Reds vs. Cardinals
Prediction, Odds & Props
Jun 21 | MLB AI Picks

Updated: 2025-06-19T03:31:50.923562ZBy Remi at Leans.AI — AI picks for ATS, ML, OU & props

The Cincinnati Reds journey to Busch Stadium to face the St. Louis Cardinals on June 21, 2025, in what could be a pivotal midseason showdown for both teams. With contrasting recent form — Cincinnati’s rotation looking solid and St. Louis enjoying a home resurgence — the matchup promises to hinge on pitching depth and late-game bullpen execution.

Get key insights, betting trends, and AI-powered predictions to help incorporate into your betting strategies.

AI Sports Betting Algorithm Remi

GAME INFO

Date: Jun 21, 2025

Start Time: 2:15 PM EST​

Venue: Busch Stadium​

Cardinals Record: (41-35)

Reds Record: (39-37)

OPENING ODDS

CIN Moneyline: +162

STL Moneyline: -195

CIN Spread: +1.5

STL Spread: -1.5

Over/Under: 9

CIN
Betting Trends

  • The Reds are 30–27 against the run line this season and have gone 4–2 ATS on Saturdays, though their last ten away games sit at an even 5–5 ATS. These mixed results reflect solid consistency, especially from their starting staff.

STL
Betting Trends

  • Slumping early, St. Louis has rebounded and won four straight games overall, recently cashing in ATS results at home in interleague play, though their season ATS figures remain slightly under .500 entering June 21.

MATCHUP TRENDS

  • These clubs have hit the “under” in six of their last seven interleague games at Busch Stadium, and Cincinnati’s bullpen has recorded a shutout performance within the past week — suggesting this game may trend toward a low-scoring, tightly-contested result.

CIN vs. STL
Best Prop Bet

  • Remi's searched hard and found the best prop for this matchup: J. Fraley over 0.5 Hits+Runs+RBI.

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Cincinnati vs St. Louis Prediction & Odds:
Free MLB Betting Insights for 6/21/25

The June 21, 2025 matchup between the Cincinnati Reds and the St. Louis Cardinals at Busch Stadium offers a tightly wound divisional clash between two clubs heading in different recent trajectories but bound by a shared need for midseason consistency. Cincinnati enters the contest leaning heavily on its starting pitching, with southpaw Andrew Abbott expected to be a key figure after turning in a stellar shutout performance earlier in the week. The Reds have built a sturdy identity around their rotation and defense, managing a solid 30–27 record against the spread and showing particular reliability on Saturdays, where they are 4–2 ATS. Their pitching-first approach has allowed them to keep games close, and with a bullpen that recently pieced together a shutout inning streak, they’re well-positioned to handle tight, low-scoring affairs. On the other side, the Cardinals arrive in the midst of a four-game winning streak, sparked by sharper performances from the rotation and improved execution at the plate. Andre Pallante’s recent six-inning scoreless outing sets the tone for a team that is finally regaining its balance after a shaky start. While their ATS record remains modest overall, St. Louis has fared better at home in recent interleague and division matchups, especially when their bullpen executes.

The Cardinals’ offense, built around high-contact, low-strikeout hitters like Lars Nootbaar and Nolan Arenado, thrives in situational baseball and tends to wear down opposing pitchers with smart at-bats and well-timed pressure. Both teams enter with statistical patterns that support a low-scoring game—six of their last seven head-to-head matchups at Busch Stadium have hit the under, with neither side consistently cracking open big innings. The edge, then, may go to whichever club gets more from its supporting cast, particularly in terms of bullpen stability, defensive sharpness, and offensive execution with runners in scoring position. Cincinnati’s edge lies in its starting rotation and ability to suppress runs through control and pace, while the Cardinals’ recent surge and home-field comfort make them formidable if they can get an early lead and shorten the game with tactical bullpen use. With playoff implications beginning to loom and both clubs desperate to assert themselves in the National League Central hierarchy, this game figures to be a chess match of pitching and late-inning maneuvering rather than a power display. Expect strategy, bullpen matchups, and one or two pivotal at-bats to shape the outcome in a game that, by all indications, should remain close well into the final frame.

Cincinnati Reds MLB Preview

The Cincinnati Reds arrive at Busch Stadium for their June 21, 2025 clash with the St. Louis Cardinals hoping to ride the momentum of a strong starting rotation and the steady leadership of manager David Bell to secure a key divisional win on the road. The Reds have posted a respectable 30–27 record against the spread this season, and their 4–2 ATS mark on Saturdays indicates an ability to start weekends on the front foot. What’s carried them through the season thus far has been pitching, particularly from Andrew Abbott, who recently delivered a standout shutout performance that reaffirmed his role as a stabilizing force in the rotation. Cincinnati’s starters have consistently worked into the sixth and seventh innings, which has helped mitigate any late-game volatility from a bullpen that has seen ups and downs but also put together scoreless streaks over the last ten days. On the offensive end, the Reds have leaned on a combination of speed, youthful aggression, and situational hitting to generate runs. Elly De La Cruz has been a sparkplug both at the plate and on the basepaths, while Spencer Steer and Jonathan India have chipped in with key at-bats during tight games.

While not overly powerful, this lineup is capable of producing consistent contact and pressure when the game plan focuses on patience and execution rather than slugging. Cincinnati’s defense has also been a strength, particularly up the middle, and it plays a crucial role in complementing their pitching-centric approach. The infield has turned key double plays, and the outfield coverage has prevented extra bases in critical moments, giving their pitchers the confidence to challenge hitters. The Reds’ path to success lies in establishing tempo early through efficient innings and stringing together quality at-bats that wear down opposing starters. If they can grab an early lead, their bullpen has shown more structure lately, giving them a chance to close out games without relying on high-risk matchups. While playing on the road has been a mixed bag for Cincinnati, their 5–5 ATS record in their last ten away games reflects a club that competes hard in any environment, even if not always dominant. The key challenge will be maintaining offensive pressure against a Cardinals team that has improved its bullpen and defensive structure in recent weeks. To win or at least cover the run line, the Reds must be precise in situational baseball—advancing runners, minimizing strikeouts, and playing mistake-free defense. If Abbott or another starter can deliver six solid innings and De La Cruz or India can provide a timely hit, Cincinnati has the tools to control the pace and dictate the game. However, their margin for error is slim, and they’ll need to execute with discipline and sharpness across all nine innings to overcome a Cardinals squad that is heating up at home.

The Cincinnati Reds journey to Busch Stadium to face the St. Louis Cardinals on June 21, 2025, in what could be a pivotal midseason showdown for both teams. With contrasting recent form — Cincinnati’s rotation looking solid and St. Louis enjoying a home resurgence — the matchup promises to hinge on pitching depth and late-game bullpen execution. Cincinnati vs St. Louis AI Prediction: Free MLB Betting Insights for Jun 21. Credit USA TODAY/IMAGN

Credit: USA TODAY/IMAGN

St. Louis Cardinals MLB Preview

The St. Louis Cardinals enter their June 21, 2025 matchup against the Cincinnati Reds at Busch Stadium riding a four-game winning streak that has infused their clubhouse with renewed energy and optimism following a rocky start to the season. This recent surge has coincided with vastly improved pitching performances, including a six-inning shutout from Andre Pallante that served as a clear signal the Cardinals’ rotation may finally be rounding into form. Though their overall ATS record remains slightly below .500, St. Louis has shown marked improvement at home, particularly in divisional and interleague matchups, where their style of contact-driven, situational baseball thrives in the pitcher-friendly confines of Busch Stadium. Their resurgence has been anchored by a more stable bullpen, with late-inning relievers stepping up to protect leads more consistently, supported by clean defensive play that’s cut down on unearned runs and fielding miscues. On the offensive side, the Cardinals have embraced a fundamentally sound approach, opting for pressure through movement and patience rather than relying on big bats to win them games outright. Lars Nootbaar and Nolan Arenado have delivered clutch hits and long plate appearances, while Jordan Walker and Tommy Edman continue to provide versatility and spark from both sides of the plate.

Their ability to hit situationally—moving runners, laying down bunts, and stretching singles into doubles—has made them far more dangerous when facing power pitchers like Cincinnati’s Andrew Abbott. The Cardinals’ success has also come from their ability to dictate the pace of the game, particularly at home where they are more aggressive early in counts and more deliberate in bullpen usage. Defensively, St. Louis has tightened its alignment and communication, helping them convert critical outs and kill rallies before they build. This cohesion has translated into improved late-game execution, a weakness earlier in the year that now appears to be a budding strength. At the core of this resurgence is the team’s rediscovered identity—one that values discipline, execution, and low-risk baseball, especially in tight, low-scoring environments. Facing a Cincinnati team that mirrors some of these same strengths, the Cardinals will need to stay one step ahead by capitalizing on any small mistakes and maximizing scoring chances through sharp baserunning and deep counts. Their bullpen, once a point of concern, now gives manager Oliver Marmol flexibility to mix and match based on matchups, and recent results suggest a growing confidence in high-leverage situations. If the Cardinals can continue executing their game plan—staying clean defensively, controlling the tempo through starting pitching, and executing offensively with runners in scoring position—they stand an excellent chance not only to extend their win streak but also to cover the run line. With Busch Stadium’s atmosphere intensifying during their current streak, and a lineup that now blends patience with timely contact, St. Louis is poised to maintain its upward trajectory against a Reds team that will test their resolve inning by inning.

Cincinnati vs. St. Louis Prop Picks (AI)

Remi is pouring through loads of data on each player. In fact, anytime the Reds and Cardinals play there’s always several intriguing angles to key in on. Not to mention games played at Busch Stadium in Jun seemingly never follow normal, predictable betting trends.
Remi's searched hard and found the best prop for this matchup: J. Fraley over 0.5 Hits+Runs+RBI.

Cincinnati vs. St. Louis Prediction (AI)

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Remi, our AI sports algorithm, has been pouring over millions of data from every angle between the Reds and Cardinals and using recursive machine learning and kick-ass AI to boil down the data to a single cover probability.

Interestingly enough, the data has been most fixated on the unproportionally assigned emphasis human bettors regularly put on Cincinnati’s strength factors between a Reds team going up against a possibly healthy Cardinals team. Trends look to say the true game analytics might reflect a slight lean against one Vegas line in particular.

Unlock this in-depth AI prediction and all of our MLB AI picks for FREE now.

Below is our current AI Cincinnati vs St. Louis picks, computer picks Reds vs Cardinals, best bets, model edges, confidence ratings.

DATE GAME LEAN %WIN UNITS LEVEL
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These picks update as information changes—injury reports, weather, and market movement. Each line shows our model’s fair price, the edge versus the market, and a unit confidence rating (1–10). Odds and availability vary by sportsbook and time. Edges are computed against the listed price; value may change after line moves. Always shop for the best number. See the full MLB schedule.

Reds Betting Trends

The Reds are 30–27 against the run line this season and have gone 4–2 ATS on Saturdays, though their last ten away games sit at an even 5–5 ATS. These mixed results reflect solid consistency, especially from their starting staff.

Cardinals Betting Trends

Slumping early, St. Louis has rebounded and won four straight games overall, recently cashing in ATS results at home in interleague play, though their season ATS figures remain slightly under .500 entering June 21.

Reds vs. Cardinals Matchup Trends

These clubs have hit the “under” in six of their last seven interleague games at Busch Stadium, and Cincinnati’s bullpen has recorded a shutout performance within the past week — suggesting this game may trend toward a low-scoring, tightly-contested result.

Cincinnati vs. St. Louis Game Info

Cincinnati vs St. Louis starts on June 21, 2025 at 2:15 PM EST.

Spread: St. Louis -1.5
Moneyline: Cincinnati +162, St. Louis -195
Over/Under: 9

Cincinnati: (39-37)  |  St. Louis: (41-35)

Remi's searched hard and found the best prop for this matchup: J. Fraley over 0.5 Hits+Runs+RBI.. Prices move—always shop for the best number.

These clubs have hit the “under” in six of their last seven interleague games at Busch Stadium, and Cincinnati’s bullpen has recorded a shutout performance within the past week — suggesting this game may trend toward a low-scoring, tightly-contested result.

CIN trend: The Reds are 30–27 against the run line this season and have gone 4–2 ATS on Saturdays, though their last ten away games sit at an even 5–5 ATS. These mixed results reflect solid consistency, especially from their starting staff.

STL trend: Slumping early, St. Louis has rebounded and won four straight games overall, recently cashing in ATS results at home in interleague play, though their season ATS figures remain slightly under .500 entering June 21.

See our latest MLB picks and odds pages for 2025 to compare prices before you bet.

Cincinnati vs. St. Louis Odds

AI algorithm Remi is pouring through mountains of data points on each line. In fact, anytime the Cincinnati vs St. Louis trends are analyzed, there’s always several intriguing observations to key in on. Not to mention games played at extreme temps seemingly never follow normal, predictable patterns.

Cincinnati vs St. Louis Opening Odds

CIN Moneyline: +162
STL Moneyline: -195
CIN Spread: +1.5
STL Spread: -1.5
Over/Under: 9

Cincinnati vs St. Louis Live Odds

Games PTS ML SPR O/U
In Progress
St Louis Cardinals
Chicago Cubs
In Progress
Cardinals
Cubs
1
3
 
-425
 
-1.5 (-150)
O 7.5 (-130)
U 7.5 (+100)
In Progress
Tampa Bay Rays
Toronto Blue Jays
In Progress
Rays
Blue Jays
0
3
+460
-750
+3.5 (-130)
-3.5 (+100)
O 8.5 (-130)
U 8.5 (+100)
Sep 27, 2025 4:06PM EDT
Colorado Rockies
San Francisco Giants
9/27/25 4:06PM
Rockies
Giants
+190
-235
+1.5 (-105)
-1.5 (-115)
O 8 (-105)
U 8 (-115)
Sep 27, 2025 4:11PM EDT
New York Mets
Miami Marlins
9/27/25 4:11PM
Mets
Marlins
-140
+115
-1.5 (+120)
+1.5 (-145)
O 8 (-105)
U 8 (-115)
Sep 27, 2025 4:11PM EDT
Detroit Tigers
Boston Red Sox
9/27/25 4:11PM
Tigers
Red Sox
+100
-120
-1.5 (+165)
+1.5 (-200)
O 8.5 (-110)
U 8.5 (-110)
Sep 27, 2025 5:05PM EDT
Chicago White Sox
Washington Nationals
9/27/25 5:05PM
White Sox
Nationals
-105
-115
-1.5 (+150)
+1.5 (-180)
O 8.5 (-115)
U 8.5 (-105)
Sep 27, 2025 6:05PM EDT
Minnesota Twins
Philadelphia Phillies
9/27/25 6:05PM
Twins
Phillies
+185
-225
+1.5 (-110)
-1.5 (-110)
O 8.5 (-115)
U 8.5 (-105)
Sep 27, 2025 7:11PM EDT
Cincinnati Reds
Milwaukee Brewers
9/27/25 7:11PM
Reds
Brewers
+110
-130
+1.5 (-190)
-1.5 (+155)
O 8 (-110)
U 8 (-110)
Sep 27, 2025 7:15PM EDT
Pittsburgh Pirates
Atlanta Braves
9/27/25 7:15PM
Pirates
Braves
+145
-175
+1.5 (-150)
-1.5 (+125)
O 8 (-105)
U 8 (-115)
Sep 27, 2025 7:16PM EDT
Texas Rangers
Cleveland Guardians
9/27/25 7:16PM
Rangers
Guardians
+120
-145
+1.5 (-190)
-1.5 (+155)
O 7 (-120)
U 7 (+100)
Sep 27, 2025 8:40PM EDT
Arizona Diamondbacks
San Diego Padres
9/27/25 8:40PM
Diamondbacks
Padres
+130
-155
+1.5 (-170)
-1.5 (+140)
O 7.5 (-105)
U 7.5 (-115)
Sep 27, 2025 9:39PM EDT
Houston Astros
Los Angeles Angels
9/27/25 9:39PM
Astros
Angels
-145
+120
-1.5 (+110)
+1.5 (-130)
O 9 (-110)
U 9 (-110)
Sep 27, 2025 9:41PM EDT
Los Angeles Dodgers
Seattle Mariners
9/27/25 9:41PM
Dodgers
Mariners
+100
-120
-1.5 (+175)
+1.5 (-215)
O 7 (-115)
U 7 (-105)
Sep 27, 2025 10:05PM EDT
Kansas City Royals
Oakland Athletics
9/27/25 10:05PM
Royals
Athletics
+100
-120
-1.5 (+155)
+1.5 (-190)
O 10 (-115)
U 10 (-105)
Sep 28, 2025 3:06PM EDT
Baltimore Orioles
New York Yankees
9/28/25 3:06PM
Orioles
Yankees
+144
-172
+1.5 (-146)
-1.5 (+122)
O 9 (-122)
U 9 (+100)

MLB Past Picks

Remi—our in-house AI—prices every game and prop using multi-season priors, tempo/efficiency, injury/usage signals, and market movement.
We publish fair prices, recommended “buy-to” numbers, and confidence so you can bet prices, not teams.

This preview covers Cincinnati Reds vs. St. Louis Cardinals on June 21, 2025 at Busch Stadium.
Odds shown reflect widely available numbers and may update closer to kickoff.

Want more? Check live edges, player props, and line moves on our MLB odds pages, and compare prices before you place a bet.

    LEAN     %WIN     UNITS RESULT
ARI@SD SD -131 57.3% 4 WIN
DET@BOS BOS -115 56.4% 5 WIN
NYM@CHC NYM -110 54.1% 3 WIN
HOU@ATH ATH +118 50.8% 4 WIN
NYM@CHC OVER 7 54.5% 3 WIN
STL@SF OVER 7.5 55.9% 5 LOSS
KC@LAA TYLER TOLBERT UNDER 1.5 BASES 54.4% 4 WIN
MIL@SD UNDER 9 54.7% 4 WIN
MIA@PHI KYLE SCHWARBER OVER 1.5 HITS+RUNS+RBIS 53.3% 3 WIN
WAS@NYM OVER 8.5 56.1% 6 LOSS
LAA@COL COL +108 50.5% 3 WIN
TOR@KC UNDER 9 54.7% 4 LOSS
SEA@KC KC +1.5 62.3% 5 LOSS
NYY@MIN OVER 9 55.1% 4 WIN
MIA@COL OVER 10.5 55.0% 4 WIN
MIA@COL AGUSTIN RAMIREZ OVER 1.5 HITS+RUNS+RBIS 54.3% 4 WIN
SEA@KC BOBBY WITT UNDER 0.5 SINGLES 54.4% 4 LOSS
PHI@LAD LAD -113 54.7% 4 LOSS
NYY@BOS OVER 7.5 54.3% 3 WIN
KC@PHI PHI -130 58.3% 4 WIN
LAD@SF OVER 7.5 54.7% 4 LOSS
NYM@PHI PHI -122 55.6% 4 WIN
KC@CLE KC -104 52.0% 3 WIN
CIN@SD JAKE CRONEWORTH OVER 0.5 HITS 53.1% 3 WIN
WAS@MIA MIA -123 55.2% 4 LOSS
LAA@KC UNDER 9.5 54.9% 3 WIN
TEX@ARI UNDER 9 54.2% 4 WIN
SF@COL UNDER 11.5 56.4% 6 LOSS
SF@COL RAFAEL DEVERS OVER 1.5 BASES 56.1% 6 WIN
MIA@WAS WAS -110 54.4% 4 WIN
NYM@DET OVER 8.5 54.5% 4 WIN
TEX@ARI UNDER 9.5 56.4% 6 WIN
TEX@ARI ALEJANDRO OSUNA UNDER 1.5 BASES 54.1% 4 LOSS
ATL@CHC CHC -116 55.1% 3 WIN
PHI@MIL OVER 8.5 55.0% 3 WIN
ARI@LAD SHOHEI OHTANI OVER 2.5 BASES 54.2% 4 WIN
SEA@CLE CLE +1.5 57.2% 3 WIN
CHC@SF CHC -105 54.1% 4 LOSS
NYY@CHW RYAN MCMAHON OVER 0.5 BASES 54.1% 4 WIN
PHI@NYM OVER 8.5 55.6% 4 LOSS
LAA@TEX LOGAN OHOPPE OVER 1.5 HITS+RUNS+RBIS 54.1% 4 LOSS
KC@CHW KC -109 54.2% 4 WIN
SD@SEA DYLAN CEASE OVER 16.5 OUTS 53.9% 3 LOSS
SD@SEA UNDER 8.5 54.4% 4 LOSS
MIN@TOR JOE RYAN UNDER 2.5 EARNED RUNS 54.1% 4 LOSS
SF@MIL MIL +100 54.0% 6 LOSS
TOR@MIA MIA +1.5 62.0% 6 WIN
CHC@LAA OVER 9.5 54.9% 4 LOSS
BOS@NYY CARLOS RODON UNDER 4.5 HITS ALLOWED 54.2% 4 WIN
KC@DET DET -115 56.1% 5 WIN
CHC@LAA LAA +1.5 57.6% 5 LOSS