MLB Sports Betting Index (SBI) Report – Thursday, September 18, 2025

The Raymond Report Sports Betting Index (SBI) tracks betting market performance across Straight-Up (SU) favorites, Over/Under totals, and ATS (runline) favorites. Today’s snapshot shows the chalk holding strong, with the runline and moneyline both trending bullish, while totals remain flat.

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Straight-Up (SU) Favorites – Chalk Still Cashing

• 1-Day: 67% – BULLISH
• 3-Day: 61.3% – BULLISH
• 7-Day: 68.6% – BULLISH
• 1-Month: 57.5% – BULLISH
• Year-to-Date: 55.9% – Neutral

Favorites are dominating across all short-term windows, cashing nearly 69% over the past week. This is a strong bullish signal for moneyline bettors backing chalk.

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Over/Under Totals – Market in Neutral Gear

• 1-Day: 50% Overs – Neutral
• 3-Day: 55.7% Overs – Neutral
• 7-Day: 53.3% Overs – Neutral
• 1-Month: 52.6% Overs – Neutral
• Year-to-Date: 48.6% Overs – Neutral

Scoring has been balanced with no major edge between Overs and Unders. Bettors should approach totals cautiously, as the market continues to self-correct.

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Against the Spread (ATS) Favorites – Runline Bullish

• 1-Day: 67% – BULLISH
• 3-Day: 63.3% – BULLISH
• 7-Day: 70.3% – BULLISH
• 1-Month: 59.4% – BULLISH
• Year-to-Date: 52% – Neutral

Runline favorites are on a heater, hitting over 70% in the past 7 days. Bettors backing chalk -1.5 are seeing consistent returns, making this the strongest signal on today’s board.

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Raymond Report Market Takeaway

📊 Thursday Insights:

• Favorites are controlling the market, both SU and ATS.
• Totals remain balanced, with no consistent lean.
• Short-term investors should continue leaning toward favorites and runline chalk, where the bullish momentum remains strongest.

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