Skip to content
Access: Anonymous access. Content follows.
Reading progress is unavailable until the article can be measured.
learn

Odds Converter, Explained With Our Own Board

Read the price, role, and market first Spread prices and moneylines both convert with the same formula but answer different questions, shown on two live Week 1 games.

5 sections

The House

Renamed to Model Desk on 2026-09-09. Kept for the posts published under the old name.

Updated Sep 7, 2026 · Week 1 board.

Two prices, one game

A moneyline price answers who wins. A spread price answers whether the favorite covers the posted margin, which on a close game is a much narrower question. Pinnacle has Bills at Texans, kickoff Sunday, Sep 13 at 1:00 PM ET, with the Texans getting 1 point at -115, and a moneyline of -108 Texans and -104 Bills. DraftKings has the same game with the Texans favored by 1.5 at +102, and a moneyline of -110 on each side.

The two books disagree about which team is favored. Pinnacle has the Bills laying 1 point. DraftKings has the Texans laying 1.5. Both quotes are live on the same game.

Converting the spread price and the moneyline separately

Pinnacle's Texans spread price of -115 converts the negative-price way, 115 divided by 115 plus 100, which is 53.49%. Pinnacle's Texans moneyline of -108 converts to 108 divided by 108 plus 100, or 51.92%. Those land near each other, 53.49% against 51.92%, because the game is near even on both markets at that book.

DraftKings' Texans spread price of +102 takes the positive-price form, 100 divided by 102 plus 100, or 49.50%. Its Texans moneyline of -110 converts to 110 divided by 110 plus 100, or 52.38%. Those two sit within three points of each other as well. A near-even spread and a near-even moneyline are describing the same thing, a game with little between the teams, whichever side a book calls the favorite.

A game where the two prices are not close at all

DraftKings prices Cardinals at Chargers, kickoff Sunday, Sep 13 at 4:25 PM ET, with the Chargers laying 10 at a spread price of -105. That converts to 105 divided by 105 plus 100, or 51.22%. The Chargers' moneyline on the same board is -500, which converts to 500 divided by 500 plus 100, or 83.33%. Same game, same book, and the two converted numbers stand 32.11 points apart.

They measure different bets. Covering 10 points is nearly even money. Winning the game outright is nowhere near it.

GameBookMarketPriceImplied probability
Buffalo at HoustonPinnacleSpread (Texans +1)-11553.49%
Buffalo at HoustonPinnacleMoneyline (Texans)-10851.92%
Buffalo at HoustonDraftKingsSpread (Texans -1.5)+10249.50%
Buffalo at HoustonDraftKingsMoneyline (Texans)-11052.38%
Arizona at LA ChargersDraftKingsSpread (Chargers -10)-10551.22%
Arizona at LA ChargersDraftKingsMoneyline (Chargers)-50083.33%

Why the gap between the two changes by game

Bills at Texans is tight enough on both markets that the two converted numbers come out within a few points. Covering a 1-to-1.5-point margin and winning outright are almost the same question when the teams are level. Cardinals at Chargers is not tight. Covering 10 points and winning outright are separate questions there, and the converted numbers land 32.11 points apart.

The gap tracks the size of the spread. A 1-to-1.5-point game makes a small one. A 10-point game makes a large one.

Put either price into the odds converter and you get back a correct implied chance every time. The mistake to watch for is reading a converted spread price as though it answered the moneyline's question. Neither market is more real than the other. Neither percentage is wrong.

They are correct answers to two different questions about one game. If you want a check on your own arithmetic, convert both sides of one market and see whether the pair sums past 100%. When it does not, one of the two prices went in wrong.

Both markets for every Week 1 game sit on the live odds board. A companion explainer on spread betting takes the point-margin market on its own terms, and one on moneyline strategy does the same for winning outright. Every price quoted here is pregame and live. A price that has moved since Sep 7 converts to a different number, and the arithmetic on it does not change.

Sources

Pinnacle and DraftKings boards, pulled Sep 7, 2026. On every game we checked, the two converted prices come together when the spread is small and pull apart when it is large. Watch any game whose spread moves more than a point before Sunday's kickoff, then run the comparison again.

Frequently asked questions

Do a spread price and a moneyline convert with the same formula?
Yes. Both are American odds and both take the same negative-price or positive-price formula. What changes is the question the market is answering.
Why are Pinnacle's spread and moneyline numbers close on the Bills-Texans game?
The game is near even on both markets. A 1-to-1.5-point spread and a near-even moneyline describe two teams with little between them.
Why are DraftKings' spread and moneyline numbers so far apart on the Cardinals-Chargers game?
The Chargers are laying 10. Covering 10 points converts to 51.22%. Winning outright at -500 converts to 83.33%. That is a 32.11-point gap.
Do Pinnacle and DraftKings agree on who is favored in the Bills-Texans game?
No. Pinnacle has the Bills laying 1 point. DraftKings has the Texans laying 1.5. Both are current quotes on the same game.
Can a spread price's converted number be compared directly to a moneyline's converted number?
Both convert to valid implied chances, but they answer different questions, covering a point margin against winning outright. Treating the two numbers as interchangeable is the mistake to avoid.
Share this guide Help another reader make a sharper decision.

Get picks in your inbox

One email, every slate — ranked edges, no touts. Unsubscribe any time.

Continue with evidence

Related reading and source status

Related Reads

How to Calculate Edge in Sports Betting: Gap, Not Guessing — Shark Snip
Beginner Guides

How to Calculate Edge in Sports Betting: Gap, Not Guessing

Edge in sports betting is predicted value minus the market line — worked here on a real Week 1 house pick with the exact subtraction shown.

Sep 3, 2026 5 min read
A parlay betting boost raises the payout, not your odds — Shark Snip
Beginner Guides

A parlay betting boost raises the payout, not your odds

A boost multiplies the payout after the fact. A real three-leg parlay from tonight's board shows the math with and without one.

Sep 2, 2026 4 min read
Odds Convertor: Why a Spread Alone Can't Be Converted — Shark Snip
Beginner Guides

Odds Convertor: Why a Spread Alone Can't Be Converted

A spread number alone has no win rate. Our college board proves it with no price at all. Our NFL board proves it with a price that shifts by book.

Sep 2, 2026 4 min read

3 related posts

No data

No graded picks from this article's sources yet

No tracked source has a graded 90-day record for this sport yet. Source scorecards fill after their picks are graded. The house record is separate: see /picks.