I looked into PRI playoff only for conference finals...................went back 5 years but couldn't find 2014 or 2013 but did have 2012. Could of found those 2 years if I wanted to go through other things but choose not to.
In those 6 years............my lines was...............6-5-1 ATS.............WITH A 6 PT diff to closing line 5-1-1 ATS.......which means under a 6 pt diff is 1-4 ATS ......
WENT 2-0 ATS 1 TIME
1-0-1 ATS 1 time
1-1 ATS 3 TIMES
0-2 ATS 1 TIME
IT DOES NOT GO 0-2 ATS very often, although we don't have alot of season but still appears it does not. These indicators seem to go 2-0 ATS and 1-1 ATS about the same number of years, with maybe the 1-1 being slightly ahead, but rarely going 0-2.
If that's the case then KC has to cover or one PR is going 0-2, either regular season or playoff only.
Playoff only only went 0-2 in 2019, last year but both games were very close to actaul line and 9ers -7.68 over Packers with line opening -7, then to -7.5 then closing at -8. So only 0-2 based on that closing line but easy enough to win that game before line went to -8.
2020....................
Bucs -3.39 over Packers
KC -5.84 over Bills ....with both QB's
KC -9.02 ....with only Mahomes in the game
we don't know how Mahomes would of finished the game, he could of played better, or worse or about the same. He may be somewhat limited as well so even if we use both QB's KC a lean .
On the surface that record with a 6 pt diff looks pretty strong, however when we look deeper we find that 3 of the winning teams were also fav big in regular season, 2 by over 6 pts to closing line and 1 by 5.48 to closing line, opposite of the Bucs here who are , my line is almost to 6 pt diff on GB in regular season.
And the other 2 winners my lines in regular season was very small diff less then 2 pts in both .
There is one game almost exactly like this game...2016 Pats VS Steelers.
Steelers -.14 over Pats in playoff only, line opend Pitt +6 which was a 6 pt diff but went to +5.5 which then was not, just under.
Regular season line was...Pats -10.46...almost a 5 pt diff....and the regular season PR I was correct.
Based on what I see here, seems the playoff only is very good if regular season line is close to actual line, but if regular season line is not close then regular season wins out.