I'd guess 9.
Curious if you ever do sports wagering?
I don't know anything about it except what I hear Bill Simmons talking about on his podcast.
Honestly, I came up with 9 by subtracting the Celts' point differential to date (about 5.5) from the Warriors' point differential to date (about 14.5).
It's a game on the Celts home court so I think you'd have to adjust a couple points in the Celts favor for that. Dunno how you want to take into account injuries to Klay versus injuries to Smart.
I'm not a gambler. Most I do any given year is fantasy football.
I got into a few years back when my friend was doing it for a living. It is nothing like what the average person thinks sports gambling is like, just hours of him studying spread sheets and looking for mistakes and occasionally making to opposite bets from different books that net him a small profit regardless of the games outcomes (in some cases it isn't even what the average person would call gambling).
I learned a lot from this and occasionally dabble it. With respect to this game, in the NBA home
court is worth anything from 2.5 to 3.5 points depending on the team. This is the part that the average casual better doesn't usually think about (and it has been proven to be an accurate number for many many years. So if this game were in Golden State you would be subtracting 3 points from the celtics and adding it to the warriors. So with a number of 9 that means they would be 15 point dogs in Oracle. While what the Warriors are doing is unprecedented there would never be a line that high for a playoff caliber team like the Celtics.
For that reason it would really shock me if this got higher than 7 and probably would open a little lower.