine is a 5-year-old mare from Ireland, trained by G Ahern in Cork. She is the offspring of the stallion Slade Power and the mare La Ina. Throughout her career, A Shin Undine has achieved one victory. On May 10, 2023, at Gowran Park, she was ridden by M A Enright and secured her biggest win thus far, earning $6,412 in the Save 33% Buying Tickets Online Handicap (47-70) (Div 1), where she triumphed over Narlita.