Even though the term “click” conjures up a distinct sound one hears, in the context I am referring to here it is more a situation one sees rather than something one hears. Such is the way a young athlete demonstrates the change from just playing a sport as one might during recess to competing in a sport as an athlete.
This is the topic of discussion in Part I & Part II of Bill Wells Discusses The "Second Click" In Youth Sports, Then Asks If There Is A Third, a unique three-phase view of how athletes might move along their competitive path.

Oh MR Mango!!! Is that you in the picture at age,,,30??? and I saw one of you on the high bars at age 18??? I am busting a stitch laughing--you and I are about 60 years old and you really should show your updated picture. And, I heard you are still a gym teacher at the same old school.. WOW can't beleive I am seeing you here. Polly told me to look you up...oh by the way-you spelled a few words wrong here. Luv ya still.