ESPN BET vs Fliff: where their odds disagree
Over the last 30 days, ESPN BET and Fliff quoted the same line at prices that summed to less than 100% on 17 game-markets — a cross-book arbitrage — with an average net edge of 5.29% and a peak of 11.64%. On plain vig, ESPN BET is the cheaper book of the two. Last disagreement: Sep 19, 2026.
Vig: ESPN BET vs Fliff
| ESPN BET | Fliff | |
|---|---|---|
| Overall overround | 4.55% | 6.23% |
| Moneyline | 4.12% | 5.61% |
| Spreads | 4.87% | 6.49% |
| Totals | 4.66% | 6.50% |
| NFL | 4.54% | 6.07% |
| MLB | 4.45% | 6.13% |
| NBA | 4.51% | — |
| NHL | 4.69% | — |
| MLS | — | 9.87% |
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 |
|---|---|---|---|---|
| Chicago Cubs @ Cincinnati Reds · MLB | spread 1.5 | Chicago Cubs @ Fliff + Cincinnati Reds @ ESPN BET | 11.28% | Sep 18, 9:36 PM ET |
| Kansas City Royals @ Houston Astros · MLB | total 7.5 | Over @ Fliff + Under @ ESPN BET | 9.13% | Sep 16, 11:01 PM ET |
| Los Angeles Dodgers @ Cincinnati Reds · MLB | total 8.5 | Over @ ESPN BET + Under @ Fliff | 10.90% | Sep 16, 9:14 PM ET |
| Baltimore Orioles @ New York Mets · MLB | spread 1.5 | Baltimore Orioles @ ESPN BET + New York Mets @ Fliff | 0.52% | Sep 15, 10:19 PM ET |
| Philadelphia Phillies @ Washington Nationals · MLB | total 10.5 | Over @ Fliff + Under @ ESPN BET | 1.87% | Sep 15, 8:47 PM ET |
| Detroit Tigers @ Toronto Blue Jays · MLB | spread 2.5 | Detroit Tigers @ Fliff + Toronto Blue Jays @ ESPN BET | 2.44% | Sep 14, 7:44 PM ET |
| Buffalo Bills @ Houston Texans · NFL | moneyline | Buffalo Bills @ ESPN BET + Houston Texans @ Fliff | 2.63% | Sep 13, 3:02 PM ET |
| Kansas City Royals @ Boston Red Sox · MLB | total 7.5 | Over @ Fliff + Under @ ESPN BET | 1.23% | Sep 11, 7:45 PM ET |
| Pittsburgh Pirates @ Chicago Cubs · MLB | spread 7.5 | Chicago Cubs @ Fliff + Pittsburgh Pirates @ ESPN BET | 3.61% | Sep 11, 4:09 PM ET |
| Chicago Cubs @ Milwaukee Brewers · MLB | spread 1.5 | Chicago Cubs @ ESPN BET + Milwaukee Brewers @ Fliff | 3.78% | Sep 8, 9:07 PM ET |
| Boston Red Sox @ Baltimore Orioles · MLB | total 5.5 | Over @ Fliff + Under @ ESPN BET | 1.15% | Sep 5, 9:03 PM ET |
| San Francisco Giants @ New York Mets · MLB | spread 3.5 | New York Mets @ Fliff + San Francisco Giants @ ESPN BET | 1.11% | Sep 5, 5:43 PM ET |
| Milwaukee Brewers @ Cincinnati Reds · MLB | spread 2.5 | Cincinnati Reds @ Fliff + Milwaukee Brewers @ ESPN BET | 8.48% | Sep 4, 10:17 PM ET |
| Miami Marlins @ Kansas City Royals · MLB | total 9.5 | Over @ Fliff + Under @ ESPN BET | 11.64% | Sep 1, 10:11 PM ET |
| Philadelphia Phillies @ Seattle Mariners · MLB | total 6.5 | Over @ Fliff + Under @ ESPN BET | 9.32% | Aug 26, 6:37 PM ET |
Frequently asked questions
How often do ESPN BET and Fliff disagree?
In the last 30 days our scanner recorded 17 game-markets where ESPN BET and Fliff quoted the same line at prices whose implied probabilities summed to less than 100% — a cross-book arbitrage — across 17 scans. The average net edge was 5.29% and the largest 11.64%.
Which has lower vig, ESPN BET or Fliff?
ESPN BET — ESPN BET measures 4.55% overall and Fliff measures 6.23% 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 ESPN BET and Fliff disagree on most?
MLB (16 game-markets, avg 5.46%); NFL (1 game-markets, avg 2.63%).
← all sportsbooks · ESPN BET · Fliff · what arbitrage is · dutching calculator