What is Teaser?
A parlay-style bet where you adjust the spread or total in your favor on each leg in exchange for a worse price.
A 6-point teaser moves the line 6 points in your favor on every leg. Sounds great, but the price changes too — typically from −110 per leg to roughly −120 or worse, and all legs still have to hit. Some teasers can be +EV at NFL key numbers (3 and 7) but most are not. The math is unforgiving once you stack legs.
Related terms
A single bet that combines two or more legs into one ticket — all legs must win for the parlay to pay.
A handicap a sportsbook adds to the underdog (or subtracts from the favorite) to make a moneyline mismatch into a roughly 50/50 market.
The most common margins of victory in a sport — crossing them with a spread or hook adds disproportionate value.
See teaser applied to a real slate
NotaSportsGuru runs the math behind every published leg — Parlay of the Day, player props, match lines — with the model’s expected value and edge on every line.