St. Louis Cardinals vs. Arizona Diamondbacks Analysis, 7/17/2026 MLB Predictions, Top Picks & Odds

Home » St. Louis Cardinals vs. Arizona Diamondbacks Analysis, 7/17/2026 MLB Predictions, Top Picks & Odds

  • Matchup: St. Louis Cardinals vs Arizona Diamondbacks
  • Date: Friday, July 17, 2026
  • Venue: Chase Field, Phoenix, AZ
  • Broadcast: DBACKS.TV
  • Betting Odds: St. Louis (+110) Arizona (-132)

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The Arizona Diamondbacks, currently at 49-47, will host the St. Louis Cardinals, holding a record of 50-45, at Chase Field on Friday night. The betting line has St. Louis at +110, while Arizona is positioned at -132. The game’s total is set at 8 runs. The starting pitchers include Andre Pallante for the Cardinals and Merrill Kelly for the Diamondbacks.

MLB Picks for St. Louis Cardinals and Arizona Diamondbacks

St. Louis boasts a slugging percentage of .390 and has been struck out 735 times while also walking 304 times. The team has accumulated 417 RBIs and 767 hits this season, yielding a batting average of .242. The Cardinals have recorded 131 doubles and hit 107 home runs, scoring a total of 429 runs, alongside a team on-base percentage of .318. Averaging 4.5 runs per game, they rank 14th in MLB.

With a strikeout-to-walk ratio of 2.25, the Cardinals’ pitching staff maintains a WHIP of 1.33. This season, they’ve yielded 94 home runs and given up a total of 423 runs (ranking 14th in the league). St. Louis has allowed 809 hits (approximately 8.6 per 9 innings) and 389 earned runs, leading to a team ERA of 4.13, placing them 12th in baseball. Their pitchers have notched 715 strikeouts, issued 318 walks, and carry a FIP of 4.15 for the season.

The Cardinals’ bullpen has entered games with runners on base 106 times and has made 109 appearances in high-pressure scenarios. Their bullpen has secured 63 holds this season, ranking fourth in the league, and has a save conversion rate of 65.9%. Having participated in 110 save situations, they’ve recorded 29 saves while failing to convert 15 out of 44 opportunities. The relief staff has inherited 156 runners this season, with 35.3% crossing home plate, while the Cardinals have utilized 324 relief pitchers so far.

This season, the St. Louis Cardinals have achieved 2,546 putouts, 889 assists, and made 46 errors, maintaining a fielding percentage of .987, good for 12th in MLB. They have successfully turned 84 double plays, converting 69.7% of balls in play into outs across 7,638 innings, placing them 17th among major league teams.

Pallante, with a career record of 34-35, has a FIP of 4.20 after facing 2,406 batters in the majors. He has allowed 569 hits (9.1 hits per 9 innings) and issued 209 walks, holding an earned run average of 4.26 (265 earned runs). His WHIP stands at 1.389, with 560 innings pitched and 393 strikeouts in his MLB journey thus far.

On the other hand, the Arizona Diamondbacks have hit 89 home runs and recorded 397 RBIs this season. They have also tallied 161 doubles, walked 304 times, and scored 416 runs, resulting in a team on-base percentage of .307 and a batting average of .237. The Diamondbacks maintain a team slugging percentage of .384 and are averaging 4.33 runs per game, ranking 19th in the league. They have struck out 702 times (28th in MLB) and amassed 755 hits.

With a team WHIP of 1.270 and a FIP of 4.43, the Diamondbacks rank 22nd in MLB for total hits allowed, having conceded 802. Their pitching staff has permitted 429 runs this season, leading to a team ERA of 4.21, with 396 earned runs allowed. Their strikeout-to-walk ratio stands at 7.00 (655 strikeouts vs. 273 walks), having surrendered 116 home runs and yielding 4.56 runs per 9 innings (18th in baseball).

Currently, the Diamondbacks have dealt with 90 save situations, recording 54 holds and 10 blown saves. Their bullpen has faced 35 save opportunities this year, successfully saving 25. The Diamondbacks’ relief pitchers have an inherited run scoring rate of 27.0% from their 115 inherited runners. They have participated in 102 high-leverage situations, with 81 instances having runners on base, ranking them 8th in the league with a save rate of 71.4%. A total of 314 bullpen pitchers have taken the mound for them this season.

Throughout 7,620 innings played, the Diamondbacks have achieved a defensive efficiency of 71.5%, placing 5th in professional baseball. Their defense has turned 80 double plays, recording a fielding percentage of .990, which ranks 3rd in the majors. They have accumulated 843 assists, 35 errors, and 2,540 putouts this season.

In his professional career, Kelly has surrendered 1,010 hits while achieving 970 strikeouts over 1,101 innings pitched. He has allowed 478 earned runs, holding a WHIP of 1.224 and a FIP of 3.8. With a strikeout-to-walk ratio of 2.87, he has faced 4,554 opponents throughout his career. Kelly holds a win-loss record of 72-61 and carries a 3.91 ERA, allowing 8.3 hits per 9 innings.

Which team will prevail in tonight’s MLB contest regarding the spread or moneyline?

Prediction: Back St. Louis (+110)

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Pick: St. Louis Cardinals (+110)
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