Something I have useful in college hoops is calculating 1st half totals. usually the numbers are not available till game day. The way I estimate the 1st half total is:
Take posted total and divide by 2 then subtract 4 from that
lets use tonight Virginia/north Carolina game as an example
130 total for full game
divide by 2 65 then subtract 4 61 is the predicted first half total, that's what it was tonight.
this estimate gets you to within a point or 2 of the first half total.
Good luck to all,
let the Madness begin!