Free Pick: Cardinals vs. Diamondbacks Odds
Looking for St. Louis Cardinals vs. Arizona Diamondbacks Free MLB predictions? MLB betting sees the Cardinals taking on the Diamondbacks on 7/17 at Chase Field, in Arizona. This free MLB baseball pick is based on matchup analysis and documented handicapping data tracked by CappersPicks since 2004, with a focus on identifying the strongest betting angle for this Cardinals Diamondbacks matchup..
2026 MLB Handicapping – St. Louis Cardinals vs Arizona Diamondbacks
(50-45) St. Louis Cardinals vs. Arizona Diamondbacks (49-47)
Date: Jul 17, 2026
Time: 9:40 PM ET
Venue: Chase Field in Arizona, AZ
Projected Starting Pitchers: TBD vs. Merrill Kelly
MLB Moneyline Odds: Cardinals -114 | Diamondbacks -106 (Bet Now!)
Today’s MLB Run Line Betting Odds: Cardinals -1.5 | Diamondbacks +1.5
MLB Baseball Gambling Total: O/U: 9
Here’s why I’m backing an Arizona ML bet below in my Cardinals Diamondbacks free pick & gambling prediction for this matchup.
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Cardinals vs. Diamondbacks Gameday
The St. Louis Cardinals travel to Chase Field on July 17, 2026, for a matchup with the Arizona Diamondbacks. St. Louis enters at 50-45 and sits 3rd in the NL Central, while Arizona brings a 49-47 record, holds 2nd in the NL West, and carries a 4-game winning streak into this contest.
Both clubs enter with very different recent momentum.
The Cardinals have gone 4-6 over their last 10 games, although they continue to own a respectable 24-19 road record. Arizona has been much stronger at home with a 27-20 mark and has won 6 of its last 10 games.
The Diamondbacks also hold a slight 2-1 edge in this season’s series against St. Louis. Arizona has outscored the Cardinals by an average of 1.7 runs in those meetings, and past matchups at Chase Field have also favored the Diamondbacks.
Arizona has the momentum, but St. Louis has played well enough on the road to stay dangerous.
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2026 MLB Baseball Handicapping
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St. Louis Cardinals vs. Arizona Diamondbacks Odds & Last 5
Oddsmakers expect a close battle, with the Cardinals listed at -110 on the moneyline and the Diamondbacks close behind at -108. St. Louis is -1.5 at +144 on the runline, while Arizona is +1.5 at -172, giving the home club a slight edge.
Recent form points toward Arizona.
The Cardinals have split recent results after following a pair of wins with a loss to the Braves. Meanwhile, the Diamondbacks enter on a 4-game winning streak that includes a series sweep of the Dodgers, giving them plenty of confidence heading into tonight.
Diamondbacks Stats
Arizona has posted respectable numbers at the plate this season. The Diamondbacks own a .237 batting average that ranks 18th in the league, while their .305 on-base percentage ranks 19th.
The pitching staff has produced middle-of-the-pack results.
The Diamondbacks carry a 4.24 ERA that ranks 17th, while opponents are batting .248 against them, ranking 14th. Arizona has also allowed 116 home runs, placing 13th across the league.
Ketel Marte leads the offense with 17 home runs, while Gabriel Moreno owns a .301 batting average. Nolan Arenado has also contributed 12 home runs while batting .243 this season.
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Cardinals Stats
St. Louis has delivered steady offensive production throughout the season. The Cardinals own a .242 batting average that ranks 14th, while their .316 on-base percentage ranks 12th. They have also hit 107 home runs, placing 14th in the league.
The pitching staff has limited the long ball effectively.
The Cardinals own a 4.14 ERA that ranks 12th, and they have surrendered just 94 home runs, the 2nd fewest in baseball. That ability to keep the ball in the park has been one of the club’s biggest strengths.
Alec Burleson leads St. Louis with 15 home runs and a .273 batting average. Iván Herrera has added 11 home runs while carrying the team’s best .381 on-base percentage, providing another reliable bat in the lineup.
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Cardinals vs. Diamondbacks Pitching Matchup
St. Louis has not yet announced its starting pitcher for this matchup, leaving some uncertainty heading into first pitch. Even so, the Cardinals’ pitching staff has produced a mix of solid outings and inconsistent performances throughout the season.
The starting assignment remains one of the biggest storylines.
Arizona will counter with Merrill Kelly, who owns a 7-8 record, a 5.38 ERA, and 59 strikeouts this season. His ability to challenge hitters has remained an important part of his overall game.
Kelly has experienced some inconsistency, as reflected by both his record and ERA. Still, he has shown he can deliver strong performances when everything is working and will be looking to improve those numbers in this matchup.
Arizona has its starter in place, while St. Louis continues to keep its decision under wraps. That uncertainty adds another interesting element as both clubs prepare for tonight’s game.
St. Louis Cardinals vs. Arizona Diamondbacks bottom line: Arizona enters with the hotter recent form, but St. Louis has enough road success to make this a tightly contested matchup.
St. Louis Cardinals vs. Arizona Diamondbacks Baseball Betting Trends
- The Diamondbacks are 4-1 straight up in their last 5 games.
- Also, the Diamondbacks have hit the over in 3 of their last 5 games.
- The Diamondbacks have covered the run line in 4 of their last 5 games.
- Additionally, the Cardinals are 3-2 straight up in their last 5 games.
- The Cardinals have hit the under in 3 of their last 5 games.
- The Cardinals have covered the run line in 3 of their last 5 games.
Cardinals Diamondbacks Free Pick: Diamondbacks ML -108
Here is my Cardinals Diamondbacks free pick: Arizona has been playing with confidence, and I like the Diamondbacks to keep that momentum going at home. Chase Field has been a difficult place for opponents lately, and this feels like another favorable spot.
The Diamondbacks have won 4 of their last 5 games. They’ve also been covering the run line with consistency during that stretch.
St. Louis has been searching for answers with a 4-6 record over its last 10 games, while Arizona continues to play cleaner baseball on both sides. That recent form gives the Diamondbacks a deserved edge entering this matchup.
The hotter team usually earns the benefit of the doubt.
Momentum is tough to fake.
Arizona has been doing the little things well, from timely hitting to protecting leads late in games. I’ll back the Diamondbacks moneyline and trust the home club to keep rolling.
Today’s MLB Free Pick
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MLB Betting Tweet Of The Day
The mindset stays the same. pic.twitter.com/lXhjJ4yu44
— Arizona Diamondbacks (@Dbacks) July 17, 2026
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