After looking at the in-game odds for all seven victories, the site combined the numbers and determined the probability to win all of them under the same circumstances was 0.0025 percent, or one in every 40,000 chances (the website incorrectly says one in 400). 

WEEK 13 PICKS: Straight up | Against the spread

For context, here are the live in-game odds provided by the website:

The Lions will face the Saints this week in what will probably be another close contest.