betPARX vs ESPN BET: where their odds disagree
Over the last 30 days, betPARX and ESPN BET quoted the same line at prices that summed to less than 100% on 61 game-markets — a cross-book arbitrage — with an average net edge of 3.45% and a peak of 14.89%. On plain vig, ESPN BET is the cheaper book of the two. Last disagreement: Sep 19, 2026.
Vig: betPARX vs ESPN BET
| betPARX | ESPN BET | |
|---|---|---|
| Overall overround | 5.24% | 4.55% |
| Moneyline | 4.76% | 4.12% |
| Spreads | 5.08% | 4.87% |
| Totals | 5.66% | 4.66% |
| NFL | 4.89% | 4.54% |
| MLB | 5.31% | 4.45% |
| NBA | 4.84% | 4.51% |
| NHL | 5.13% | 4.69% |
| MLS | 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 |
|---|---|---|---|---|
| San Francisco Giants @ Los Angeles Dodgers · MLB | moneyline | Los Angeles Dodgers @ betPARX + San Francisco Giants @ ESPN BET | 2.65% | Sep 18, 11:38 PM ET |
| New York Yankees @ Arizona Diamondbacks · MLB | total 13.5 | Over @ ESPN BET + Under @ betPARX | 0.49% | Sep 18, 10:37 PM ET |
| Toronto Blue Jays @ Texas Rangers · MLB | total 10.5 | Over @ betPARX + Under @ ESPN BET | 2.44% | Sep 18, 10:22 PM ET |
| Toronto Blue Jays @ Texas Rangers · MLB | total 8.5 | Over @ betPARX + Under @ ESPN BET | 1.96% | Sep 18, 9:20 PM ET |
| Toronto Blue Jays @ Texas Rangers · MLB | total 9.5 | Over @ betPARX + Under @ ESPN BET | 3.38% | Sep 18, 9:05 PM ET |
| Philadelphia Phillies @ New York Mets · MLB | total 8.5 | Over @ betPARX + Under @ ESPN BET | 0.50% | Sep 18, 9:05 PM ET |
| Seattle Mariners @ Colorado Rockies · MLB | spread 4.5 | Colorado Rockies @ betPARX + Seattle Mariners @ ESPN BET | 0.57% | Sep 18, 8:34 PM ET |
| Kansas City Royals @ Houston Astros · MLB | total 8.5 | Over @ betPARX + Under @ ESPN BET | 2.91% | Sep 17, 8:48 PM ET |
| Los Angeles Dodgers @ Cincinnati Reds · MLB | total 11.5 | Over @ betPARX + Under @ ESPN BET | 1.65% | Sep 17, 2:27 PM ET |
| San Diego Padres @ Colorado Rockies · MLB | total 14.5 | Over @ betPARX + Under @ ESPN BET | 3.89% | Sep 16, 10:45 PM ET |
| Atlanta Braves @ Chicago Cubs · MLB | total 8.5 | Over @ betPARX + Under @ ESPN BET | 1.11% | Sep 16, 9:30 PM ET |
| Atlanta Braves @ Chicago Cubs · MLB | total 6.5 | Over @ betPARX + Under @ ESPN BET | 0.41% | Sep 16, 8:29 PM ET |
| San Francisco Giants @ St. Louis Cardinals · MLB | total 4.5 | Over @ betPARX + Under @ ESPN BET | 1.70% | Sep 16, 2:38 PM ET |
| Milwaukee Brewers @ Pittsburgh Pirates · MLB | spread 1.5 | Milwaukee Brewers @ betPARX + Pittsburgh Pirates @ ESPN BET | 2.96% | Sep 15, 8:01 PM ET |
| Atlanta Braves @ Chicago Cubs · MLB | spread 5.5 | Atlanta Braves @ ESPN BET + Chicago Cubs @ betPARX | 2.50% | Sep 14, 8:46 PM ET |
Frequently asked questions
How often do betPARX and ESPN BET disagree?
In the last 30 days our scanner recorded 61 game-markets where betPARX and ESPN BET quoted the same line at prices whose implied probabilities summed to less than 100% — a cross-book arbitrage — across 61 scans. The average net edge was 3.45% and the largest 14.89%.
Which has lower vig, betPARX or ESPN BET?
ESPN BET — betPARX measures 5.24% overall and ESPN BET measures 4.55% 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 ESPN BET disagree on most?
MLB (60 game-markets, avg 3.47%); NFL (1 game-markets, avg 2.44%).
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