Final answer:
The team physician is usually the person responsible for deciding if an athlete can participate in organized athletics after a pre-participation examination.
Step-by-step explanation:
The individual who makes the decision to allow an athlete to participate in organized athletics following a pre-participation examination is generally the team physician. The team physician has the medical expertise to assess whether the athlete is physically capable of participating without undue risk. Athletic trainers and coaches serve roles in preparing, training, and providing care for the athletes, but the final clearance for participation following medical evaluations is typically in the purview of the medical professional, who, in this context, is the team physician.