A ski sharpening arrangement includes a portable powered grinder adapted to be manipulated by one hand of a user. The arrangement includes a motor assembly spaced from a ski having a top surface, a base, a side edge and a bottom edge coplanar with the base. The motor assembly drives an endless belt having an abrasive surface about an axis of rotation transverse to a plane of the base. The endless belt is entrained about a mounting framework extending from the motor assembly, and engaged against the side edge of the ski to provide sharpening thereof. A support structure is suspended from the mounting framework of the belt and is adapted to be manipulated by another hand of the user for guiding, stabilizing and changing the angle of the abrasive surface relative to the side edge of the ski.