St.Louis Cardinals vs Pittsburgh Pirates — Mar 5, 2026 | AI Prediction & Stats

Pittsburgh hands the ball to Mitch Keller, whose late-2025 surge (2.74 ERA over his last nine starts) has carried cleanly into camp. His renewed cutter gives St. Louis’ right-heavy order trouble early; he records six strikeouts the first time through the lineup and limits traffic until the sixth. Miles Mikolas counters for the Cardinals but hasn’t located his sinker with the same precision this spring. Bryan Reynolds ambushes a first-pitch fastball for an opening-frame RBI double, and Ke’Bryan Hayes plates another run with a bloop single in the third. The Cards scratch back in the second on Jordan Walker’s opposite-field homer, but otherwise strand runners as Keller mixes in a steady diet of curveballs. When Paul Goldschmidt finally barrels one in the sixth, it’s only a run-scoring double, tying the game 2-2. Pittsburgh’s bullpen—now anchored by power right-hander Carmen Mlodzinski and converted closer David Bednar—slams the door from the seventh on. In contrast, St. Louis’ bridge inning remains shaky: Giovanny Gallegos surrenders a two-out RBI single to Oneil Cruz in the sixth, and Andre Pallante loses the zone in the eighth, issuing back-to-back walks before Jack Suwinski lines a two-run double off the Clemente Wall. Arenado’s RBI ground-out in the eighth trims it to 5-3, but Bednar works a clean ninth, freezing Masyn Winn with a front-door curve to end it. Key factors behind the prediction: • Recent head-to-head tilt favors Pittsburgh (four wins in the last five), and the Pirates’ left-handed power exploits Busch-born righties in PNC’s short right field. • Keller’s uptick in whiffs versus Mikolas’ declining ground-ball rate provides a decisive edge on the mound. • Pittsburgh’s bullpen depth is improved, while St. Louis is still sorting middle-inning roles after heavy offseason turnover. The Pirates ride early offense and late leverage arms to a 5-3 victory.