Diamondbacks vs Cardinals: TV, Time and July 23 Stakes

The Arizona Diamondbacks visited Busch Stadium in St. Louis on Thursday, July 23, for a makeup game against the Cardinals a fixture originally postponed due to inclement weather on June 25 with both clubs separated by half a game in the National League Wild Card race. First pitch was at 5:15 p.m. ET.

Where to Watch Diamondbacks vs Cardinals

Fans in the Phoenix market can catch the game on DBACKS.TV, while St. Louis viewers have Cardinals.TV, per MLB's official Cardinals probable pitchers page. Nationally, MLB.TV carries the broadcast for out-of-market subscribers. Fubo is also listed as a streaming option regional blackout restrictions apply depending on your location.

The Cardinals' radio call goes out on KMOX 1120 AM and 104.1 FM, with a Spanish-language broadcast on WIJR 880 AM. Arizona's radio coverage runs on ESPN 620 AM and La Campesina 101.9 FM.

Why This Game Was Rescheduled

MLB's official postponement notice confirms the June 25 series finale at Busch Stadium was called off due to bad weather, with July 23 set as the makeup date at 4:15 p.m. CT the same start as the 5:15 p.m. ET first pitch listed on broadcast schedules, two ways of saying the same thing depending on which time zone you follow.

The Cardinals closed out a 2-4 road trip out West before this contest, dropping two of three to the Diamondbacks at Chase Field over the weekend Arizona rallied from a seven-run deficit to win the finale 8-7 in ten innings on July 19 then going 1-2 against the Angels in Anaheim. Arizona came into the makeup having won back-to-back series and gone 4-2 on its homestand, capping it with a 15-5 rout of the Athletics on Wednesday. James McCann hit his 100th career home run and Ryan Waldschmidt slugged his first as part of a seven-run fifth inning that broke the game open.

The Standings Picture

Arizona entered at 53-49, sitting second in the NL West. St. Louis stood at 52-49, third in the NL Central, per the official MLB standings page. Those records make the gap negligible one game separated them in the Wild Card picture heading into first pitch, with both clubs in position for a postseason berth if they hold their footing through August.

The Diamondbacks were 4-2 against the Cardinals in the 2026 season entering the makeup. Arizona also holds a road winning percentage of .449 entering the trip, helping set up the Cardinals as the home favorite despite the Arizona club's recent form.

Pfaadt vs McGreevy: The Pitching Matchup

Right-hander Brandon Pfaadt started for Arizona at 4-1 with a 4.58 ERA this season. St. Louis sent out Michael McGreevy, who entered Thursday's start with a 4-7 record despite a 2.92 ERA across 19 starts. McGreevy has covered 108 innings with a 1.10 WHIP and 71 strikeouts against 24 walks numbers that reflect a pitcher performing consistently well while taking losses on a club that has not always scored in time.

McGreevy was the 18th overall pick in the 2021 MLB Draft. The gap between his run prevention and his win total has been the defining statistical tension of his 2026 season.

For the MLB All-Star Game in Philadelphia last week, the Cardinals sent four representatives and Jordan Walker entered the week as the Home Run Derby headliner. Walker, hitting .293 with 22 home runs through 95 games, beat Kyle Schwarber 12-11 in the Derby final at Citizens Bank Park on July 13, according to the official MLB event recap. He became the first Cardinal to win the competition.

JJ Wetherholt and the Cardinals' Emerging Core

Rookie second baseman JJ Wetherholt, the Cardinals' first-round selection (seventh overall) in the 2024 draft, made his MLB debut on March 26 and had drawn consistent attention in his first season. The Cardinals signed him to an eight-year, $112.5 million extension in July a signal of how the front office views him as part of their next competitive window.

Wetherholt's 15th home run of the season, struck against the Los Angeles Angels on July 22, handed St. Louis a 1-0 victory the day before this makeup, per a Reuters MLB roundup.

Walker and Wetherholt arrived in the same Cardinals lineup through different routes Walker a first-round pick from 2020 developed into the organization's Home Run Derby champion, Wetherholt a 2024 college bat who spent barely a year in the minors before reaching St. Louis on Opening Day. The Cardinals built this roster to be competitive by 2026. Whether it holds together through July and August will depend on games exactly like this one.

After Thursday

The Diamondbacks continue east following this series, starting a 10-game road trip that runs through Washington, then Pittsburgh. St. Louis hosts Cincinnati from July 24, followed by the Cubs.

Both clubs control their own Wild Card positioning heading into the final two months. Arizona's schedule tilts road-heavy; the Cardinals have home advantage in their next stretch. The makeup at Busch Stadium, quietly rescheduled from a rain date five weeks ago, turned out to carry more weight than anyone planned for at the time.

The 2026 MLB Futures Game, which aired July 12 from Citizens Bank Park ahead of the All-Star break, featured several prospects from both organizations a reminder that the roster-building behind this Cardinals resurgence extends well beyond the current 25-man group.