I'm sure I can help you here ck.
I have some work to do so I'll come back to this thread but I'm not sure what your asking.
Do you want final scores, closing lines, margins of scores and lines (which can be tricky in baseball because of the value of 1/2 points, I feel we should adjust them based on price).
Do you just want average socres in day games vs night games?
What's a night game? Just on Sunday nights? Is there a certain time after which it's a night game?
A lot of games start near 7 or 7:30 Easter time, but that's just 4 or 4:30 on the west coast?
Give me an Eastern time cut off, where it's no longer day, but night. That time could be different in March, June and August for example as well, but it doesn' have to be.
Leave it to me to comlicate a simple question but to anser it right, it's a little more complicated than it sounds.