MLB arbitrage, measured
Across 20 US sportsbooks and 375 Major League Baseball games tracked in the last 30 days, the scanner found a cross-book net edge on 2,201 game-markets in 333 games — average 3.87%, largest 14.98%, most recent Sep 19, 2026. The cheapest book for MLB is Hard Rock Bet (OH) (1.96% vig).
MLB vig by sportsbook
| # | Sportsbook | Overall | Moneyline | Spreads | Totals | Lines |
|---|---|---|---|---|---|---|
| 1 | Hard Rock Bet (OH) | 1.96% | 1.87% | 1.72% | 2.30% | 540 |
| 2 | LowVig | 3.00% | 2.43% | 3.06% | 3.52% | 98,883 |
| 3 | BetOnline | 3.57% | 2.43% | 3.62% | 4.68% | 98,931 |
| 4 | BetUS | 3.66% | 2.64% | 3.67% | 4.68% | 87,712 |
| 5 | Hard Rock Bet | 3.86% | 3.75% | 3.76% | 4.07% | 111,929 |
| 6 | BetAnySports | 4.04% | 3.48% | 3.94% | 4.69% | 77,462 |
| 7 | Caesars | 4.13% | 3.11% | 4.44% | 4.84% | 114,239 |
| 8 | Courtside | 4.39% | 3.88% | 4.00% | 6.07% | 13,486 |
| 9 | ESPN BET | 4.45% | 4.08% | 4.53% | 4.74% | 116,738 |
| 10 | FanDuel | 4.56% | 3.80% | 4.78% | 5.10% | 122,962 |
| 11 | Bovada | 4.58% | 4.65% | 4.20% | 4.87% | 114,609 |
| 12 | DraftKings | 4.65% | 4.25% | 4.80% | 4.88% | 116,736 |
| 13 | MyBookie | 4.66% | 4.19% | 4.42% | 5.36% | 93,931 |
| 14 | BetMGM | 4.81% | 4.71% | 4.88% | 4.85% | 111,126 |
| 15 | Fanatics Sportsbook | 4.88% | 4.65% | 5.01% | 4.96% | 108,172 |
| 16 | betPARX | 5.31% | 4.88% | 5.14% | 5.90% | 100,564 |
| 17 | BetRivers | 5.36% | 4.58% | 5.41% | 6.05% | 100,656 |
| 18 | Bally Bet | 5.51% | 5.05% | 5.35% | 6.11% | 100,367 |
| 19 | Fliff | 6.13% | 5.32% | 6.88% | 6.12% | 112,599 |
| 20 | ReBet | 6.47% | 5.81% | 6.78% | 6.81% | 119,516 |
Which books disagree on MLB
| Pair | Game-markets | Avg net edge | Max net edge |
|---|---|---|---|
| FanDuel vs MyBookie | 177 | 4.17% | 14.78% |
| Bovada vs MyBookie | 144 | 3.95% | 14.95% |
| BetMGM vs MyBookie | 142 | 4.56% | 14.79% |
| betPARX vs MyBookie | 136 | 4.31% | 14.62% |
| MyBookie vs Caesars | 127 | 4.64% | 14.96% |
| BetMGM vs betPARX | 111 | 3.52% | 14.52% |
| BetMGM vs Bovada | 103 | 4.44% | 14.96% |
| betPARX vs Caesars | 99 | 3.69% | 13.63% |
| FanDuel vs Caesars | 98 | 3.45% | 14.46% |
| DraftKings vs MyBookie | 93 | 4.95% | 14.21% |
| BetMGM vs Caesars | 93 | 4.12% | 14.88% |
| Fanatics Sportsbook vs MyBookie | 91 | 4.93% | 14.38% |
| betPARX vs FanDuel | 82 | 3.98% | 14.58% |
| FanDuel vs ReBet | 74 | 5.16% | 14.36% |
| betPARX vs Bovada | 73 | 3.33% | 14.08% |
By market type
Daily count, last 30 days
Recent MLB examples
Best detection per game-market, most recent first, net of fees at the reference stake. These windows have closed.
| Game | Market | Books | Net edge | Profit at stake | Detected |
|---|---|---|---|---|---|
| Boston Red Sox @ Tampa Bay Rays | spread 1.5 | Bovada + Fanatics Sportsbook | 0.75% | $18.72 / $2,500 | Sep 19, 1:10 AM ET |
| San Francisco Giants @ Los Angeles Dodgers | spread 5.5 | Fanatics Sportsbook + Caesars | 10.53% | $263.16 / $2,500 | Sep 19, 12:54 AM ET |
| San Francisco Giants @ Los Angeles Dodgers | spread 2.5 | FanDuel + Hard Rock Bet | 2.01% | $50.26 / $2,500 | Sep 19, 12:39 AM ET |
| San Francisco Giants @ Los Angeles Dodgers | total 7.5 | Courtside + Fanatics Sportsbook | 3.45% | $86.17 / $2,500 | Sep 19, 12:39 AM ET |
| New York Yankees @ Arizona Diamondbacks | spread 6.5 | Courtside + ReBet | 12.35% | $308.76 / $2,500 | Sep 19, 12:39 AM ET |
| Miami Marlins @ San Diego Padres | spread 5.5 | BetMGM + Hard Rock Bet | 9.09% | $227.20 / $2,500 | Sep 19, 12:24 AM ET |
| New York Yankees @ Arizona Diamondbacks | total 11.5 | DraftKings + Caesars | 13.63% | $340.82 / $2,500 | Sep 19, 12:24 AM ET |
| Miami Marlins @ San Diego Padres | total 8.5 | betPARX + ReBet | 2.22% | $55.56 / $2,500 | Sep 19, 12:08 AM ET |
| Minnesota Twins @ Los Angeles Angels | total 3.5 | Bally Bet + betPARX | 9.89% | $247.38 / $2,500 | Sep 19, 12:08 AM ET |
| Minnesota Twins @ Los Angeles Angels | spread 2.5 | Bally Bet + betPARX | 9.89% | $247.38 / $2,500 | Sep 19, 12:08 AM ET |
| San Francisco Giants @ Los Angeles Dodgers | moneyline | betPARX + ESPN BET | 2.65% | $66.28 / $2,500 | Sep 18, 11:38 PM ET |
| San Francisco Giants @ Los Angeles Dodgers | spread 1.5 | BetMGM + betPARX | 4.39% | $109.68 / $2,500 | Sep 18, 11:38 PM ET |
| Minnesota Twins @ Los Angeles Angels | total 6.5 | DraftKings + Fanatics Sportsbook | 3.37% | $84.34 / $2,500 | Sep 18, 11:38 PM ET |
| Miami Marlins @ San Diego Padres | moneyline | Bally Bet + Fanatics Sportsbook | 11.09% | $277.22 / $2,500 | Sep 18, 11:07 PM ET |
| Miami Marlins @ San Diego Padres | spread 1.5 | Bally Bet + ESPN BET | 12.92% | $323.01 / $2,500 | Sep 18, 11:07 PM ET |
Frequently asked questions
How much MLB arbitrage is there?
In the last 30 days our scanner recorded a cross-book net edge on 2,201 MLB game-markets across 333 games (of 375 tracked), averaging 3.87% after fees with a peak of 14.98%. Windows close within minutes; the count describes frequency, not availability.
Which sportsbook has the lowest vig on MLB?
Hard Rock Bet (OH) at 1.96% over 30 days of live MLB lines, against a field average of 4.50%. The most expensive is ReBet at 6.47%.
Which books disagree most on MLB?
FanDuel and MyBookie — 177 game-markets in 30 days, average net edge 4.17%. The full pair list is on this page.
Which MLB markets produce arbitrage?
totals (1,058 game-markets, avg 3.57%); spreads (819 game-markets, avg 4.02%); h2h (324 game-markets, avg 3.97%).