The Cubs have spent the last couple of weeks looking more like the team they were at the start of the year, and the timing could hardly be better. Chicago has ripped off 15 wins in its last 19 games since June 11, a surge that includes a four-game sweep of the Mets and a series win over the Brewers. That run has helped steady a season that had veered off course after a brutal ten-game losing streak.
Now comes a holiday weekend series with real division weight attached. The Cardinals are headed to Chicago for three games, with the middle game set for primetime on 'Merica's 250th birthday.
The Cubs enter the set 3.0 games ahead of St. Louis for second place in the NL Central, while Milwaukee still sits 5.5 games in front of Chicago for the division lead.
The offense is arriving hot, and that matters in a series like this. Chicago tied a league high in 2026 with 23 runs on Wednesday afternoon, then followed that up by crushing 13 home runs over the last two games.
Over the last 15 days, the Cubs have led baseball with a .887 OPS and 104 runs scored. The next closest team in runs is the Phillies, and they’re at 89.
But the games still have to be pitched, and that’s where the Cubs’ newly announced rotation for the weekend becomes the headline.
Friday opens with David Peterson making his second start in a Cubs uniform against Andre Pallante. Peterson’s first outing with Chicago was encouraging: after a leadoff homer put him behind early, he settled in and worked 5.2 innings, allowing two earned runs and five hits without issuing a walk. The Cubs were hoping his ground-ball style would play up behind their infield defense, and the first start offered a pretty good sign that it can.
Pallante, meanwhile, already has a rough memory against Chicago this season. When he faced the Cubs on May 29, he was chased after just 3.0 innings, with Chicago tagging him for eight hits and four runs. Even so, he’s been effective for much of the year, carrying a 3.83 ERA and one of the league’s highest ground-ball rates.
Saturday brings the biggest start of the series, with Shota Imanaga matched up against Kyle Leahy. Imanaga has looked a touch sharper lately.
Against the Padres, he allowed nine hits but kept them to two runs over 6.1 innings, and he didn’t walk a batter for the first time since Mid-May. Still, his most recent outing against St.
Louis went sideways, as the Cardinals scored five runs and launched three homers. That’s the danger zone with Imanaga, whose issues with the long ball have shown up before.
Leahy gives St. Louis a different look.
He works with a deep mix, good extension, and enough deception to make hitters uncomfortable. Chicago didn’t do much against him the last time around, managing just one earned run and four strikeouts.
The Cubs have had trouble with breaking balls this season, and Leahy leans on both a curveball and slider as key secondary pitches.
Sunday closes the set with Javier Assad facing Matthew Liberatore. Craig Counsell said earlier this week that Assad is expected to make at least one more start before the All-Star break, and the Cubs have multiple starters moving in the right direction in rehab, with hopes they can return when the second half begins.
Assad’s early-June run has cooled off. Over his last three outings, he has allowed nine runs and six home runs combined.
He can still look sharp on some days, but the consistency hasn’t been there lately. He has not faced the Cardinals this season, so this one feels wide open.
Liberatore has had his own share of volatility. He enters with a 5.33 ERA and has been hit hard in plenty of starts, including a June in which he gave up 23 runs across five outings.
Yet he did turn in one of his best performances against Chicago on May 31, when he threw 5.1 scoreless innings with four strikeouts. Whether that was a real sign of what he can do or simply a product of the Cubs’ slump at the time is part of the question heading into Sunday.
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