People have been misunderstanding this saying since the dawn of time. They take it to mean, that now, since we already beat the Vikings twice, we don't want to face them again, because hey, it's tough to beat a team 3 times in a season!
The reason it is "tough" to beat a team 3 times in a season is 1) teams will very rarely meet 3 times in a season, and if they do, 2) there's at least a 50% chance that will have split their first two games, making it impossible for either to beat the other 3 times.
Compare this to a 3 shot foul in basketball. It's hard to make all 3 free throws, right? That's what they say. But, if the shooter makes the first two and is a 75% free throw shooter, his chances of making the third are still 75%. Each event is independent. His chances don't go down for the third just because he made the first two.
Given two already secured victories, when teams meet a third time, the 2-0 team, historically, also wins the 3rd match, at about a 70% success rate. This is obviously not a guarantee, but it is a very long ways from being the difficult task that everyone seems to think it is going into a third meeting.
That is all.
The reason it is "tough" to beat a team 3 times in a season is 1) teams will very rarely meet 3 times in a season, and if they do, 2) there's at least a 50% chance that will have split their first two games, making it impossible for either to beat the other 3 times.
Compare this to a 3 shot foul in basketball. It's hard to make all 3 free throws, right? That's what they say. But, if the shooter makes the first two and is a 75% free throw shooter, his chances of making the third are still 75%. Each event is independent. His chances don't go down for the third just because he made the first two.
Given two already secured victories, when teams meet a third time, the 2-0 team, historically, also wins the 3rd match, at about a 70% success rate. This is obviously not a guarantee, but it is a very long ways from being the difficult task that everyone seems to think it is going into a third meeting.
That is all.