The Phobians secured a slim win over Karela United in the opening Group B encounter on Saturday.
A solitary strike through midfielder Isaac Mensah was enough to hand all three points to Hearts Of Oak, in the ongoing Ghalca G8 tournament in Cape Coast.
Mensah snatched the only goal of the game in the 28th minute, heading home a nicely taken cross from striker Cosmos Dauda.
Karela fought hard to level up in the second half but lack of precision on the part of their attackers cost them.
And the Rainbow Club organized their defence to hold on to the goal to seal the needed win.
Karela United left-back Ibrahim Moro was adjudged man-of-the-match.
Hearts XI: Benjamin Mensah, Christopher Bonney, Joshua Otoo, Richard Akrofi, Inusah Musah ©, Alhassan Amin/61’ Benjamin Kotey, Patrick Razak, Malik Akowuah/72’ Daniel Kordie, Cosmos Dauda/84’ Selasi Heymann, Samudeen Ibrahim, Isaac Mensah.
Karela Utd XI: Nii Hammond Kalala – Ibrahim Moro, Ampem Da Costa, Kwadwo Addae ©, Ismail Ganiu – Vincent Bekoe/68’ Solomon Taylor, Emmanuel Keyekeh, Ourega Jean Vital, Emmanuel Mintah/54’ Alhaji Sanni, Emmanuel Osei Baffour – Donald Wellington/74’ William Opoku Mensah