MLB player props today: Monday's top plays include Ian Seymour [8/25/2025]

Our MLB player props for Monday, August 25, 2025, are locked and loaded, chosen through cutting-edge simulations and high-tech machine learning.

These MLB player props are here today to enhance your betting strategy and feature players like Ian Seymour, Johan Oviedo and Sal Frelick.

Three of today's prop betting opportunities are listed below, with Dimers Pro members receiving unlimited access to our full suite of prop picks and today's MLB hitter projections.

Today's full list of MLB prop bets is led by a player in the Red Sox vs. Orioles game to go over his walks allowed line, with our in-house predictive model identifying an edge of 14% at +125 odds.

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List of MLB prop picks for Monday

While the MLB prop picks on this page for Monday are sorted by win probability, betting on likelihood alone means leaving money on the table.

Astute bettors chase edge—not just probability—and the highest-edge picks are reserved for Dimers Pro users to give them the best chance at winning.

Ian Seymour over 1.5 earned runs (-160)

• Probability: 67.3%
• Edge: 5.8%
• Game: Rays vs. Guardians (6:40PM ET)

Our model has found a strong MLB prop for Monday's Rays vs. Guardians matchup, focusing on Tampa Bay's Ian Seymour. With a 67.3% chance of hitting, we suggest betting on Ian Seymour over 1.5 earned runs at -160 odds, offering an edge of 5.8%.

Johan Oviedo over 1.5 earned runs (-145)

• Probability: 66.7%
• Edge: 7.5%
• Game: Pirates vs. Cardinals (7:45PM ET)

Our model has discovered another high-probability prop for Monday's MLB action, with Pittsburgh's Johan Oviedo in our sights in the Pirates-Cardinals game. We recommend betting on Johan Oviedo over 1.5 earned runs with an edge of 7.5% at -145 odds.

Sal Frelick To Get a Hit 0.5 to get a hit (-175)

• Probability: 66.4%
• Edge: 2.8%
• Game: D-Backs vs. Brewers (7:40PM ET)

According to our analysis, another strong prop for Monday's MLB action focuses on Milwaukee's Sal Frelick in the D-Backs vs. Brewers game. Our recommended bet is Sal Frelick To Get a Hit 1.5 to get a hit at -175 odds, with a 66.4% chance of hitting and a 2.8% edge.

MLB player prop picks: Monday, August 25, 2025

A quick summary of today’s top three props by probability according to our model as of 6:56PM ET:

Matchup	Prop	Odds	Probability	Edge
Rays vs. Guardians	Ian Seymour Over 1.5 Earned Runs	-160 @ DraftKings	67.3%	5.8%
Pirates vs. Cardinals	Johan Oviedo Over 1.5 Earned Runs	-145 @ DraftKings	66.7%	7.5%
D-Backs vs. Brewers	Sal Frelick To Get a Hit	-175 @ BetMGM	66.4%	2.8%

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Monday's MLB props are highlighted by a play with an edge of 14% on the best available odds—the kind of high-value bet you won't find by chasing probability alone.

Dimers Pro users have access to 223 MLB player props at the time of writing, all backed by real betting value.

More on MLB

The prop bets on this page are part of our MLB player props and MLB best bets series.

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Conclusion

For August 25, 2025, our MLB prop bets are locked and loaded, featuring players like Ian Seymour, Johan Oviedo and Sal Frelick. Backed by the latest data and cutting-edge simulations, these picks are here to give your betting strategy the edge it needs.

With the help of AI and automation, this article delivers today's MLB prop bets and insights quickly and accurately, while human oversight ensures high editorial quality. Our predictions are rooted in the latest data to help you make informed decisions.

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