BetRivers vs DraftKings: where their odds disagree
Over the last 30 days, BetRivers and DraftKings quoted the same line at prices that summed to less than 100% on 12 game-markets — a cross-book arbitrage — with an average net edge of 3.16% and a peak of 12.95%. On plain vig, DraftKings is the cheaper book of the two. Last disagreement: Sep 19, 2026.
Vig: BetRivers vs DraftKings
| BetRivers | DraftKings | |
|---|---|---|
| Overall overround | 5.44% | 4.54% |
| Moneyline | 4.98% | 4.28% |
| Spreads | 5.33% | 4.66% |
| Totals | 5.81% | 4.69% |
| NFL | 5.00% | 4.57% |
| MLB | 5.36% | 4.65% |
| NBA | 5.57% | 4.58% |
| NHL | 5.52% | 4.33% |
| 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 |
|---|---|---|---|---|
| Athletics @ Cleveland Guardians · MLB | spread 2.5 | Athletics @ DraftKings + Cleveland Guardians @ BetRivers | 6.40% | Sep 18, 9:20 PM ET |
| Kansas City Royals @ Pittsburgh Pirates · MLB | spread 2.5 | Kansas City Royals @ BetRivers + Pittsburgh Pirates @ DraftKings | 6.81% | Sep 18, 9:05 PM ET |
| Boston Red Sox @ Texas Rangers · MLB | moneyline | Boston Red Sox @ BetRivers + Texas Rangers @ DraftKings | 2.74% | Sep 15, 9:33 PM ET |
| Baltimore Orioles @ New York Mets · MLB | spread 1.5 | Baltimore Orioles @ DraftKings + New York Mets @ BetRivers | 3.00% | Sep 15, 8:32 PM ET |
| Cleveland Browns @ Jacksonville Jaguars · NFL | spread 24.5 | Cleveland Browns @ BetRivers + Jacksonville Jaguars @ DraftKings | 12.95% | Sep 13, 3:47 PM ET |
| Seattle Mariners @ Athletics · MLB | total 13.5 | Over @ DraftKings + Under @ BetRivers | 0.65% | Sep 12, 10:45 PM ET |
| Los Angeles Dodgers @ Atlanta Braves · MLB | moneyline | Atlanta Braves @ BetRivers + Los Angeles Dodgers @ DraftKings | 0.23% | Aug 27, 3:36 PM ET |
| Houston Astros @ New York Yankees · MLB | moneyline | Houston Astros @ DraftKings + New York Yankees @ BetRivers | 0.21% | Aug 25, 4:17 PM ET |
| Cincinnati Reds @ Arizona Diamondbacks · MLB | moneyline | Arizona Diamondbacks @ BetRivers + Cincinnati Reds @ DraftKings | 0.21% | Aug 23, 2:40 PM ET |
| San Francisco Giants @ Boston Red Sox · MLB | moneyline | Boston Red Sox @ BetRivers + San Francisco Giants @ DraftKings | 7.82% | Aug 23, 7:32 AM ET |
| Tampa Bay Rays @ Baltimore Orioles · MLB | moneyline | Baltimore Orioles @ DraftKings + Tampa Bay Rays @ BetRivers | 1.24% | Aug 23, 5:44 AM ET |
| New York Mets @ Chicago White Sox · MLB | moneyline | Chicago White Sox @ BetRivers + New York Mets @ DraftKings | 1.52% | Aug 22, 9:05 PM ET |
Frequently asked questions
How often do BetRivers and DraftKings disagree?
In the last 30 days our scanner recorded 12 game-markets where BetRivers and DraftKings quoted the same line at prices whose implied probabilities summed to less than 100% — a cross-book arbitrage — across 14 scans. The average net edge was 3.16% and the largest 12.95%.
Which has lower vig, BetRivers or DraftKings?
DraftKings — BetRivers measures 5.44% overall and DraftKings measures 4.54% 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 DraftKings disagree on most?
MLB (11 game-markets, avg 2.41%); NFL (1 game-markets, avg 12.95%).
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