Alternate Lines Guide: Alternate Spreads and Totals Explained
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Alternate lines let you move a spread or total off its standard number in exchange for a different price. Want more cushion on a favourite? Take an alternate spread at shorter odds. Confident in a blowout? Buy a bigger spread at plus money.
This guide explains how alternate lines are priced, when shifting the number is worth the price change, and how to combine alternate lines with parlays and teasers.
What alternate lines are
An alternate line is any version of a spread or total other than the main one, offered at an adjusted price. If the main spread is -6.5 at -110, the book also lists -3.5, -1.5, -9.5 and more, each with its own odds.
Taking a safer number costs you in price — a -3.5 alternate on a -6.5 favourite might be -200. Taking a riskier number pays more — a -9.5 alternate might be +160.
How alternate lines are priced
Each alternate is priced from the same model as the main line, shifted by the value of the points. Every half-point you gain in your favour shortens the odds; every half-point you give up lengthens them.
Points across key numbers cost more. Moving an NFL favourite from -3.5 to -2.5 crosses 3, the most common margin, so that half-point is priced more steeply than one between, say, -9.5 and -8.5.
Convert the prices to implied probability and you can judge whether the points you gain are worth the price you pay — that comparison is the whole game with alternate lines.
Example bet walkthrough
The main line is the Eagles -6.5 at -110. You expect a comfortable win but want insurance, so you take the alternate -3.5 at -180, staking $90 to win $50.
The Eagles win by 5. On the main -6.5 you would have lost; on the alternate -3.5 you win, collecting $50 profit plus your $90 stake. You paid a higher price for the three points of cushion, and they paid off.
Had you instead taken -9.5 at +150 and the Eagles won by 12, the same $90 would have returned $135 profit. Alternate lines let you dial risk and reward to match your read.
Alternate line strategy tips
Alternate lines are about pricing points correctly:
- Buy safety only through key numbers. Moving a favourite below 3, or an underdog above 3 and 7, is where the extra points matter most.
- Use plus-money alternates when you have a strong blowout or shootout read.
- Compare alternate prices across books — the same alternate number can carry very different odds.
- Stack alternate lines into parlays to lift the payout while keeping each leg realistic.
- Check the alternate price against the implied probability before paying up for points.
Best sportsbooks for alternate lines
For alternate lines, menu depth and fair pricing matter:
- DraftKings — the deepest alternate-spread and alternate-total menus across every major sport.
- FanDuel — granular alternate lines with competitive key-number pricing.
- BetMGM — wide alternate coverage on secondary leagues, where softer numbers appear.
Common alternate line mistakes
Alternate lines cost bettors in two ways:
- Overpaying for points away from key numbers, where the extra half-points rarely change the result.
- Buying so much safety that the price destroys the value — a -3.5 alternate at -300 needs a very high win rate just to break even.
Frequently asked questions
- What are alternate lines?
- Alternate lines are versions of a spread or total other than the main number, each offered at a different price. They let you take a safer line at shorter odds or a riskier line at a bigger payout.
- When should I take an alternate spread?
- When the points you gain cross a key number — such as moving an NFL favourite below 3 — or when you have a strong read on a blowout and want a plus-money alternate. Otherwise the price change rarely justifies it.
- Why does an alternate line cost more?
- Because you are buying points in your favour. Each half-point you gain shortens the odds, and points across key numbers like 3 and 7 cost the most because they change the most outcomes.
- Can I parlay alternate lines?
- Yes. Stacking alternate lines into a parlay is a common way to lift the payout while keeping each leg realistic. As with any parlay, shop each leg, since the compounded vig rewards the best price.
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Educational content for informational purposes only. Not betting or financial advice. Please gamble responsibly. 21+ where applicable.