BetRivers vs FanDuel: where their odds disagree
Over the last 30 days, BetRivers and FanDuel quoted the same line at prices that summed to less than 100% on 14 game-markets — a cross-book arbitrage — with an average net edge of 1.40% and a peak of 11.55%. On plain vig, FanDuel is the cheaper book of the two. Last disagreement: Sep 18, 2026.
Vig: BetRivers vs FanDuel
| BetRivers | FanDuel | |
|---|---|---|
| Overall overround | 5.44% | 4.58% |
| Moneyline | 4.98% | 4.00% |
| Spreads | 5.33% | 4.84% |
| Totals | 5.81% | 4.90% |
| NFL | 5.00% | 4.57% |
| MLB | 5.36% | 4.56% |
| NBA | 5.57% | 4.50% |
| NHL | 5.52% | 4.85% |
| MLS | 6.44% | — |
Disagreements by sport
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 |
|---|---|---|---|---|
| Boston Red Sox @ Texas Rangers · MLB | total 5.5 | Over @ BetRivers + Under @ FanDuel | 3.38% | Sep 17, 10:04 PM ET |
| Boston Red Sox @ Texas Rangers · MLB | moneyline | Boston Red Sox @ BetRivers + Texas Rangers @ FanDuel | 7.75% | Sep 16, 10:15 PM ET |
| Boston Red Sox @ Texas Rangers · MLB | moneyline | Boston Red Sox @ FanDuel + Texas Rangers @ BetRivers | 0.84% | Sep 15, 12:49 PM ET |
| Seattle Mariners @ Los Angeles Angels · MLB | spread 1.5 | Los Angeles Angels @ FanDuel + Seattle Mariners @ BetRivers | 11.25% | Sep 15, 12:04 AM ET |
| Arizona Cardinals @ Los Angeles Chargers · NFL | spread 11.5 | Arizona Cardinals @ FanDuel + Los Angeles Chargers @ BetRivers | 1.68% | Sep 13, 7:20 PM ET |
| Green Bay Packers @ Minnesota Vikings · NFL | spread 6.5 | Green Bay Packers @ FanDuel + Minnesota Vikings @ BetRivers | 6.39% | Sep 13, 7:20 PM ET |
| Las Vegas Raiders @ Los Angeles Chargers · NFL | moneyline | Las Vegas Raiders @ FanDuel + Los Angeles Chargers @ BetRivers | 1.42% | Sep 9, 5:32 PM ET |
| St. Louis Cardinals @ San Francisco Giants · MLB | total 7.5 | Over @ BetRivers + Under @ FanDuel | 11.55% | Sep 9, 2:28 AM ET |
| Colorado Rockies @ New York Yankees · MLB | spread 3.5 | Colorado Rockies @ FanDuel + New York Yankees @ BetRivers | 6.25% | Sep 8, 9:38 PM ET |
| Washington Nationals @ Los Angeles Dodgers · MLB | moneyline | Los Angeles Dodgers @ FanDuel + Washington Nationals @ BetRivers | 2.91% | Sep 5, 10:19 PM ET |
| Minnesota Twins @ Chicago White Sox · MLB | moneyline | Chicago White Sox @ BetRivers + Minnesota Twins @ FanDuel | 1.99% | Sep 4, 10:32 PM ET |
| Los Angeles Angels @ Pittsburgh Pirates · MLB | moneyline | Los Angeles Angels @ FanDuel + Pittsburgh Pirates @ BetRivers | 2.50% | Sep 4, 9:46 PM ET |
| Atlanta Braves @ Philadelphia Phillies · MLB | total 8.5 | Over @ FanDuel + Under @ BetRivers | 0.65% | Sep 4, 8:30 PM ET |
| Pittsburgh Pirates @ Los Angeles Dodgers · MLB | moneyline | Los Angeles Dodgers @ BetRivers + Pittsburgh Pirates @ FanDuel | 1.60% | Aug 22, 9:51 PM ET |
Frequently asked questions
How often do BetRivers and FanDuel disagree?
In the last 30 days our scanner recorded 14 game-markets where BetRivers and FanDuel quoted the same line at prices whose implied probabilities summed to less than 100% — a cross-book arbitrage — across 81 scans. The average net edge was 1.40% and the largest 11.55%.
Which has lower vig, BetRivers or FanDuel?
FanDuel — BetRivers measures 5.44% overall and FanDuel measures 4.58% 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 BetRivers and FanDuel disagree on most?
MLB (11 game-markets, avg 4.50%); NFL (3 game-markets, avg 0.86%).
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