Mahomes as a big favorite?

I remember reading that Patrick Mahomes was lights out as an underdog back in the day, but hasn't been nearly as good as a big favorite. He's 37-30 ATS or something when favored by double digits (or by more than a TD?)? Does anybody have access to a database that I can't find on google? TIA

I don't know how to query for a player.  I just looked into the PM data at Pro Football Reference to find out that he became the KC starter in the 2018 season.

I next went to Gimme the Dog and ran this query:

team = Chiefs and season > 2017 and line < -7.2

SU:  44-3 (10.7,93.6%)

ATS:  19-26-2 (-0.1,42.2%)

That is not very good, but that average ATS margin is way too small to fade.

Thanks for that. The margin is the -0.1 that I see? I'm seeing -7.2 meaning the same as -7.5, basically? The 10.7 is the average margin under those circumstances? 

-3 and under he has a very good ATS record.

-3.5 or higher he has a losing record but has been good recently. He might be close to .500 now after his recent performances going back to last year I think.

I'd be interested in the -3.5 number too, I hadn't heard the troubles go that low.

Of course they're not his troubles, I don't mean it like that, it's mostly a reflection of the books' and market's overvaluing the team.

well if you subscribe to marc larences plat book every game n spread are posted

also here on covers go to teams stabdibgs then click season but no longer gives past years