At the risk of pointing out the obvious.
Glamour event: world cup
Duration: 1 month
Number of games: 64
Glamour event: NFL
Duration: 4 month regular season
Number of games per week: 13 to 16 (maximum 64 per month, like World Cup)
Everyday event: MLB
Duration: 6 month regular season
Number of games per day: 15 on most days (400+ games per month)