The last post refers to Tiger Woods.
I think for sports that are heavily weighted toward skilled motions, strokes, swings, are less likely to be helped by general sports supplements. Unless perhaps those supplements can aid concentration or focus. Strength is a positive for golf but, that is largely achieved through training. Some supplements could aid in recovery from exercise, and that can be important.

It is more likely you could find quantifiable gains from supplements, in sports that involve testing the limits of physiological and biological endurance performance.

And then there are drugs, like EPO and CERA, which are illegal in sport and definitely enhance cardiovascular performance in trained endurance athletes.