BetUS vs Caesars: where their odds disagree
Over the last 30 days, BetUS and Caesars quoted the same line at prices that summed to less than 100% on 8 game-markets — a cross-book arbitrage — with an average net edge of 2.39% and a peak of 10.12%. On plain vig, BetUS is the cheaper book of the two. Last disagreement: Sep 13, 2026.
Vig: BetUS vs Caesars
| BetUS | Caesars | |
|---|---|---|
| Overall overround | 4.64% | 5.78% |
| Moneyline | 3.31% | 5.12% |
| Spreads | 4.71% | 6.09% |
| Totals | 4.84% | 6.16% |
| NFL | 4.65% | 6.12% |
| MLB | 3.66% | 4.13% |
| NHL | 4.20% | 4.67% |
| MLS | 6.52% | — |
| NBA | — | 4.58% |
Disagreements by sport
| Sport | Game-markets | Avg net edge | Max net edge |
|---|---|---|---|
| MLB | 8 | 2.39% | 10.12% |
How big the edges were
Share of detections by net edge bucket. Most cross-book edges are small; the tail is where the money and the execution risk both live.
Recent examples
Best detection per game-market, most recent first. These windows have closed.
| Game | Market | Legs | Net edge | Detected |
|---|---|---|---|---|
| Pittsburgh Pirates @ Chicago Cubs · MLB | moneyline | Chicago Cubs @ Caesars + Pittsburgh Pirates @ BetUS | 10.12% | Sep 13, 2:32 PM ET |
| Cincinnati Reds @ Los Angeles Dodgers · MLB | moneyline | Cincinnati Reds @ Caesars + Los Angeles Dodgers @ BetUS | 2.73% | Sep 9, 10:21 PM ET |
| Washington Nationals @ Los Angeles Dodgers · MLB | moneyline | Los Angeles Dodgers @ BetUS + Washington Nationals @ Caesars | 1.61% | Sep 6, 10:14 PM ET |
| Atlanta Braves @ Washington Nationals · MLB | spread 1.5 | Atlanta Braves @ Caesars + Washington Nationals @ BetUS | 1.54% | Sep 2, 1:13 PM ET |
| San Diego Padres @ Cincinnati Reds · MLB | moneyline | Cincinnati Reds @ Caesars + San Diego Padres @ BetUS | 0.51% | Sep 2, 9:23 AM ET |
| Philadelphia Phillies @ Arizona Diamondbacks · MLB | moneyline | Arizona Diamondbacks @ BetUS + Philadelphia Phillies @ Caesars | 0.23% | Aug 31, 8:08 PM ET |
| Baltimore Orioles @ Colorado Rockies · MLB | moneyline | Baltimore Orioles @ Caesars + Colorado Rockies @ BetUS | 2.09% | Aug 31, 3:30 PM ET |
| Cincinnati Reds @ San Francisco Giants · MLB | moneyline | Cincinnati Reds @ Caesars + San Francisco Giants @ BetUS | 0.25% | Aug 26, 1:15 PM ET |
Frequently asked questions
How often do BetUS and Caesars disagree?
In the last 30 days our scanner recorded 8 game-markets where BetUS and Caesars quoted the same line at prices whose implied probabilities summed to less than 100% — a cross-book arbitrage — across 8 scans. The average net edge was 2.39% and the largest 10.12%.
Which has lower vig, BetUS or Caesars?
BetUS — BetUS measures 4.64% overall and Caesars measures 5.78% over 30 days of live lines. The per-market and per-sport breakdown is in the table above.
Does this mean I can make money betting both?
Not automatically. These are measurements of past disagreements at the moment they were detected. Lines move within minutes, displayed prices may not be available at your stake, both books must be accessible in your state, and neither book has to honor a stale price. ArbMonster shows the math; the execution and the risk are yours.
Which sports do BetUS and Caesars disagree on most?
MLB (8 game-markets, avg 2.39%).
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