Bally Bet vs betPARX: where their odds disagree
Over the last 30 days, Bally Bet and betPARX quoted the same line at prices that summed to less than 100% on 15 game-markets — a cross-book arbitrage — with an average net edge of 5.41% and a peak of 14.78%. On plain vig, betPARX is the cheaper book of the two. Last disagreement: Sep 19, 2026.
Vig: Bally Bet vs betPARX
| Bally Bet | betPARX | |
|---|---|---|
| Overall overround | 5.29% | 5.24% |
| Moneyline | 4.81% | 4.76% |
| Spreads | 5.14% | 5.08% |
| Totals | 5.70% | 5.66% |
| NFL | 4.89% | 4.89% |
| MLB | 5.51% | 5.31% |
| NBA | 4.84% | 4.84% |
| NHL | 5.13% | 5.13% |
| MLS | 6.48% | 6.46% |
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 |
|---|---|---|---|---|
| Minnesota Twins @ Los Angeles Angels · MLB | total 3.5 | Over @ betPARX + Under @ Bally Bet | 9.89% | Sep 19, 12:08 AM ET |
| Minnesota Twins @ Los Angeles Angels · MLB | spread 2.5 | Los Angeles Angels @ betPARX + Minnesota Twins @ Bally Bet | 9.89% | Sep 19, 12:08 AM ET |
| San Francisco Giants @ St. Louis Cardinals · MLB | total 10.5 | Over @ Bally Bet + Under @ betPARX | 2.82% | Sep 16, 4:25 PM ET |
| Los Angeles Dodgers @ Miami Marlins · MLB | total 7.5 | Over @ Bally Bet + Under @ betPARX | 1.18% | Sep 13, 3:02 PM ET |
| Texas Rangers @ Arizona Diamondbacks · MLB | spread 3.5 | Arizona Diamondbacks @ betPARX + Texas Rangers @ Bally Bet | 0.66% | Sep 12, 11:16 PM ET |
| San Jose Earthquakes @ San Diego FC · MLS | total 4.5 | Over @ Bally Bet + Under @ betPARX | 14.78% | Sep 9, 10:51 PM ET |
| Houston Astros @ Philadelphia Phillies · MLB | spread 1.5 | Houston Astros @ Bally Bet + Philadelphia Phillies @ betPARX | 7.50% | Sep 9, 7:34 PM ET |
| Minnesota United FC @ Portland Timbers · MLS | total 3.5 | Over @ Bally Bet + Under @ betPARX | 8.77% | Sep 5, 10:50 PM ET |
| San Francisco Giants @ New York Mets · MLB | moneyline | New York Mets @ betPARX + San Francisco Giants @ Bally Bet | 2.47% | Sep 4, 7:13 PM ET |
| Philadelphia Phillies @ Arizona Diamondbacks · MLB | spread 1.0 | Arizona Diamondbacks @ Bally Bet + Philadelphia Phillies @ betPARX | 3.13% | Sep 2, 5:33 PM ET |
| Colorado Rockies @ Washington Nationals · MLB | total 14.5 | Over @ Bally Bet + Under @ betPARX | 2.48% | Aug 26, 9:24 PM ET |
| Cincinnati Reds @ San Francisco Giants · MLB | spread 3.0 | Cincinnati Reds @ Bally Bet + San Francisco Giants @ betPARX | 3.96% | Aug 25, 11:43 PM ET |
| Boston Red Sox @ Miami Marlins · MLB | moneyline | Boston Red Sox @ Bally Bet + Miami Marlins @ betPARX | 3.89% | Aug 25, 9:26 PM ET |
| Washington Nationals @ Miami Marlins · MLB | spread 3.0 | Miami Marlins @ Bally Bet + Washington Nationals @ betPARX | 8.67% | Aug 23, 4:11 PM ET |
| Toronto Blue Jays @ New York Yankees · MLB | total 9.0 | Over @ Bally Bet + Under @ betPARX | 1.00% | Aug 23, 3:56 PM ET |
Frequently asked questions
How often do Bally Bet and betPARX disagree?
In the last 30 days our scanner recorded 15 game-markets where Bally Bet and betPARX quoted the same line at prices whose implied probabilities summed to less than 100% — a cross-book arbitrage — across 15 scans. The average net edge was 5.41% and the largest 14.78%.
Which has lower vig, Bally Bet or betPARX?
betPARX — Bally Bet measures 5.29% overall and betPARX measures 5.24% 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 Bally Bet and betPARX disagree on most?
MLB (13 game-markets, avg 4.43%); MLS (2 game-markets, avg 11.78%).
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