Free MLB Run Line Calculator
Use this free MLB run line calculator to calculate baseball run line bets instantly. Compare a team’s moneyline with -1 and -1.5 run line prices, split the stake correctly, and see the potential payout and effective odds before placing a bet.
- Compare moneyline, -1 and -1.5 prices
- Calculate split stakes and payouts instantly
- Free to use with no signup required
The calculator opens on the standard MLB -1 setting and also supports -0.75, -1.25, +0.75, +1.25, and other alternate baseball run lines.
MLB Runline Calculator
Convert moneyline and runline odds into synthetic Asian handicap risk and win amounts.
Formula Result
| Runline Risk | — |
|---|---|
| Moneyline Risk | — |
| Total Risk | — |
| To Win | — |
| Effective Odds | — |
Risking $100.00
| Runline Risk | — |
|---|---|
| Moneyline Risk | — |
| Total Risk | — |
| To Win | — |
| Effective Odds | — |
To Win $100.00
| Runline Risk | — |
|---|---|
| Moneyline Risk | — |
| Total Risk | — |
| To Win | — |
| Effective Odds | — |
How to use this calculator
Select the Asian handicap, enter the moneyline and matching runline odds, then choose either a risk amount or a target win amount. The calculator shows the runline stake, moneyline stake, total risk, target win, and effective American odds.
- Negative handicaps use favorite-side moneyline plus minus runline odds.
- Positive handicaps use underdog-side moneyline plus plus runline odds.
- The formulas were converted from the final PCG spreadsheet version.
Embed This MLB Runline Calculator
You may embed this free MLB runline calculator on a baseball, sports-betting, or educational website. Copy the code below and paste it into an HTML or custom-code block. Embedding is permitted only while the visible ProComputerGambler attribution and followed link remain intact. The calculator itself also displays the required attribution.
MLB -1 Runline Example
Suppose an MLB favorite is -150 on the moneyline and +130 on the -1.5 run line. To create a synthetic -1 position while risking $100, the wager is split so the moneyline profit offsets the runline loss when the team wins by exactly one run.
| Bet component | Odds | Stake | Potential profit |
|---|---|---|---|
| Moneyline | -150 | $60.00 | $40.00 |
| Run line -1.5 | +130 | $40.00 | $52.00 |
| Combined synthetic -1 | About -109 | $100.00 | $92.00 |
What Happens in Each Game Outcome?
| Game result | Bet result | Net result |
|---|---|---|
| Favorite wins by 2+ runs | Both wagers win | +$92.00 |
| Favorite wins by exactly 1 run | Moneyline wins $40; runline loses $40 | $0.00 push |
| Favorite loses | Both wagers lose | -$100.00 |
Formula source: the final ProComputerGambler runline workbook. Example math checked July 18, 2026. Figures are rounded to the nearest cent; always confirm the prices and permitted stake increments at your sportsbook.
How the MLB Runline Calculator Works
- Select -1.00 for the standard synthetic MLB -1 runline.
- Enter the team’s moneyline odds and its matching -1.5 runline odds.
- Enter either the amount you want to risk or the amount you want to win.
- Review the moneyline stake, runline stake, total risk, effective American odds, and outcome scenarios.
The standard -1 calculation balances the two stakes so that a one-run win is a push. A win by two or more runs wins both wagers, while a loss drops both portions. For a deeper walkthrough, read how to calculate a -1 runline bet in MLB.
When a Synthetic -1 Runline May Be Useful
A synthetic -1 can sit between an expensive moneyline and the higher-risk -1.5 run line. It may be useful when you want protection against a one-run win but do not want to pay the full moneyline price.
- Use the effective odds to compare the combined position with the sportsbook’s listed -1 price, if one is offered.
- Compare the cost of one-run protection against the additional payout available on -1.5.
- Remember that the calculator explains the wager structure; it does not predict the winner or determine whether the price has betting value.
If you are choosing between the two structures, see -1 runline vs. -1.5 runline.
Alternate MLB Runline and Asian Handicap Options
The advanced selector also supports -0.75, -1.25, -1.75, -2.25, +0.75, +1.00, +1.25, +1.75, and +2.25 positions. These split handicaps combine related moneyline and runline outcomes to create a different risk and payout profile. Negative values generally describe favorite-side positions; positive values describe underdog-side positions.
For the market structure behind these positions, read Asian Handicap Betting Explained for MLB Runlines.
Compare the Calculated Price With PCG Raw Numbers
The calculator explains the price and payout structure. ProComputerGambler Raw Numbers provides the independent projections and market context used to evaluate where that price sits.
MLB Runline Calculator FAQ
What is an MLB runline calculator?
An MLB runline calculator combines moneyline and standard baseball runline odds into a split position. It calculates the stake on each portion, total risk, potential profit, and effective American odds.
How do you create an MLB -1 runline?
Split the total stake between the favorite’s moneyline and -1.5 runline so the moneyline profit equals the amount risked on -1.5. A one-run win then produces a push, while a win by two or more runs wins both wagers.
Is a synthetic -1 always better than the moneyline or -1.5?
No. The better structure depends on the available prices and how much you value protection against a one-run result. Compare the calculator’s effective odds with both straight prices before choosing.
What is an alternate MLB runline?
An alternate runline uses a handicap other than the standard -1.5 or +1.5. Split values such as -0.75, -1.25, +0.75, and +1.25 combine two related outcomes and therefore have different settlement rules.
Related MLB Runline Research
- MLB Run Line Trends: Moneyline vs. Runline Pricing
- MLB One-Run Game Betting Trends Since 2004
- MLB Runline Betting Trends Since 2004
- MLB Sharp Money Tracker
- More Sports Betting Calculators and Tools
This calculator is an educational betting-math tool. It does not predict outcomes or recommend a wager. Verify all figures before placing a bet and wager only where legal.