A marker for a golf flag having a hub constructed of a flexible, resilient material with a central opening dimensioned to receive and resiliently grip the golf flag. The hub also has an axially extending through slot so that the diameter of the opening can be varied by flexing the hub. A plurality of elongated spokes each have an inner end attached to the hub and an outer end spaced radially outwardly from the hub. A ring is attached to the outer end of the spokes and this ring has a through slot aligned with the hub through slot so that widening of both through slots by flexing the ring simultaneously enlarges the central opening of the hub.