Bally Bet vs Courtside: where their odds disagree
Over the last 30 days, Bally Bet and Courtside quoted the same line at prices that summed to less than 100% on 3 game-markets — a cross-book arbitrage — with an average net edge of 8.44% and a peak of 10.01%. On plain vig, Courtside is the cheaper book of the two. Last disagreement: Sep 16, 2026.
Vig: Bally Bet vs Courtside
| Bally Bet | Courtside | |
|---|---|---|
| Overall overround | 5.29% | 4.03% |
| Moneyline | 4.81% | 3.58% |
| Spreads | 5.14% | 3.90% |
| Totals | 5.70% | 5.49% |
| NFL | 4.89% | 3.69% |
| MLB | 5.51% | 4.38% |
| NBA | 4.84% | — |
| NHL | 5.13% | — |
| MLS | 6.48% | — |
Disagreements by sport
| Sport | Game-markets | Avg net edge | Max net edge |
|---|---|---|---|
| MLB | 3 | 8.44% | 10.01% |
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 |
|---|---|---|---|---|
| New York Yankees @ Minnesota Twins · MLB | total 9.5 | Over @ Bally Bet + Under @ Courtside | 9.77% | Sep 16, 5:26 PM ET |
| New York Yankees @ Minnesota Twins · MLB | moneyline | Minnesota Twins @ Courtside + New York Yankees @ Bally Bet | 10.01% | Sep 16, 5:26 PM ET |
| Chicago White Sox @ St. Louis Cardinals · MLB | total 4.5 | Over @ Courtside + Under @ Bally Bet | 5.55% | Sep 13, 4:48 PM ET |
Frequently asked questions
How often do Bally Bet and Courtside disagree?
In the last 30 days our scanner recorded 3 game-markets where Bally Bet and Courtside quoted the same line at prices whose implied probabilities summed to less than 100% — a cross-book arbitrage — across 3 scans. The average net edge was 8.44% and the largest 10.01%.
Which has lower vig, Bally Bet or Courtside?
Courtside — Bally Bet measures 5.29% overall and Courtside measures 4.03% 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 Courtside disagree on most?
MLB (3 game-markets, avg 8.44%).
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