Do Bigger MLB Favorites Win By Larger Margins?
Sportsbooks adjust moneyline odds based on the perceived difference between teams.
But does a larger favorite actually win by more runs on average?
We analyzed historical MLB games across different odds ranges.
Heavy Favorites (-200 or Higher)
SU: 4,831 – 2,021
Win Rate: 70.5%
Average Margin: +1.9 runs
ROI: +0.8%
Heavy favorites win a large majority of games and tend to win by nearly two runs per game on average.
Mid-Range Favorites (-120 to -150)
SU: 12,747 – 9,973
Win Rate: 56.1%
Average Margin: +0.5 runs
ROI: -1.7%
Mid-range favorites win more modestly, with an average margin of just half a run per game.
Pick’em Games
SU: 512 – 598
Win Rate: 46.1%
Average Margin: -0.2 runs
ROI: -10.9%
When sportsbooks rate teams as nearly equal, outcomes become much more unpredictable.
What The Data Shows
The historical results reveal a clear pattern:
• Bigger favorites tend to win by larger margins
• Even strong favorites rarely win by huge margins consistently
• Sportsbooks generally price favorites accurately over large samples In exploring historical sports betting strategies overview, it’s essential to recognize the nuances involved in betting on favorites versus underdogs. Trends from past data indicate that relying solely on perceived strength may not yield consistent profits in the long term. Additionally, analyzing historical performance can provide insights into when to place bets and which teams are more likely to outperform expectations.
Hello, I found your website while browsing in your niche. Love the content.
You can tell this is built around actual experience, not just theory.
Definitely separates itself from the usual betting advice out there.
This is the kind of framework that actually scales long-term.
I always assumed favorites win by multiple runs pretty often
That’s a really common assumption. In reality, most games are decided by pretty small margins, even when the favorite wins.
I always assumed favorites win by multiple runs most of the time
That’s a really common assumption. In reality, most MLB games — even with favorites — are decided by small margins.
wish you best and best