Do you remember signing the student-athlete statement at the beginning of your career as a student-athlete? Well, it says that

"You affirm that you meet the NCAA regulations regarding eligibility, recruitment, financial aid, amateur status and involvement in organized gambling. In other words, it's against the rules!!!! (NCAA Bylaw 10.3)

See www.ncaa.org

There are good reasons for this rule. Gambling adversely affects the integrity of sporting competitions. Gambling is also directly related to a several other illegal activities such as the sale of narcotics and loan sharking.