Where do you get a "six year" clock. Plus the clock starts when somebody attends a class as a properly registered student, not necessarily when you first play a sport (although that is one of the exceptions to rule 14.2.1.1, if you participate in a sport before attending a class.) A simple check of the NCAA manual reveals the following:
14.2.1 Five-Year Rule. A student-athlete shall complete his or her seasons of participation within five calendar years from the beginning of the semester or quarter in which the student-athlete first registered for a minimum full-time program of studies in a collegiate institution, with time spent in the armed services, on official church missions or with recognized foreign aid services of the U.S. government being excepted. For foreign students, service in the armed forces or on an official church mission of the student’s home country is considered equivalent to such service in the United States.
14.2.1.1 Determining the Start of the Five-Year Period. For purposes of starting the count of time under the five-year rule, a student-athlete shall be considered registered at a collegiate institution (domestic or foreign; see Bylaw 14.02.3) when the student-athlete initially registers in a regular term (semester or quarter) of an academic year for a minimum full-time program of studies, as determined by the institution, and attends the student’s first day of classes for that term (see Bylaw 14.2.2).
There are various exceptions, the best known being a "medical redshirt" (actually a hardship waiver) where a sixth year is granted in certain situations due to multiple seasons lost to injury. If I recall correctly, one of our football players is in his sixth season.
This thread is a repeat of one from the spring/summer. Surprised it wasn't already merged.