BetRivers vig, measured: 5.44%
BetRivers ranks #17 of 21 US sportsbooks by overround over the last 30 days (lower is cheaper). Its margin is above the field average of 5.08%. In that window it was one side of a cross-book arbitrage on 160 game-markets.
BetRivers vig by sport
| Sport | Overround | Rank in sport | Field average | Lines |
|---|---|---|---|---|
| NFL | 5.00% | #17 of 21 | 4.76% | 154,988 |
| MLB | 5.36% | #17 of 20 | 4.50% | 100,719 |
| NHL | 5.52% | #15 of 16 | 4.78% | 54,663 |
| NBA | 5.57% | #14 of 15 | 4.73% | 62,520 |
| MLS | 6.44% | #5 of 11 | 6.64% | 62,582 |
Daily margin, last 30 days
Overround per day by market type. Books adjust their margin around big slates and sharp action; the trend is more telling than any single day.
| Date | Moneyline | Spreads | Totals |
|---|---|---|---|
| Sep 19, 2026 | 4.95% | 5.41% | 5.78% |
| Sep 18, 2026 | 4.80% | 5.23% | 5.70% |
| Sep 17, 2026 | 4.85% | 5.29% | 5.67% |
| Sep 16, 2026 | 4.88% | 5.33% | 5.95% |
| Sep 15, 2026 | 4.92% | 5.36% | 5.95% |
| Sep 14, 2026 | 4.88% | 5.30% | 5.89% |
| Sep 13, 2026 | 4.97% | 5.36% | 5.86% |
| Sep 12, 2026 | 4.92% | 5.29% | 5.80% |
| Sep 11, 2026 | 4.78% | 5.18% | 5.58% |
| Sep 10, 2026 | 4.96% | 5.27% | 5.63% |
| Sep 9, 2026 | 5.02% | 5.37% | 5.78% |
| Sep 8, 2026 | 4.96% | 5.29% | 5.75% |
| Sep 7, 2026 | 5.06% | 5.40% | 5.88% |
| Sep 6, 2026 | 5.09% | 5.43% | 5.91% |
Which books disagree with BetRivers
An arbitrage needs two books on the same line at prices summing under 100%. These are the books that produced one with BetRivers most often over 30 days.
| Counterparty | Game-markets | Avg net edge | Max net edge | Last seen | |
|---|---|---|---|---|---|
| Caesars | 20 | 2.08% | 11.21% | Sep 19, 2026 | pair page → |
| BetMGM | 15 | 2.96% | 13.74% | Sep 19, 2026 | pair page → |
| MyBookie | 15 | 4.26% | 13.98% | Sep 17, 2026 | pair page → |
| Hard Rock Bet | 15 | 2.27% | 9.30% | Sep 13, 2026 | pair page → |
| FanDuel | 14 | 1.40% | 11.55% | Sep 18, 2026 | pair page → |
| LowVig | 14 | 0.95% | 5.97% | Sep 18, 2026 | pair page → |
| Fliff | 12 | 1.36% | 4.22% | Sep 19, 2026 | pair page → |
| DraftKings | 12 | 3.16% | 12.95% | Sep 19, 2026 | pair page → |
| ESPN BET | 11 | 2.51% | 9.30% | Sep 17, 2026 | pair page → |
| Bovada | 11 | 5.04% | 14.53% | Sep 17, 2026 | pair page → |
| ReBet | 10 | 4.06% | 12.09% | Sep 19, 2026 | pair page → |
| BetOnline | 7 | 0.51% | 1.03% | Sep 15, 2026 | pair page → |
Recent BetRivers arbitrage examples
Measured at detection, net of fees, at the reference stake shown. These windows have closed; they are a record of what the market did, not a recommendation.
| Game | Market | Net edge | Profit at stake | Detected |
|---|---|---|---|---|
| Athletics @ Cleveland Guardians · MLB | spread 2.5 | 6.40% | $159.96 / $2,500 | Sep 18, 9:20 PM ET |
| Kansas City Royals @ Pittsburgh Pirates · MLB | spread 2.5 | 6.81% | $170.30 / $2,500 | Sep 18, 9:05 PM ET |
| Kansas City Royals @ Pittsburgh Pirates · MLB | total 13.5 | 7.33% | $183.20 / $2,500 | Sep 18, 9:05 PM ET |
| Detroit Tigers @ Chicago White Sox · MLB | spread 4.5 | 2.96% | $74.03 / $2,500 | Sep 18, 8:34 PM ET |
| Philadelphia Phillies @ New York Mets · MLB | moneyline | 0.75% | $18.68 / $2,500 | Sep 18, 8:34 PM ET |
| Detroit Tigers @ Chicago White Sox · MLB | total 14.5 | 1.23% | $30.86 / $2,500 | Sep 18, 8:19 PM ET |
| Boston Red Sox @ Tampa Bay Rays · MLB | total 9.5 | 0.70% | $17.49 / $2,500 | Sep 18, 8:19 PM ET |
| Toronto Blue Jays @ Texas Rangers · MLB | moneyline | 0.39% | $9.83 / $2,500 | Sep 18, 5:27 AM ET |
| Boston Red Sox @ Texas Rangers · MLB | total 5.5 | 3.38% | $84.54 / $2,500 | Sep 17, 10:04 PM ET |
| Los Angeles Dodgers @ Cincinnati Reds · MLB | spread 6.5 | 8.05% | $201.15 / $2,500 | Sep 17, 2:57 PM ET |
| Milwaukee Brewers @ Pittsburgh Pirates · MLB | moneyline | 4.58% | $114.38 / $2,500 | Sep 17, 1:26 PM ET |
| Los Angeles Dodgers @ Cincinnati Reds · MLB | moneyline | 1.19% | $29.76 / $2,500 | Sep 17, 1:48 AM ET |
Frequently asked questions
What is BetRivers's vig?
Over the last 30 days BetRivers's measured overround is 5.44% across all lines we recorded — 4.98% on moneylines, 5.33% on spreads and 5.81% on totals. That ranks #17 of 21 US books we scan (lower is cheaper).
Is BetRivers a low-vig sportsbook?
Not by our measurements: its 5.44% overall margin is above the field average of 5.08%.
Which books disagree with BetRivers most often?
Caesars — 20 game-markets in 30 days where the two books quoted the same line at prices that summed to less than 100%, averaging a 2.08% net edge. Next: BetMGM (15).
How is this measured?
For every line BetRivers posted that our scanner ingested, both sides' odds are converted to implied probabilities and summed; the excess over 100% is the overround. Figures are weighted by lines observed and averaged over 30 days. Nothing here is estimated — every number traces to recorded lines.
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