blowouts tend to go under in the 2nd half as teams arent playing as hard in the final minutes, but some teams are able to come back so you have to take that into consideration, it's not cut-and-dried. When teams score very few points in the first a lot of times they go over in the 2nd, like SA last night. I also look at how far the line is 'off'. In other words like NY -4 last night, why should NY be favored by so many if they lost the first half? Just because a team is far behind does not mean they will make the score look decent at the end, especially when they are on the road. Of course, the NBA can be very unpredictable but if you have the right side a point here and a point there will add up throughout the season. The main thing is to practice careful money management, there are many streaks involved in this league and it wont be long before you start seeing "The NBA is fixed" threads. I also look at REB, TO, FT, SHT %, PT DIST, etc. during the game and use this to formulate an opinion. Some days are good, some days are bad, it takes a lot of experience to not get too high or too low, and also dont be biased by a one-game performance, a lot of times a team will win or lose by 30 and come out and have the exact opposite occur in the next game.