Cardinals vs Red Sox Prediction — AI Finds CAN'T MISS MLB Lines & Props (Apr 04)
Updated: 2025-04-02T03:31:50.923562ZBy Remi at Leans.AI — AI picks for ATS, ML, OU & props
The Boston Red Sox will host the St. Louis Cardinals at Fenway Park on April 4, 2025, marking Boston’s home opener for the season. Both teams aim to set a positive tone early in the season with a victory in this interleague matchup.
Get key insights, betting trends, and AI-powered predictions to help incorporate into your betting strategies.

GAME INFO
Date: Apr 04, 2025
Start Time: 2:10 PM EST
Venue: Fenway Park
Red Sox Record: (3-4)
Cardinals Record: (4-2)
OPENING ODDS
STL Moneyline: +118
BOS Moneyline: -138
STL Spread: +1.5
BOS Spread: -1.5
Over/Under: 9
STL
Betting Trends
- In their last five games, the Cardinals have covered the spread in 60% of the matchups, averaging 7.4 runs per game.
BOS
Betting Trends
- The Red Sox have covered the spread in 40% of their last five games, averaging 4.2 runs per game.
MATCHUP TRENDS
- Historically, the total runs have gone OVER in 72.7% of the matchups between these two teams, indicating a trend toward high-scoring games.
STL vs. BOS
Best Prop Bet
- Remi's searched hard and found the best prop for this matchup: M. Winn over 0.5 Total Bases.
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St. Louis vs Boston Prediction & Odds:
Free MLB Betting Insights for 4/4/25
The biggest standout has been catcher Ivan Herrera, who recently exploded for a 3-homer, 6-RBI performance—an exclamation point on a week of loud contact and timely hitting. St. Louis has punished mistakes and capitalized on runners in scoring position, two areas where Boston has struggled. The Red Sox are averaging just 4.2 runs over their last five games and have failed to string together consistent rallies. There’s talent in the lineup—young and old—but the timing has been off, and it’s resulted in stranded baserunners and pressure-packed innings for a pitching staff that’s already under strain. Historically, matchups between the Red Sox and Cardinals have leaned toward the dramatic and high-scoring. In fact, over 70% of their recent meetings have hit the OVER in total runs, a stat that makes sense given the hitter-friendly nature of Fenway and the history of fireworks between these franchises. However, if Boston doesn’t find its offensive rhythm soon, they may not be able to keep up. The Cardinals will look to strike early, lean on Fedde’s form, and let their bats stay hot against a vulnerable Red Sox rotation. Ultimately, this matchup could come down to which starting pitcher bends less—and which offense finds a rhythm first. For Boston, it’s about making a statement at home and turning the page. For St. Louis, it’s an opportunity to keep pounding away and announce themselves as early-season contenders.
The Herrera Hat Trick! pic.twitter.com/ZQReYggd2V
— St. Louis Cardinals (@Cardinals) April 2, 2025
St. Louis Cardinals MLB Preview
The St. Louis Cardinals arrive in Boston on April 4, 2025, to face the Red Sox at Fenway Park for what will be Boston’s home opener—but don’t expect the Cardinals to play the role of courteous guests. St. Louis enters the matchup in far better form than their 3–3 record might suggest, having averaged 7.4 runs per game over their last five outings. The bats are cooking, the pitching has been sturdy, and the overall vibe is one of quiet confidence. After a slow start out of the gate, the Cardinals found their rhythm fast and now look to extend that surge against a Boston team still searching for its own. With Erick Fedde on the mound and a lineup brimming with power, St. Louis sees this game as an opportunity to punch early and put pressure on a Red Sox team that’s already wobbling. Erick Fedde takes the ball for St. Louis with momentum on his side. The right-hander is coming off a gem of a first start, in which he pitched effectively, limited hard contact, and demonstrated improved command and movement on his secondary pitches. His current stat line—1–0 with a 1.50 ERA—isn’t just flattering, it’s a sign that Fedde may be turning a corner in his development. Against a Boston offense that has struggled to capitalize with runners in scoring position, Fedde’s ability to get early strikes and induce ground balls could keep the Fenway crowd quiet and the game under control. His poise on the mound will be key in setting the tone for a Cardinals team that has leaned on its pitching staff more than usual to steady the early-season ship.
But make no mistake—the story of the week for St. Louis has been their offensive explosion. Most notably, catcher Iván Herrera has stolen the spotlight with one of the most outrageous single-game stat lines of the young season: 3-for-4 with three home runs and six RBIs. It was the kind of breakout performance that sparks both highlight reels and clubhouse momentum. Around him, the rest of the Cardinals’ lineup has been quietly punishing mistakes and extending innings. Paul Goldschmidt and Nolan Arenado remain the veteran anchors of this offense, but the depth—names like Brendan Donovan, Lars Nootbaar, and Jordan Walker—is giving opposing pitchers no real safe zone. They’re seeing pitches well, drawing walks, and pouncing on mistake fastballs. Against a Red Sox team sending out a struggling Walker Buehler, the Cardinals will be eager to jump on early counts and force Boston into the bullpen quickly. Defensively, the Cardinals have been steady if unspectacular, which is all they’ve needed thanks to solid starting pitching and timely run support. They’ve played clean baseball, limited errors, and haven’t given away extra bases—something that’s especially important in a ballpark like Fenway where chaos often favors the home team. If the Cardinals can stay crisp in the field and keep the basepaths clear, they’ll force Boston to earn everything. For St. Louis, this series isn’t just a road trip—it’s a measuring stick. They’ve found their offensive swagger, they’ve got a reliable arm on the mound, and they’re up against a team that’s already questioning itself. The mission is simple: spoil the party, steal the momentum, and keep hitting like October isn’t seven months away.

Credit: USA TODAY/IMAGN
Boston Red Sox MLB Preview
The Boston Red Sox return to the iconic confines of Fenway Park on April 4, 2025, ready to open their home schedule against a red-hot St. Louis Cardinals squad. At 2–4, Boston isn’t limping into the series so much as they are dragging a duffel bag of early concerns and hoping the familiar sight of the Green Monster can bring some much-needed consistency. The road trip that opened their season was anything but smooth, with pitching stumbles, missed scoring opportunities, and a general lack of rhythm offensively. But home openers have a way of pressing the reset button—at least that’s the hope in Boston. The Red Sox will rely on crowd energy, their veteran leadership, and some urgent adjustments to make sure this series doesn’t snowball into another early-season skid. Walker Buehler gets the nod for the Sox, and that comes with baggage—and not just the kind with TSA tags. Buehler was brought in to stabilize the rotation, add postseason credibility, and give Boston a front-line starter they could trust. So far? Not so great. He enters this matchup with an 0–1 record and a bruised ERA north of 8.00. His first outing was rough, to say the least, and there’s pressure now to show that it was just rust, not regression.
The Cardinals lineup is not the ideal bounce-back opponent, but Fenway is where Buehler will have to start turning things around. His success will depend on regaining fastball command and avoiding the middle of the plate, where the Cards have been feasting all week. Offensively, Boston’s issues stem from inconsistency more than lack of talent. They’re averaging just over four runs per game, which isn’t a disaster—but they’ve failed to capitalize in key moments, stranding runners and falling into mid-inning lulls that stall momentum. The top of the order has yet to sync up, and it’s been a challenge getting multiple players hot at the same time. Veterans like Rafael Devers and Trevor Story will be leaned on to set the tone, while younger bats like Jarren Duran and Triston Casas will need to spark rallies and bring energy to the bottom half of the lineup. If Boston can improve their approach with runners in scoring position, this team has enough pop to make games interesting. Defensively, the Red Sox have been serviceable, but the pitching hasn’t made their job easy. Long innings and shaky command from the starters have forced the bullpen to carry more weight than expected this early. The relievers have done their part, but that formula isn’t sustainable over a 162-game schedule. For Boston to win this series, they’ll need Buehler to go deep and give the bullpen some breathing room. Containing a Cardinals lineup that just put up nearly eight runs a game over its last five will be a major test. This home opener isn’t just about celebration—it’s about correction. The Red Sox need to plant their flag at Fenway early this season and make it clear that they’re not going to be a bottom-half team in the AL East. The pieces are here, but the execution has to catch up. Friday’s game could be the first sign they’re ready to put it all together.
Fenway baseball tomorrow!!
— Red Sox (@RedSox) April 3, 2025
🗒️ https://t.co/sX37UqhITR pic.twitter.com/bSeHwZI2vR
St. Louis vs. Boston Prop Picks (AI)
St. Louis vs. Boston Prediction (AI)

Remi, our AI sports genius, has been pouring over millions of data from every simulation between the Cardinals and Red Sox and using recursive machine learning and kick-ass AI to crunch the data to a single cover probability.
The Algorithm has been most focused on the linear correlation of weight knucklehead sportsbettors regularly put on coaching factors between a Cardinals team going up against a possibly deflated Red Sox team. It appears the true game analytics might reflect a strong 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 St. Louis vs Boston picks, computer picks Cardinals vs Red Sox, best bets, model edges, confidence ratings.
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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.
Cardinals Betting Trends
In their last five games, the Cardinals have covered the spread in 60% of the matchups, averaging 7.4 runs per game.
Red Sox Betting Trends
The Red Sox have covered the spread in 40% of their last five games, averaging 4.2 runs per game.
Cardinals vs. Red Sox Matchup Trends
Historically, the total runs have gone OVER in 72.7% of the matchups between these two teams, indicating a trend toward high-scoring games.
St. Louis vs. Boston Game Info
What time does St. Louis vs Boston start on April 04, 2025?
St. Louis vs Boston starts on April 04, 2025 at 2:10 PM EST.
Where is St. Louis vs Boston being played?
Venue: Fenway Park.
What are the opening odds for St. Louis vs Boston?
Spread: Boston -1.5
Moneyline: St. Louis +118, Boston -138
Over/Under: 9
What are the records for St. Louis vs Boston?
St. Louis: (4-2) | Boston: (3-4)
What is the AI best bet for St. Louis vs Boston?
Remi's searched hard and found the best prop for this matchup: M. Winn over 0.5 Total Bases.. Prices move—always shop for the best number.
What are St. Louis vs Boston trending bets?
Historically, the total runs have gone OVER in 72.7% of the matchups between these two teams, indicating a trend toward high-scoring games.
What are St. Louis trending bets?
STL trend: In their last five games, the Cardinals have covered the spread in 60% of the matchups, averaging 7.4 runs per game.
What are Boston trending bets?
BOS trend: The Red Sox have covered the spread in 40% of their last five games, averaging 4.2 runs per game.
Where can I find AI Picks for St. Louis vs Boston?
See our latest MLB picks and odds pages for 2025 to compare prices before you bet.
St. Louis vs. Boston Odds
AI algorithm Remi is pouring through loads of stats on each player. In fact, anytime the St. Louis vs Boston trends are analyzed, there’s always several intriguing observations to key in on. Not to mention games played at extreme hostile environments can often follow normal, predictable patterns.
St. Louis vs Boston Opening Odds
STL Moneyline:
+118 BOS Moneyline: -138
STL Spread: +1.5
BOS Spread: -1.5
Over/Under: 9
St. Louis vs Boston Live Odds
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Oct 19, 2025 8:04PM EDT
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10/19/25 8:04PM
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–
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+107
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+1.5 (-195)
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O 7.5 (-115)
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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 St. Louis Cardinals vs. Boston Red Sox on April 04, 2025 at Fenway Park.
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.
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LEAN | %WIN | UNITS | RESULT |
---|---|---|---|---|
TOR@SEA | OVER 7 | 54.9% | 3 | WIN |
LAD@MIL | UNDER 7.5 | 56.6% | 6 | WIN |
TOR@NYY | OVER 8 | 54.9% | 4 | WIN |
TOR@NYY | CARLOS RODON OVER 1.5 TOTAL WALKS ALLOWED | 53.3% | 3 | WIN |
NYY@TOR | OVER 7.5 | 54.8% | 2 | WIN |
LAD@PHI | OVER 7 | 53.8% | 3 | WIN |
SD@CHC | CHC -109 | 53.8% | 3 | WIN |
SD@CHC | OVER 7.5 | 54.5% | 4 | LOSS |
SD@CHC | CHC -111 | 54.8% | 4 | LOSS |
CIN@LAD | SHOHEI OHTANI OVER 1.5 BASES | 53.5% | 3 | WIN |
BOS@NYY | OVER 7 | 53.8% | 3 | LOSS |
CIN@LAD | ELLY DE LA CRUZ OVER 0.5 BASES | 54.4% | 4 | LOSS |
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 |