Pete Alonso exits Orioles' 13-1 win over Cardinals with calf flare-up

What happened

Pete Alonso paced the Baltimore Orioles' offense Tuesday night at Busch Stadium, then left the game with a flare-up of his calf injury as the Orioles rolled to a 13-1 victory over the St. Louis Cardinals — the club's most dominant win of the season by run differential, per Yahoo Sports.

Alonso's early exit cast a shadow over what was otherwise a commanding performance. Starter Chris Bassitt worked 6.2 innings, and Anthony Nunez handled the late innings by overpowering Cardinals hitters. All 13 Baltimore runs came between the third and sixth innings, per Yahoo Sports.

Why it matters

The win itself was historic by the Orioles' own 2026 standards. Yahoo Sports reported it as the club's largest margin of victory this season, surpassing their previous best of 12-1 against the Dodgers on June 21. The 13 runs matched their season high, first set on June 5 in a 13-3 victory against the Blue Jays.

But the story that will follow the Orioles into Wednesday morning is Alonso's health. A calf flare-up for a first baseman — a position that demands constant push-off and lateral movement — is the kind of note that turns a celebration into a wait-and-see. Yahoo Sports reported the injury as a flare-up of an existing calf issue, not a new diagnosis, though no timetable or severity assessment has been reported.

Is Alonso expected to play Wednesday?

No update on Alonso's availability has been reported as of this writing. Yahoo Sports noted he left Tuesday's game with the flare-up; whether he is available for Wednesday's contest against the Cardinals at Busch Stadium — with Kyle Bradish projected to start opposite Michael McGreevy — has not been addressed in any club announcement. Fans watching the lineup card drop Wednesday afternoon will want to check that first.

The general mechanics of the injured list are worth understanding here: position players are eligible for the 10-day IL, which would remove Alonso from the active roster but preserve his spot on the 40-man. A 60-day IL placement would remove him from the 40-man count entirely. None of that has been reported for Alonso — this is simply the framework the club would be working within if the injury requires a roster move.

The numbers

Alonso wore No. 25 in Tuesday's win, celebrating alongside second baseman Jackson Holliday (No. 7) after connecting for a three-run home run in the third inning, per Yahoo Sports.

The Orioles' record entering Wednesday sits at 69-74 (.483), placing them 5th in the AL East, 16.5 games behind the division leader. In the Wild Card picture, they rank 6th, sitting 3.0 games relative to the cut line. The five-game losing streak they carried into Tuesday's game is now snapped — though one win does not rewrite a difficult summer.

Where the club stands

The Orioles sit at 69-74 (.483), 5th in the AL East and 16.5 games behind the division leader. The Wild Card math is equally unforgiving: Baltimore ranks 6th, sitting 3.0 games relative to the cut line. That leaves the Orioles in the uncomfortable position of needing to run the table on a nine-game road trip while hoping teams ahead of them stumble.

That road trip continues Wednesday and Thursday in St. Louis before the club travels to face the Athletics on Friday. Kyle Bradish gets the ball Wednesday against Michael McGreevy; Trevor Rogers follows Thursday opposite Gordon Graceffo; Brandon Young is projected to start Friday against Jacob Lopez.

The Cardinals series, at least through one game, went exactly as a team chasing a Wild Card berth would want. The Athletics series beginning Friday will be another opportunity. But nine games on the road is a long time to carry a calf concern at first base, and the Orioles' margin for error — 3.0 games, with the season winding toward September — is not generous.

What we don't know yet

The most pressing unknown is straightforward: how serious is Alonso's calf? Yahoo Sports described it as a flare-up of an existing injury, which suggests this is not a new problem, but the club has not characterized the severity, offered a timetable, or indicated whether a roster move is under consideration. Until Baltimore says otherwise, Alonso's status for the remainder of the road trip is genuinely open.

Beyond Alonso, it is worth noting that the Orioles scored all 13 of their runs in a four-inning stretch. Whether that kind of offensive concentration is sustainable across a nine-game trip — particularly if their most productive hitter is unavailable — is a question the schedule will answer soon enough.

What to watch

The lineup card for Wednesday's game at Busch Stadium is the first thing to monitor. If Alonso is absent, or if the Orioles make a corresponding roster move before first pitch, that will clarify the picture considerably. The club has not announced anything as of this writing.

Beyond the immediate health question, watch how Bassitt's 6.2-inning outing fits into Baltimore's rotation management over the next week. The Orioles are asking their starters to carry a heavy load on a road trip that matters enormously to their postseason math. Bradish on Wednesday, Rogers on Thursday, and Young on Friday represent three consecutive days of rotation decisions.

The 13-1 win was the kind of performance that reminds you why baseball seasons are long: a team sitting 16.5 games out of first place can still put together its most dominant win of the year on a Tuesday night in August. The Orioles needed every run of it. They may need Alonso healthy to keep the momentum going.