Miami Marlins vs. St. Louis Cardinals Betting Prediction, 7/30/2025 MLB Picks, Top Bets & Odds

Home » Miami Marlins vs. St. Louis Cardinals Betting Prediction, 7/30/2025 MLB Picks, Top Bets & Odds

Matchup: Miami Marlins vs St. Louis Cardinals

Date: Wednesday, July 30, 2025

Venue: Busch Stadium, St. Louis, MO

Broadcast: FanDuel Sports Network Midwest

Betting Odds: Miami (+132) St. Louis (-160)

The St. Louis Cardinals (55-53) are set to host the Miami Marlins (50-55) at Busch Stadium this Wednesday. The current moneyline has Miami positioned at +132 while St. Louis opens at -160. The over/under is set at 9 runs. Cal Quantrill and Miles Mikolas are the anticipated starting pitchers for this matchup.

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This season, the Miami Marlins are averaging 4.3 runs per game, placing them 20th in the league. They have scored a total of 446 runs with an on-base percentage (OBP) of .315. The Marlins have registered 178 doubles and hit 97 home runs. With 428 RBIs and 903 total hits, their batting average stands at .252. They have a slugging percentage of .393 and have struck out 829 times, while managing to walk 314 times.

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The Marlins maintain a strikeout-to-walk ratio of 2.51, accompanied by a collective WHIP of 1.31 from their pitching staff. Miami’s pitchers have conceded 111 home runs and a total of 500 runs (24th in MLB). They’ve given up 895 hits (8.6 per 9 innings) along with 461 earned runs. With a team earned run average of 4.44 so far this season (24th in MLB), they’ve fanned a total of 824 batters while walking 328, leading to a team FIP of 4.07.

Throughout the season, Marlins pitchers have entered high leverage situations 114 times with opponents on base 83 times. Their bullpen has accumulated 58 holds thus far (19th in MLB) and boasts a save success rate of 60.5% from 102 save chances. The bullpen has amassed 26 saves this season, missing 17 of 43 opportunities. The Marlins’ relievers have inherited 121 runners, with 32.2% of those scoring.

This season, the Marlins have converted 69.5% of balls in play into outs across 8,409 innings, ranking them 18th in MLB. The Los Angeles Dodgers lead the league with 2,803 putouts, 921 assists, and 55 errors. The Marlins’ fielding percentage sits at .985, placing them 19th in baseball, with a total of 72 double plays.

Cal Quantrill (46-42 career record) holds a FIP of 4.12, having faced 3,453 batters in the majors. He has permitted 810 hits (9.0 per nine innings) and has issued 258 walks. His ERA stands at 4.18 (quarter of those runs allowed) with a WHIP of 1.317. Quantrill has pitched 811 innings, recording 611 strikeouts to date in his career.

The Cardinals have tallied 105 home runs this season along with 461 RBIs. With 195 doubles and 337 walks, they have scored 483 runs. The St. Louis Cardinals have recorded an OBP of .321 and a batting average of .251 so far this season. Their team slugging percentage is .393, generating approximately 4.47 runs per game (13th in MLB). They have struck out 821 times this season (27th in the league) and have 915 hits.

The Cardinals’ pitching staff maintains a team WHIP of 1.289 and a FIP of 3.82. They rank 26th in MLB in total hits allowed with 943. This season, they have yielded 485 runs with a combined ERA of 4.19 (444 earned runs). The K/BB ratio is currently 7.40 (788 strikeouts to 287 walks), with 102 home runs allowed, conceding 4.57 runs per 9 innings (22nd in MLB).

St. Louis’ bullpen has entered 40 save opportunities, converting 26 of them. They stand 13th in MLB with a save percentage of 65.0%, and they have deployed 322 relievers so far this season. Their relievers have recorded 106 high leverage situation appearances with 105 instances of runners on base, inheriting 143 runners with a score percentage of 32.2%. The Cardinals have achieved 63 holds in 106 save situations, alongside 14 blown saves.

The St. Louis Cardinals have executed 83 double plays and maintain a fielding percentage of .989, ranking 5th in the league. They’ve noted 1,043 assists, 45 errors, and a total of 2,864 putouts this season. Over 8,592 innings played, their defensive efficiency sits at 69.3% (20th in MLB).

Miles Mikolas (70-71 career record) has a current ERA of 4.22, allowing 9.2 hits per 9 innings pitched. His strikeout-to-walk ratio stands at 3.73, and he has faced 4,985 batters throughout his MLB career. Mikolas has allowed a total of 562 earned runs, holding a WHIP of 1.210 and a FIP of 4.20. He has given up 1,218 hits with 865 strikeouts across 1,198 innings pitched to date.

Who will emerge victorious in tonight’s MLB clash against the spread or moneyline?

Guy Bruhn’s Prediction: Go with Miami (+132)

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