Casey Mize Props & Best Bets Today

Casey Mize is facing his former team tonight, and the strikeout line is dramatically underpriced at 4.5. Books have shaded this at -172 for the Over, which should tell you something - sharp money is already pounding it. Mize is a different pitcher in 2026, and Detroit's lineup gives him a golden opportunity to pad that K total early in the season.

The Matchup: Boston Red Sox vs Detroit Tigers

Mize is pitching against the Tigers, a team he knows intimately from his time in Detroit. The Tigers rank 24th in MLB in strikeout rate this season, sitting at 23.1% - well above league average in terms of exploitability. Boston's lineup is built around contact hitters and veterans who've seen plenty of Mize already; there's familiarity here, but Mize's stuff plays regardless. The Tigers are swinging at 31% of pitches outside the zone early this season, which is exactly what a guy with Mize's fastball-slider combination wants to see. Expect Mize to work deep into counts and rack up whiffs.

Pitcher Strikeouts: 4.5 (Over -172 / Under 128)

Mize has posted a 27.8% strikeout rate over his last 12 starts dating back to last season, and that number is climbing. He's thrown his fastball 59% of the time in April 2026, up from 52% last year - a clear signal that he's trusting his velocity more and relying less on finesse. Against a Tigers lineup that strikes out at a 23.1% clip and chases at a 31% rate outside the zone, Mize should be able to get to five or six strikeouts without breaking a sweat. The book has priced this at -172, meaning they expect him to clear 4.5 Ks easily - but they're still not giving you enough juice on the Over. Mize went over 5 strikeouts in three of his last four starts against AL East competition. This line screams value on the Over.

Pick: OVER 4.5 (-172)

🔒 Best Bet Tonight

The Over 4.5 strikeouts is the play. Mize is in peak form, the Tigers are vulnerable to the strikeout, and -172 doesn't account for how much sharper his stuff has become in 2026. This isn't a squeaker - expect him to hit 5 or 6 Ks comfortably. The early-season data supports this, the matchup favors it, and the pricing is behind the curve. Lock it in.

Best Bet: OVER 4.5 Strikeouts (-172)