Key Numbers Deep Dive

Key numbers in NFL betting are margins of victory that occur most frequently due to the NFL's scoring system (touchdowns worth 6+1, field goals worth 3).

NFL Scoring Values

Margin-of-victory distribution, computed from the bundled nflverse game log (7,276 completed games, 1999–2025) — the full margin-by-margin table appears further down this page:

Number 3 is the most important number in NFL betting, representing a one-score game decided by a field goal.

Buying the 3: When It's Worth It

Number 7 is the second most important key number, representing a one-touchdown margin.

Key numbers are foundational to teaser strategy. The Wong Teaser approach specifically targets crossing key numbers:

Optimal 6-Point Teaser Positions

Everything above uses tidy summaries. Here is the raw object underneath: the share of all 7,276 completed NFL games (1999–2025) ending at each margin, straight from the bundled nflverse game log. This is the table the entire half-point economy is built on.

Data: nflverse games.csv bundled with this site (7,276 completed games, 1999–2025), computed by the author. Shares are of all completed games.

Notice what the raw counts fix about folklore: 6 (6.0%) has quietly passed 10 (5.5%) as the third most common margin, 4 and 14 are tied at 4.9%, and the valley margins — 5, 9, 11, 12 — are where games rarely land because no clean field-goal/touchdown combination produces them.

The 15.1% figure pools every game. What a bettor actually faces is sharper: when the market expects a close game, the 3 gets more likely, not less. Conditioning on the closing spread:

Data: nflverse games.csv bundled with this site (7,276 completed games, 1999–2025), computed by the author. The “lands on 3” rows count games ending at a 3-point margin in either direction; push rows count exact landings on the signed spread.

This is why the half-point around 3 is the most expensive purchase in football. Moving from −3 to −2.5 turns a push into a win 9.0% of the time; at −110 that is worth about 8 cents per dollar staked (0.090 × 0.909 — exact math on the computed frequency). Books typically charge 20–25 cents to cross the 3 precisely because the naive 10-cents-per-half-point rule undercharges it. At 7, the same arithmetic gives about 6 cents (0.065 × 0.909).

• Key numbers drift. In this data the 3 peaked at 16.9% of games in 1999–2004 and runs about 15% since 2017; 7 has slipped from 9.9% to 8.1% across the same eras while 6 and 8 grew with two-point tries. The hierarchy is stable; the decimals are not.
• Knowing the table is not an edge. The market prices these frequencies — that is exactly why lines stick on 3 and why hooks around it cost extra. This page explains prices; it does not beat them.
• Pooled frequencies are not per-game probabilities. A specific matchup's margin distribution depends on its spread and total, as the conditional table shows.

Keep reading: the key-numbers explainer for the full skyline chart, most common final scores for which exact scorelines produce these margins, and teaser strategy for the bet type built entirely on this table.