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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).

Games with an arb
333
of 375 tracked
Game-markets
2,201
5,053 detections
Avg net edge
3.87%
max 14.98%
Field vig
4.50%
20 books

MLB vig by sportsbook

#SportsbookOverallMoneylineSpreadsTotalsLines
1Hard Rock Bet (OH)1.96%1.87%1.72%2.30%540
2LowVig3.00%2.43%3.06%3.52%98,883
3BetOnline3.57%2.43%3.62%4.68%98,931
4BetUS3.66%2.64%3.67%4.68%87,712
5Hard Rock Bet3.86%3.75%3.76%4.07%111,929
6BetAnySports4.04%3.48%3.94%4.69%77,462
7Caesars4.13%3.11%4.44%4.84%114,239
8Courtside4.39%3.88%4.00%6.07%13,486
9ESPN BET4.45%4.08%4.53%4.74%116,738
10FanDuel4.56%3.80%4.78%5.10%122,962
11Bovada4.58%4.65%4.20%4.87%114,609
12DraftKings4.65%4.25%4.80%4.88%116,736
13MyBookie4.66%4.19%4.42%5.36%93,931
14BetMGM4.81%4.71%4.88%4.85%111,126
15Fanatics Sportsbook4.88%4.65%5.01%4.96%108,172
16betPARX5.31%4.88%5.14%5.90%100,564
17BetRivers5.36%4.58%5.41%6.05%100,656
18Bally Bet5.51%5.05%5.35%6.11%100,367
19Fliff6.13%5.32%6.88%6.12%112,599
20ReBet6.47%5.81%6.78%6.81%119,516

Which books disagree on MLB

PairGame-marketsAvg net edgeMax net edge
FanDuel vs MyBookie1774.17%14.78%
Bovada vs MyBookie1443.95%14.95%
BetMGM vs MyBookie1424.56%14.79%
betPARX vs MyBookie1364.31%14.62%
MyBookie vs Caesars1274.64%14.96%
BetMGM vs betPARX1113.52%14.52%
BetMGM vs Bovada1034.44%14.96%
betPARX vs Caesars993.69%13.63%
FanDuel vs Caesars983.45%14.46%
DraftKings vs MyBookie934.95%14.21%
BetMGM vs Caesars934.12%14.88%
Fanatics Sportsbook vs MyBookie914.93%14.38%
betPARX vs FanDuel823.98%14.58%
FanDuel vs ReBet745.16%14.36%
betPARX vs Bovada733.33%14.08%

By market type

MarketGame-markets with an arbAvg net edge
totals1,0583.57%
spreads8194.02%
Moneyline3243.97%

Daily count, last 30 days

Aug 23174
Aug 2424
Aug 2588
Aug 26134
Aug 2772
Aug 2830
Aug 3129
Sep 1107
Sep 2167
Sep 383
Sep 462
Sep 5126
Sep 6161
Sep 762
Sep 856
Sep 9155
Sep 1089
Sep 1139
Sep 12163
Sep 13150
Sep 1420
Sep 1592
Sep 16134
Sep 17108
Sep 1846
Sep 1989

Recent MLB examples

Best detection per game-market, most recent first, net of fees at the reference stake. These windows have closed.

GameMarketBooksNet edgeProfit at stakeDetected
Boston Red Sox @ Tampa Bay Raysspread 1.5Bovada + Fanatics Sportsbook0.75%$18.72 / $2,500Sep 19, 1:10 AM ET
San Francisco Giants @ Los Angeles Dodgersspread 5.5Fanatics Sportsbook + Caesars10.53%$263.16 / $2,500Sep 19, 12:54 AM ET
San Francisco Giants @ Los Angeles Dodgersspread 2.5FanDuel + Hard Rock Bet2.01%$50.26 / $2,500Sep 19, 12:39 AM ET
San Francisco Giants @ Los Angeles Dodgerstotal 7.5Courtside + Fanatics Sportsbook3.45%$86.17 / $2,500Sep 19, 12:39 AM ET
New York Yankees @ Arizona Diamondbacksspread 6.5Courtside + ReBet12.35%$308.76 / $2,500Sep 19, 12:39 AM ET
Miami Marlins @ San Diego Padresspread 5.5BetMGM + Hard Rock Bet9.09%$227.20 / $2,500Sep 19, 12:24 AM ET
New York Yankees @ Arizona Diamondbackstotal 11.5DraftKings + Caesars13.63%$340.82 / $2,500Sep 19, 12:24 AM ET
Miami Marlins @ San Diego Padrestotal 8.5betPARX + ReBet2.22%$55.56 / $2,500Sep 19, 12:08 AM ET
Minnesota Twins @ Los Angeles Angelstotal 3.5Bally Bet + betPARX9.89%$247.38 / $2,500Sep 19, 12:08 AM ET
Minnesota Twins @ Los Angeles Angelsspread 2.5Bally Bet + betPARX9.89%$247.38 / $2,500Sep 19, 12:08 AM ET
San Francisco Giants @ Los Angeles DodgersmoneylinebetPARX + ESPN BET2.65%$66.28 / $2,500Sep 18, 11:38 PM ET
San Francisco Giants @ Los Angeles Dodgersspread 1.5BetMGM + betPARX4.39%$109.68 / $2,500Sep 18, 11:38 PM ET
Minnesota Twins @ Los Angeles Angelstotal 6.5DraftKings + Fanatics Sportsbook3.37%$84.34 / $2,500Sep 18, 11:38 PM ET
Miami Marlins @ San Diego PadresmoneylineBally Bet + Fanatics Sportsbook11.09%$277.22 / $2,500Sep 18, 11:07 PM ET
Miami Marlins @ San Diego Padresspread 1.5Bally Bet + ESPN BET12.92%$323.01 / $2,500Sep 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%).

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MLB arbitrage: 333 games with a cross-book edge in 30 days (measured) · ArbMonster