Coming off alternate lines, this next topic makes sense to do next.
Buying Points
Buying points is one of the most misunderstood concepts in sports betting. Most bettors buy points emotionally, not mathematically. They pay extra juice to feel safer without understanding how much win probability they are actually gaining. Sportsbooks know this and price point‑buys aggressively, especially around dead numbers. The only way to evaluate buying points correctly is to understand key numbers, margin frequencies, and the true value of each move.
The foundation of buying points is the distribution of NFL scoring margins. Because most scoring plays are worth three or seven points, certain margins occur far more often than others. The most important margin is three, which occurs roughly fifteen percent of the time. Seven occurs roughly nine percent of the time. Six, ten, and four form the secondary tier. One, two, and five are fringe numbers. Everything else is noise. Buying points only has value when the probability gained is greater than the price paid, and that happens almost exclusively when crossing the true key numbers.
The classic example of a valuable point‑buy is moving from +2.5 to +3.5. At +2.5, a team that loses by three is a loss. At +3.5, that same outcome becomes a win. The bettor gains the entire fifteen percent slice of games that land on exactly three. This is a clean, high‑value move because it captures the most common margin in football without paying for unnecessary numbers. The bettor pays for one key event and receives one key event in return.
The opposite example is moving from -2.5 to -3.5. At -2.5, a team that wins by three is a win. At -3.5, that same outcome becomes a loss. The bettor gives away the fifteen percent slice of games that land on exactly three. This is a high‑impact move because it sacrifices the most important margin in football. Books know this and price the move accordingly. Bettors who take -3.5 instead of -2.5 are giving up a major chunk of win probability.
The trap example is moving from -3.5 to -0.5. At -3.5, a team that wins by one, two, or three all result in losses. At -0.5, those same outcomes become wins. The bettor gains the probability of winning by one, two, or three. The problem is that only the three carries meaningful probability. The one‑ and two‑point margins occur far less often. The sportsbook charges the bettor for all three margins even though only one of them has real value. The bettor pays a premium for the illusion of safety. The price per percentage point gained is far worse than the price of moving across three from the other direction.
The numbers make the trap clear. Moving from -3.5 to -0.5 gains roughly twenty percent combined probability, but most of that value comes from the fifteen percent slice at exactly three. The remaining five percent comes from margins of one and two, which are low‑value outcomes. The sportsbook charges the bettor as if all three margins are equally meaningful. They are not. The bettor ends up paying inflated juice for dead numbers and a moneyline‑style framing that offers no additional value.
Buying points across seven has real value but less than three. Moving from +6.5 to +7.5 captures roughly nine percent probability. Moving from -6.5 to -7.5 gives away that same nine percent. These moves matter, but books often price them aggressively because they know bettors overvalue touchdown margins. Buying onto seven is valuable only when the price is reasonable. Buying off seven is almost always overpriced.
Secondary key numbers like six, ten, and four have moderate value. Crossing six captures roughly six percent probability. Crossing ten captures roughly five percent. Crossing four captures roughly five percent. These numbers matter but not enough to justify heavy juice. Books often overcharge for moves that cross these numbers because recreational bettors assume all point‑buys are equally valuable. They are not.
Fringe numbers like one, two, and five have low value. Each occurs roughly three percent of the time. Buying across these numbers is rarely worth the price. Books bundle these numbers into point‑buys to inflate the cost. When a bettor buys points across one, two, and three together, the book charges for all three even though only the three has real value. This is why moves like -3.5 to -0.5 are so overpriced.
Dead numbers like eight, nine, eleven, twelve, and higher have almost no value. These margins occur infrequently and are not worth buying across. Books include these numbers in alternate lines and teaser pricing to create the illusion of value. Sharp bettors ignore them entirely.
The key to buying points is comparing the cost to the probability gained. If the juice increase is greater than the probability increase, the move is negative EV. If the probability increase is greater than the juice increase, the move is positive EV. This rarely happens outside of crossing three or seven. Most point‑buys are traps designed to exploit bettors who want safety rather than value.
Buying points is only valuable when crossing the true key numbers of three and seven at a reasonable price. Secondary numbers like six, ten, and four have limited value. Fringe numbers like one, two, and five are rarely worth buying. Dead numbers are worthless. The sportsbook charges bettors for every number crossed, even when those numbers have little or no impact on win probability. Sharp bettors buy points only when the value gained exceeds the price paid. Recreational bettors buy points to feel safer and end up paying for dead numbers. The difference between winning and losing long‑term is knowing which numbers matter and which numbers are noise.
