BetUS vs Fanatics Sportsbook: where their odds disagree
Over the last 30 days, BetUS and Fanatics Sportsbook quoted the same line at prices that summed to less than 100% on 7 game-markets — a cross-book arbitrage — with an average net edge of 5.33% and a peak of 13.54%. On plain vig, BetUS is the cheaper book of the two. Last disagreement: Sep 15, 2026.
Vig: BetUS vs Fanatics Sportsbook
| BetUS | Fanatics Sportsbook | |
|---|---|---|
| Overall overround | 4.64% | 4.75% |
| Moneyline | 3.31% | 4.54% |
| Spreads | 4.71% | 4.91% |
| Totals | 4.84% | 4.80% |
| NFL | 4.65% | 4.65% |
| MLB | 3.66% | 4.87% |
| NHL | 4.20% | 4.73% |
| MLS | 6.52% | — |
| NBA | — | 4.64% |
Disagreements by sport
| Sport | Game-markets | Avg net edge | Max net edge |
|---|---|---|---|
| MLB | 7 | 5.33% | 13.54% |
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 |
|---|---|---|---|---|
| San Francisco Giants @ St. Louis Cardinals · MLB | moneyline | San Francisco Giants @ Fanatics Sportsbook + St. Louis Cardinals @ BetUS | 0.83% | Sep 14, 8:00 PM ET |
| St. Louis Cardinals @ San Francisco Giants · MLB | moneyline | San Francisco Giants @ BetUS + St. Louis Cardinals @ Fanatics Sportsbook | 13.24% | Sep 9, 4:00 PM ET |
| St. Louis Cardinals @ San Francisco Giants · MLB | moneyline | San Francisco Giants @ BetUS + St. Louis Cardinals @ Fanatics Sportsbook | 3.08% | Sep 8, 9:53 PM ET |
| Tampa Bay Rays @ Atlanta Braves · MLB | moneyline | Atlanta Braves @ BetUS + Tampa Bay Rays @ Fanatics Sportsbook | 2.52% | Sep 8, 7:20 PM ET |
| San Francisco Giants @ New York Mets · MLB | moneyline | New York Mets @ BetUS + San Francisco Giants @ Fanatics Sportsbook | 1.82% | Sep 6, 1:53 PM ET |
| Miami Marlins @ Kansas City Royals · MLB | moneyline | Kansas City Royals @ Fanatics Sportsbook + Miami Marlins @ BetUS | 13.54% | Sep 3, 7:41 PM ET |
| Toronto Blue Jays @ Cleveland Guardians · MLB | moneyline | Cleveland Guardians @ BetUS + Toronto Blue Jays @ Fanatics Sportsbook | 2.26% | Sep 3, 1:20 PM ET |
Frequently asked questions
How often do BetUS and Fanatics Sportsbook disagree?
In the last 30 days our scanner recorded 7 game-markets where BetUS and Fanatics Sportsbook quoted the same line at prices whose implied probabilities summed to less than 100% — a cross-book arbitrage — across 7 scans. The average net edge was 5.33% and the largest 13.54%.
Which has lower vig, BetUS or Fanatics Sportsbook?
BetUS — BetUS measures 4.64% overall and Fanatics Sportsbook measures 4.75% 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 Fanatics Sportsbook disagree on most?
MLB (7 game-markets, avg 5.33%).
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