Titleist's top 10 nearest neighbors are a dense, golf-specific cluster — equipment brands, tour athletes, a major championship, and golf media — with no single neighbor pulling far ahead of the rest.

Similarity here measures how closely two entities' audiences resemble each other in composition. The scores across Titleist's top 10 span a narrow 0.93-point range, from TaylorMade Golf at 0.97 down to The Open at 0.93, which is the defining feature of a flat shape: no standout, just a tight pack. TaylorMade Golf (0.97) and Rickie Fowler (0.96) sit at the top, followed closely by FootJoy (0.95) and Callaway Golf (0.94). Jason Dufner (0.94) and PING GOLF (0.94) round out the upper tier before the cluster continues through Srixon (0.93), Golf Digest (0.93), Cleveland Golf (0.93), and The Open (0.93).

Tallying by subcategory: the top 10 includes three Fitness-subcategory brands (TaylorMade Golf, Callaway Golf, Srixon), two Athletes (Rickie Fowler, Jason Dufner), one Footwear brand (FootJoy), one Outdoors brand (PING GOLF), one Sports brand (Cleveland Golf), one Magazine (Golf Digest), and one Sporting Event (The Open). Titleist itself is classified as a Fitness brand, so three neighbors share its exact subcategory. The mix is almost entirely golf-vertical — equipment brands, tour players, and golf media — with no crossover into non-golf categories anywhere in the top 10.

The flat shape signals an audience that is deeply embedded in a single sport's ecosystem, distributed evenly across its brands, athletes, and media rather than anchored to any one of them.