DEMO / SIMULATED DATA — spreads, prices and persistence estimates are seeded for product evaluation. Not connected to any licensed market feed.
NFL · total
Detroit Lions @ Chicago Bears
Total 47.5 · starts 7/28/2026, 11:04:36 AM
4.30%
Arbitrage spread (1 − Σ 1/odds)
Locked ROI 4.50%
equivalence conf 97%
persistence est ~240s
capacity ≈ $6,800
Opposing legs
Side A · BetMGM
+110
Over 47.5
- Decimal odds
- 2.1000
- Quote age
- 12s
Side B · Caesars
+108
Under 47.5
- Decimal odds
- 2.0800
- Quote age
- 3s
Stake calculator
Stake BetMGM
$497.61
Stake Caesars
$502.39
Guaranteed payout
$1,044.97
Locked profit
$44.97
Spread history (last 30 min)
min 0.000%velocity +0.241%/minmax 4.304%
Calculation breakdown
- 1 / decA
- 0.476190
- 1 / decB
- 0.480769
- impliedSum
- 0.956960
- arbitrageSpread = 1 − impliedSum
- 4.3040%
- lockedROI = 1/impliedSum − 1
- 4.4976%
Score components
- Spread
- 0.861
- Persistence prob.
- 0.800
- Execution conf.
- 0.854
- Bankroll fit (default)
- 0.850
- Composite (0–100)
- 50
Score is a heuristic estimate. Only the deterministic math determines whether an arbitrage exists.
Evidence & audit trail
- First seen 5:52:36 AM
- Last seen 6:04:36 AM
- Equivalence key: nfl:evt_002:total:47.5:std
- Provider: demo (simulated)