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Today's best MLB strikeout prop bets and pitcher K props for Tuesday, May 19. Keith Eyster's expert MLB player prop picks, betting odds, and advanced stat analysis to help you win.
There's a loaded MLB slate on tap today, with all 30 teams in action. The Braves and Marlins kick things off at 4:10 pm ET, with a quintet of West Coast games capping off the night. We've got plenty of high-upside strikeout pitchers taking the mound today, as well as a few hurlers who have been underperforming this season.
I'll offer up a few of my top picks here today, but you'll need to grab a premium pass to see all five of my favorite K prop wagers. Our top MLB writers are posting their favorite props on Discord daily, so gain additional access to those picks with a premium RotoBaller membership.
In this article, I'll provide my favorite prop bets for MLB games on Tuesday, May 19, 2026. Odds will change during the day, so lock in those bets as early as possible and always shop for the best number across multiple sportsbooks or prediction markets! If you love betting on baseball, check out our premium betting tools here at RotoBaller and sign up to access all our daily premium content!
High-Confidence Strikeout Picks
Jacob Misiorowski OVER 7.5 strikeouts (+120 Novig)
As far as strikeouts from starting pitchers go this season, there is Jacob Misiorowski, and then there is everyone else. The Brewers' young phenom is lapping the field with a ridiculous 39.6% strikeout rate and 17.4% swinging-strike rate. The Mis has cleared this line of 7.5 strikeouts in each of his last five starts, and in seven of nine starts overall this season.
Jacob Misiorowski continues to absolutely DOMINATE.
7 IP, 4 H, 0 ER, 0 BB, 10 K
20 whiffs
43% CSWThis kid is an ACE. The improvement he has made with his command has been incredible.
2.12 ERA and 0.90 WHIP with 80 Ks in 51 IP on the season.pic.twitter.com/VVkllO12ww
— Nicho Roessler (@NichoRoessler) May 14, 2026
The matchup against the Cubs is not ideal, but there should be a little extra motivation to shut down their biggest rival and the current division leader. Weather conditions should be more favorable than yesterday, with the wind blowing left-to-right rather than straight out like last night.
Emmet Sheehan OVER 5.5 strikeouts (-124 FanDuel)
Sheehan has pitched much better than his 4.54 ERA this season, with every ERA estimator sitting significantly below his actual results. Two in particular, xFIP (3.12) and SIERA (3.16), have him over a full run better than his actual ERA.
Perhaps even more impressively, Sheehan has continued to miss bats at the same elite level as he did last season. His swinging-strike rate sits at a robust 15.8% and suggests he has been quite unlucky in the raw strikeouts department. He has registered a 28.0% strikeout rate, but it should be much closer to th 30.6% figure he posted last season when his swinging-strike rate was a near-identical 15.6%.
Tonight's matchup adds even more appeal to Sheehan's chances to hit the over here. San Diego has been a below-average offense against right-handed pitching (94 wRC+), while striking out at the 9th-highest rate.
