| CPC A63B 53/0475 (2013.01) [A63B 53/0408 (2020.08); A63B 2053/0479 (2013.01); A63B 2053/0491 (2013.01); A63B 60/54 (2015.10); A63B 2209/00 (2013.01)] | 13 Claims |

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1. A golf club head comprising:
a hollow body portion having a first interior cavity portion and a face portion, the face portion comprising:
a front surface;
a back surface opposite the front surface;
a face perimeter portion having a perimeter edge defined by a face toe edge, a face heel edge, a face top edge, and a face sole edge;
a face recess portion on the back surface located within the face perimeter portion, the face recess portion having a first depth on the back surface relative to the face perimeter portion;
a back groove in the face recess portion, the back groove having a second depth on the back surface relative to the face perimeter portion, the second depth being greater than the first depth;
a ridge portion extending rearwardly away from the back surface and extending from a portion of the face perimeter portion proximate to the face sole edge toward the face top edge; and
a wall portion having a first wall portion end coupled to the ridge portion and extending rearwardly away from the ridge portion to a second wall portion end;
a first filler material; and
a second filler material,
wherein a volume bound by the face recess portion, the ridge portion, and the wall portion defines a second interior cavity portion,
wherein the first interior cavity portion is at least partially filled with the first filler material, and
wherein the second interior cavity portion is at least partially filled with the second filler material.
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