betPARX vs MyBookie: where their odds disagree
Over the last 30 days, betPARX and MyBookie quoted the same line at prices that summed to less than 100% on 163 game-markets — a cross-book arbitrage — with an average net edge of 4.61% and a peak of 14.62%. On plain vig, betPARX is the cheaper book of the two. Last disagreement: Sep 17, 2026.
Vig: betPARX vs MyBookie
| betPARX | MyBookie | |
|---|---|---|
| Overall overround | 5.24% | 5.96% |
| Moneyline | 4.76% | 5.14% |
| Spreads | 5.08% | 6.07% |
| Totals | 5.66% | 6.31% |
| NFL | 4.89% | 5.12% |
| MLB | 5.31% | 4.66% |
| NBA | 4.84% | — |
| NHL | 5.13% | — |
| MLS | 6.46% | 7.92% |
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 |
|---|---|---|---|---|
| Milwaukee Brewers @ Pittsburgh Pirates · MLB | spread 1.5 | Milwaukee Brewers @ betPARX + Pittsburgh Pirates @ MyBookie | 1.40% | Sep 17, 12:41 PM ET |
| Minnesota Twins @ Los Angeles Angels · MLB | spread 1.5 | Los Angeles Angels @ betPARX + Minnesota Twins @ MyBookie | 3.25% | Sep 17, 5:20 AM ET |
| Miami Marlins @ Arizona Diamondbacks · MLB | moneyline | Arizona Diamondbacks @ MyBookie + Miami Marlins @ betPARX | 1.52% | Sep 16, 11:46 PM ET |
| Miami Marlins @ Arizona Diamondbacks · MLB | spread 1.5 | Arizona Diamondbacks @ betPARX + Miami Marlins @ MyBookie | 2.53% | Sep 16, 11:31 PM ET |
| Seattle Mariners @ Los Angeles Angels · MLB | moneyline | Los Angeles Angels @ MyBookie + Seattle Mariners @ betPARX | 0.66% | Sep 16, 10:00 PM ET |
| Kansas City Royals @ Houston Astros · MLB | moneyline | Houston Astros @ MyBookie + Kansas City Royals @ betPARX | 1.71% | Sep 16, 9:45 PM ET |
| Kansas City Royals @ Houston Astros · MLB | spread 1.5 | Houston Astros @ MyBookie + Kansas City Royals @ betPARX | 2.24% | Sep 16, 9:45 PM ET |
| Atlanta Braves @ Chicago Cubs · MLB | total 6.5 | Over @ betPARX + Under @ MyBookie | 0.41% | Sep 16, 8:59 PM ET |
| Atlanta Braves @ Chicago Cubs · MLB | spread 1.5 | Atlanta Braves @ betPARX + Chicago Cubs @ MyBookie | 7.81% | Sep 16, 7:59 PM ET |
| Atlanta Braves @ Chicago Cubs · MLB | moneyline | Atlanta Braves @ betPARX + Chicago Cubs @ MyBookie | 8.80% | Sep 16, 7:59 PM ET |
| Milwaukee Brewers @ Pittsburgh Pirates · MLB | moneyline | Milwaukee Brewers @ MyBookie + Pittsburgh Pirates @ betPARX | 3.85% | Sep 16, 6:58 PM ET |
| Detroit Tigers @ Toronto Blue Jays · MLB | moneyline | Detroit Tigers @ betPARX + Toronto Blue Jays @ MyBookie | 8.94% | Sep 16, 4:25 PM ET |
| New York Yankees @ Minnesota Twins · MLB | total 3.5 | Over @ betPARX + Under @ MyBookie | 0.49% | Sep 16, 3:39 PM ET |
| Chicago White Sox @ Cleveland Guardians · MLB | moneyline | Chicago White Sox @ MyBookie + Cleveland Guardians @ betPARX | 1.05% | Sep 16, 2:08 PM ET |
| Seattle Mariners @ Los Angeles Angels · MLB | total 3.5 | Over @ betPARX + Under @ MyBookie | 3.13% | Sep 16, 12:06 AM ET |
Frequently asked questions
How often do betPARX and MyBookie disagree?
In the last 30 days our scanner recorded 163 game-markets where betPARX and MyBookie quoted the same line at prices whose implied probabilities summed to less than 100% — a cross-book arbitrage — across 194 scans. The average net edge was 4.61% and the largest 14.62%.
Which has lower vig, betPARX or MyBookie?
betPARX — betPARX measures 5.24% overall and MyBookie measures 5.96% 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 betPARX and MyBookie disagree on most?
MLB (136 game-markets, avg 4.31%); MLS (21 game-markets, avg 6.18%); NFL (6 game-markets, avg 6.55%).
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