The St. Louis Cardinals beat the Cincinnati Reds 3-0 on Tuesday, August 18, 2026 at Great American Ball Park, with right-hander Kyle Leahy earning the win and shortstop Masyn Winn supplying the offensive punch in a clean divisional road victory. Leahy delivered five innings of shutout ball, striking out six without issuing a walk, while Winn went 3-for-4 with a home run and an RBI to pace a Cardinals offense that did exactly what it needed to do against a divisional opponent. Four Cardinals relievers closed it out, with Riley O'Brien picking up the save.

Kyle Leahy Dominates in Five Shutout Innings

Leahy was the story on the mound. Over five innings, he allowed just three hits, struck out six, and walked nobody. That kind of command — six punchouts, zero free passes — makes life easy for everybody behind you, and the Cardinals' bullpen responded in kind.

Ryne Stanek, Gordon Graceffo, George Soriano, and Riley O'Brien combined to throw four perfect innings. Stanek worked a clean frame. Graceffo struck out one in his inning, walking one but allowing no hits. Soriano punched out one in a hitless frame. O'Brien finished it off with a strikeout and a save, giving the Cardinals a combined nine strikeouts and zero earned runs from their pitching staff on the night.

Masyn Winn Carries the Cardinals Offense

On the offensive side, Winn was the clear standout. The Cardinals shortstop went 3-for-4 and hit a home run, accounting for one RBI in the process. In a game where the Cardinals scored just three runs total, Winn's production was load-bearing.

The Cardinals managed enough against Reds starter Andrew Abbott, who went 6.1 innings, allowed four hits and two earned runs, struck out six, and walked two. Zach Maxwell came on in relief for Cincinnati and gave up one more earned run over 2.2 innings on three hits.

Key Performances at a Glance

  • Kyle Leahy (W): 5.0 IP, 3 H, 0 ER, 0 BB, 6 K
  • Masyn Winn: 3-for-4, 1 HR, 1 RBI
  • Riley O'Brien (SV): 1.0 IP, 0 H, 0 ER, 1 K
  • Ryne Stanek: 1.0 IP, 0 H, 0 ER, 0 K
  • Gordon Graceffo: 1.0 IP, 0 H, 0 ER, 1 BB, 1 K
  • George Soriano: 1.0 IP, 0 H, 0 ER, 1 K
  • Andrew Abbott (L): 6.1 IP, 4 H, 2 ER, 2 BB, 6 K

Turning Point: Leahy's Early Command Sets the Tone

The game's defining stretch was the first five innings. Leahy walked nobody and never let the Reds build any momentum at the plate. Cincinnati's offense never found consistent footing, and once Leahy handed it to the bullpen with a lead in hand, the Cardinals' relievers were composed and efficient the rest of the way.

What's Next for the Cardinals

The Cardinals and Reds are scheduled to continue their series in Cincinnati. St. Louis took the opener in the division matchup, so the pressure is on Cincinnati to respond. For the Cardinals, a road win over a division rival — decided by pitching and timely hitting — is a positive result to build on as the regular season continues in August 2026.