MLB Underdog Player Predictions for Monday (10/20)
Monday, October 20, 2025: Below are three of the best picks for today’s MLB slate on Underdog according to our projections team. Using factors like Statcast data, advanced sabermetrics, weather impacts, and environmental factors, every single pick is going to be based on what our projections say is a meaningful edge. Get access to all of these picks, including much more, by subscribing to the RotoGrinders Props & Pick’em package.
Don’t forget to check out our MLB weather page, which is curated by our Chief Meteorologist, Kevin Roth, to see how that may impact these picks as the day progresses. And you can always stay up to date on exactly what a team’s lineup is by heading to our MLB starting lineups page.
Below, I’ll detail how I’m approaching things on Underdog for this Monday slate.
First… Sign Up to Make MLB Underdog Picks
If you want to play along but haven’t signed up yet, grab a special offer with our Underdog promo code “GRINDERS” to unlock a generous bonus. Underdog – one of the most popular DFS pick’em sites – provides player projections for MLB matchups each day. It is then up to the user to decide whether a player will ultimately exceed or fall short of those projections in the games. With a huge roster of players available from which to choose, we just need to make a minimum of two picks to build an entry.
When making your MLB Underdog picks today, let RotoGrinders do the heavy lifting for you!
Underdog Top MLB Picks for October 20, 2025
Now that you’re signed up, here are some of our top MLB DFS picks on Underdog for Monday:
- George Kirby higher than 11.5 Outs
- Cal Raleigh lower than 0.5 Walks
- Shane Bieber higher than 12.5 Outs
Mariners vs. Blue Jays MLB Underdog Predictions
George Kirby higher than 11.5 Outs
The outs projection for George Kirby looks like a strong pick based on the current data. The Underdog projection of 11.5 compares favorably based on our MLB simulations. This pick projects to hit 60.3% of the time based on the assumptions, and that represents a 5.8% edge.
Cal Raleigh lower than 0.5 Walks
The walks projection for Cal Raleigh looks like a strong pick based on the current data. The Underdog projection of 0.5 compares favorably based on our MLB simulations. This pick projects to hit 60.7% of the time based on the assumptions, and that represents a 4.0% edge.
Shane Bieber higher than 12.5 Outs
The outs projection for Shane Bieber looks like a strong pick based on the current data. The Underdog projection of 12.5 compares favorably based on our MLB simulations. This pick projects to hit 58.2% of the time based on the assumptions, and that represents a 1.6% edge.
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Image Credit: Imagn