The prop in question is Deron Williams o/u 29.5 pts+asts for tonight's game at Orlando. I used a derivative of the game spread/total and Poisson. Deron scores very nearly 2 points per score (ie breaking down 3 pointers, 2 pointers, and a pair of free throws). He also gets very nearly 1 assist per score. He's averaging about 20 points per game, ie 10 scores per game, and about 10 assists per game. The 29.5 line could be modified to be something around 19.5 scores+asts, which is right at his averages for this year.
The Jazz are averaging just over 104 ppg this season, and Deron is about 3 ppg above his career average. In tonight's game the Jazz have a median expected point total of only about 91.5 points (11.5 pt dogs/194.5 total). I feel that at the very least his score expectation could be scaled down from 10 scores to 10*(91.5/104) = 8.8 scores. The assists would probably be scaled down a bit too. But let's be conservative and say 18.8 scores + asts vs an over/under 19.5.
The Poisson calculator gives us about -137 as a fair line for 18.8 expectation vs a line of 19.5. I bet this at -115 at a local book that I use that copies greek prop lines. Since then the line moved against me to -140/+110. So I bet it again. Am I missing something here or do I have a good bet?
The Jazz are averaging just over 104 ppg this season, and Deron is about 3 ppg above his career average. In tonight's game the Jazz have a median expected point total of only about 91.5 points (11.5 pt dogs/194.5 total). I feel that at the very least his score expectation could be scaled down from 10 scores to 10*(91.5/104) = 8.8 scores. The assists would probably be scaled down a bit too. But let's be conservative and say 18.8 scores + asts vs an over/under 19.5.
The Poisson calculator gives us about -137 as a fair line for 18.8 expectation vs a line of 19.5. I bet this at -115 at a local book that I use that copies greek prop lines. Since then the line moved against me to -140/+110. So I bet it again. Am I missing something here or do I have a good bet?