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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.


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.


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.


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.


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.

👉 Stay ahead of the market every day with the Sports Betting Index Reports at ATSStats.com.

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