The Cardinals open the second half of the ‘26 season against the Diamondbacks this weekend. And while the first half went about as well as they could have hoped, what happens next will likely shape how this season is remembered.
Here are five storylines that will define the second half for St. Louis.
1. Can the offense take another step?
JJ Wetherholt, Iván Herrera, Alec Burleson and Jordan Walker have produced at a high level, but the rest of the Cardinals’ offense has struggled to consistently find its rhythm.
St. Louis ranks 15th in MLB in runs scored, which is pretty reflective of an offense that has shown flashes without fully clicking. The return of Lars Nootbaar on June 5 provided a significant boost, and the Cardinals rank ninth in runs scored since he rejoined the lineup.
The production of those five bats will have the greatest influence on their production the rest of the way, but stronger second halves from names at the bottom of their lineup can make this offense more dangerous the rest of the season.
2. Will the starting pitching sustain?
It has not always been pretty, but the Cardinals' rotation owns the fourth-best ERA in the National League (4.08) and regularly gives the club a chance to win.
Michael McGreevy leads the rotation with a 3.01 ERA, while Kyle Leahy has quietly lowered his mark to 3.73 after a rocky start. Andre Pallante is tied for fourth in the Majors with 10 wins, and Dustin May, outside of a few blow-up outings, has been an excellent addition.
If the Cardinals are going to remain in contention, they will need their rotation to continue stacking competitive outings. A prolonged downturn could send them sliding in a crowded Wild Card race.
3. How will the Cardinals handle the Trade Deadline?
With 17 games left before the Aug. 3 Trade Deadline, time is running out for the front office to determine the fate of several potential trade candidates.
Will the Cardinals stay the course and shop pending free agents such as May, JoJo Romero and Ryne Stanek while considering offers for players with additional club control, including Nootbaar, Pallante and Riley O’Brien? A rough stretch coming out of the All-Star break could increase the likelihood of that approach.
But if they are firmly in contention as July ends, would they consider adding to the roster, or at least forgo trading away pieces?
President of baseball operations Chaim Bloom has repeatedly said the Cardinals will not take shortcuts with their long-term vision. That makes major win-now moves unlikely. But the team’s performance over the next few weeks could significantly influence how the front office manages the tension of success now versus building for the future.
4. Will more young talent debut?
The Cardinals have already turned to prospects such as Jimmy Crooks, Blaze Jordan, Bryan Torres and Luis Gastelum for an in-season impact to the Major League roster. More help could soon be on the way.
Outfielder Joshua Báez, MLB Pipeline’s No. 47 overall prospect and No. 3 in the Cardinals’ system, as well as the Cardinals' No. 6 prospect, left-hander Quinn Mathews, both appear to be knocking on the door.
Báez, who leads all Triple-A hitters with 28 home runs, has eye-popping power that is on full display when he is able to make contact with the baseball. Báez has been scuffling at the plate as of late, but if he gets back on track, he may force his way into the Cardinals’ lineup soon.
Mathews has struggled with his command all year, but over his last eight starts, he has posted a 1.87 ERA while striking out 32.5% of the batters he’s faced. The Cardinals' starting pitching has been really solid this year, but Mathews could be an X-factor in the second half with his swing-and-miss potential.
5. Can the Cardinals make the playoffs?
The Cardinals enter the second half just one game out of the third NL Wild Card spot, putting them squarely within striking distance in a heated race for October.
Reaching the postseason was not the primary objective entering this season, but their success has largely been driven by young players who figure prominently into the organization’s future. If that core can keep St. Louis in the race -- or carry it into October -- that only strengthens the view of the team long-term.
We are about to find out if the Cardinals just had a strong first half or if this young core is further along than many expected.