betPARX vs DraftKings: where their odds disagree
Over the last 30 days, betPARX and DraftKings quoted the same line at prices that summed to less than 100% on 56 game-markets — a cross-book arbitrage — with an average net edge of 3.16% and a peak of 14.54%. On plain vig, DraftKings is the cheaper book of the two. Last disagreement: Sep 19, 2026.
Vig: betPARX vs DraftKings
| betPARX | DraftKings | |
|---|---|---|
| Overall overround | 5.24% | 4.54% |
| Moneyline | 4.76% | 4.28% |
| Spreads | 5.08% | 4.66% |
| Totals | 5.66% | 4.69% |
| NFL | 4.89% | 4.57% |
| MLB | 5.31% | 4.65% |
| NBA | 4.84% | 4.58% |
| NHL | 5.13% | 4.33% |
| 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 |
|---|---|---|---|---|
| Boston Red Sox @ Tampa Bay Rays · MLB | total 8.5 | Over @ betPARX + Under @ DraftKings | 0.99% | Sep 18, 8:34 PM ET |
| Kansas City Royals @ Pittsburgh Pirates · MLB | spread 1.5 | Kansas City Royals @ betPARX + Pittsburgh Pirates @ DraftKings | 1.23% | Sep 18, 8:04 PM ET |
| San Diego Padres @ Colorado Rockies · MLB | spread 8.5 | Colorado Rockies @ DraftKings + San Diego Padres @ betPARX | 0.46% | Sep 17, 4:44 PM ET |
| Seattle Mariners @ Los Angeles Angels · MLB | moneyline | Los Angeles Angels @ DraftKings + Seattle Mariners @ betPARX | 0.57% | Sep 16, 10:30 PM ET |
| Philadelphia Phillies @ Washington Nationals · MLB | total 4.5 | Over @ betPARX + Under @ DraftKings | 3.24% | Sep 16, 8:59 PM ET |
| Philadelphia Phillies @ Washington Nationals · MLB | spread 3.5 | Philadelphia Phillies @ betPARX + Washington Nationals @ DraftKings | 4.41% | Sep 16, 8:59 PM ET |
| Los Angeles Dodgers @ Cincinnati Reds · MLB | spread 1.5 | Cincinnati Reds @ betPARX + Los Angeles Dodgers @ DraftKings | 0.40% | Sep 16, 8:14 PM ET |
| San Diego Padres @ Colorado Rockies · MLB | total 12.5 | Over @ betPARX + Under @ DraftKings | 11.66% | Sep 15, 11:05 PM ET |
| Boston Red Sox @ Texas Rangers · MLB | moneyline | Boston Red Sox @ betPARX + Texas Rangers @ DraftKings | 2.45% | Sep 15, 9:18 PM ET |
| Detroit Tigers @ Toronto Blue Jays · MLB | moneyline | Detroit Tigers @ DraftKings + Toronto Blue Jays @ betPARX | 0.35% | Sep 14, 9:16 PM ET |
| Detroit Tigers @ Toronto Blue Jays · MLB | spread 1.5 | Detroit Tigers @ DraftKings + Toronto Blue Jays @ betPARX | 0.72% | Sep 14, 9:16 PM ET |
| New Orleans Saints @ Baltimore Ravens · NFL | moneyline | Baltimore Ravens @ DraftKings + New Orleans Saints @ betPARX | 0.21% | Sep 14, 8:31 AM ET |
| Kansas City Royals @ Boston Red Sox · MLB | spread 3.5 | Boston Red Sox @ betPARX + Kansas City Royals @ DraftKings | 14.52% | Sep 13, 7:20 PM ET |
| Texas Rangers @ Arizona Diamondbacks · MLB | moneyline | Arizona Diamondbacks @ DraftKings + Texas Rangers @ betPARX | 0.40% | Sep 12, 8:59 PM ET |
| Texas Rangers @ Arizona Diamondbacks · MLB | spread 1.5 | Arizona Diamondbacks @ DraftKings + Texas Rangers @ betPARX | 1.66% | Sep 12, 8:59 PM ET |
Frequently asked questions
How often do betPARX and DraftKings disagree?
In the last 30 days our scanner recorded 56 game-markets where betPARX and DraftKings quoted the same line at prices whose implied probabilities summed to less than 100% — a cross-book arbitrage — across 72 scans. The average net edge was 3.16% and the largest 14.54%.
Which has lower vig, betPARX or DraftKings?
DraftKings — betPARX measures 5.24% 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 betPARX and DraftKings disagree on most?
MLB (55 game-markets, avg 3.76%); NFL (1 game-markets, avg 0.21%).
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