3 Best MLB Strikeout Prop Bets for Tuesday 4/15/25

Within a given MLB slate, there are tons of strikeout props to sort through as there are lines posted for most of the day's starting pitchers.

Across today's action, which seem to present the best value in FanDuel Sportsbook's MLB betting odds?

We're going to dig into that today, laying out my favorite strikeout props across all the action. You can also do some research of your own by digging into our MLB player prop projections.

Please note lines and MLB projections are subject to change throughout the day after this article is published. All MLB odds come from FanDuel Sportsbook. All stats come from FanGraphs and Baseball Savant unless noted otherwise.

Today's Best MLB K Props

Hunter Brown Under 5.5 Strikeouts (-113)

I think Hunter Brown is a phenomenal pitcher, and he's typically someone I want to bet on rather than against. Here, with the market being where it's at, I can take the under without it being viewed as a negative against Brown.

That's because Brown's circumstances are working against him. First, he's on the road, and pitchers typically see a decrease there. It gets worsened with Busch Stadium being a below-average park for strikeouts.

Second, the opposing St. Louis Cardinals are a low-strikeout team. Their active roster has just a 20.7% strikeout rate against righties since the start of last year, about two percentage points below the league mark.

Once you factor in those variables, I've got Brown projected at 5.24 strikeouts tonight. Pitchers in that range have gone under 5.5 strikeouts 61.1% of the time, funneling me towards the under despite my appreciation of Brown's talent.

Jake Irvin Over 4.5 Strikeouts (+114)

Last time out, Jake Irvin struck out seven Los Angeles Dodgers batters across six innings. His task is easier tonight, helping push me toward the over.

Irvin will face the Pittsburgh Pirates. Not only have they struggled broadly, but the active roster has a 23.7% strikeout rate against righties since the start of last year.

Enthusiasm for Irvin stems more from his length than his efficiency; his strikeout rate was just 20.3% last year, and it's at 17.4% this year despite that Dodgers start. He threw 103 pitches in that one, though, giving us a long leash for him to rack up Ks.

I've got Irvin projected at 4.96 strikeouts, making him a favorite to go over on a prop where we're getting plus money.

Ryan Pepiot Under 6.5 Strikeouts (-144)

Truthfully, I'd prefer Ryan Pepiot under 5.5 strikeouts rather than the 6.5 currently offered. My projections have him at just 5.54 strikeouts, meaning he'd be favored to go under 5.5, and we'd probably be getting him somewhere in the +130 range if the mark were set lower. Even as things stand, though, -144 is a value.

Across my database of strikeout projections, 739 pitchers have been projected for between 5.29 and 5.79 strikeouts (within a quarter strikeout of Pepiot's projection in either direction). Those 739 pitchers have gone under 6.5 strikeouts 77.4% of the time. The implied odds here are 59.0%, so it is a nice value even if we are paying a hefty price.

The reason for the skepticism is in part due to pitch count. Pepiot's max this year is 91, and he didn't have many starts in the mid-to-high 90s last year. That makes it tough to burn us with a seven-strikeout night.

He has also benefited from plus matchups this year with three straight poor opponents to open 2025. All three are 23rd or worse in wRC+ against righties since the start of last year. The Boston Red Sox, conversely, are 2nd. Thus, whether it's at 6.5 now or 5.5 at plus money, I'm comfortable betting the under on Pepiot tonight.

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Which strikeout props stand out to you today? Check out FanDuel Sportsbook's MLB betting odds to see the full menu of options.

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The above author is a FanDuel employee and is not eligible to compete in public daily fantasy contests or place sports betting wagers on FanDuel. The advice provided by the author does not necessarily represent the views of FanDuel. Taking the author's advice will not guarantee a successful outcome. You should use your own judgment when participating in daily fantasy contests or placing sports wagers.