Calculate middle bet opportunities, probability, and expected value
Select the type of middle bet
Your first spread bet
Opposite spread after line move
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NFL: ~2.5-3% per point | NBA: ~1.5-2% per point
Positive expected value middle found
Total Staked
$220
Max Profit
$200
Expected Value
$22
EV %
+10.14%
Common middle bet scenarios
Monte Carlo simulation with 1,000 iterations
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Understanding the middle betting strategy
3, 7, 10 - Most common margins of victory. Middles through these are most valuable.
Each point ≈ 2.5-3% probability in NFL. A 4-point middle ≈ 10-12% chance.
TL;DR summary
A middle bet (or "middling") occurs when you bet both sides of a point spread at different numbers, creating a chance to win both bets. For example, betting Team A -3 and later Team A +7 means if Team A wins by 4, 5, or 6 points, you win BOTH bets. The middle range is the "sweet spot" where both outcomes win. Middle opportunities arise when lines move significantly.
Important things to know
Common questions about middle betting
A middle bet involves placing wagers on both sides of a point spread at different numbers. If the final margin lands between your two spreads (the "middle"), you win both bets. This creates a high-reward scenario with limited downside.
Middles typically occur when lines move significantly between when you place your first bet and when you can place the opposite side. This happens due to injury news, sharp money, or public betting patterns. Live betting during games also creates middle chances.
For NFL, each point in the middle represents roughly 2.5-3% probability. A 4-point middle (e.g., -3 to +7) covers about 10-12% of outcomes. Key numbers like 3 and 7 are more common margins, so middles including these numbers are more valuable.
The main risk is losing the juice on both bets if the result falls outside your middle. With standard -110 odds on both sides, you risk about 10% on losses but can win nearly 200% on a successful middle. The expected value depends on middle probability.
No. The middle must be wide enough to justify the combined juice. A 1-point middle (about 3% chance) typically doesn't overcome the 10% juice on losing both sides. Generally, 3+ point middles start becoming profitable.
Football (NFL and college) is best due to low-scoring nature and key numbers. Basketball has more variance but faster line movements create opportunities. Baseball run lines rarely move enough. Hockey puck lines are similar to baseball.