Red Sox vs. Royals
Prediction, Odds & Props
May 09 | MLB AI Picks
Updated: 2025-05-07T03:31:50.923562ZBy Remi at Leans.AI — AI picks for ATS, ML, OU & props
The Chicago White Sox enter their May 9, 2025 home matchup against the Miami Marlins with a disappointing 10–27 record and a sense of urgency to turn the tide in what has already been a frustrating season. Despite their struggles, the White Sox have shown a surprising pattern of early-game competitiveness, having hit the First Five Innings (F5) Run Line in 12 of their last 20 games—a stat that reflects their ability to start games strong, though they rarely finish with the same intensity. Offensively, the lineup has failed to produce consistent results, but there have been bright spots, most notably Andrew Benintendi, who leads the team with five home runs and has been one of the few to drive in runs with any regularity. However, his efforts have often gone unsupported, as the rest of the order has failed to build sustainable rallies or maintain pressure on opposing pitchers, leading to long stretches of scoreless innings. The team’s pitching staff has been equally problematic, especially the bullpen, which has routinely surrendered leads and struggled to close games—an issue that has demoralized an already inconsistent offense. Starting pitching has occasionally shown promise, with the rotation delivering decent early innings, but without reliable bullpen depth, even leads built in the first five innings tend to vanish by the seventh. Defensively, the White Sox have suffered from a lack of cohesion and too many unforced errors, extending innings and making life difficult for their pitchers. Home field advantage at Guaranteed Rate Field has provided little actual advantage this season, with Chicago frequently outscored late and failing to capitalize on rare scoring opportunities. That said, the upcoming matchup with the Marlins presents a real opening. Miami’s pitching woes mirror many of Chicago’s own issues, and facing a team with a 7.56 ERA over its last 10 games gives the White Sox a chance to get their offense going early and potentially hold a lead if the bullpen can manage even a modestly effective performance. Manager Pedro Grifol will need to be sharp with bullpen usage and perhaps lean on multi-inning relievers to bridge the gap from starter to closer if they’re able to grab an early lead. For the White Sox, the keys will be jumping on Miami’s vulnerable pitching staff early, cleaning up their defense, and finding a way to get nine full innings of competitive baseball rather than fading after the fifth. A win here won’t fix the season, but it would offer a confidence boost and a potential pivot point if they can build on it across the rest of the series. Against a Marlins team equally hungry for wins, the White Sox must seize this rare chance at home to regain some pride, rediscover some rhythm, and prove to their fans—and themselves—that they can still compete on a nightly basis.
Get key insights, betting trends, and AI-powered predictions to help incorporate into your betting strategies.

GAME INFO
Date: May 09, 2025
Start Time: 7:40 PM EST
Venue: Kauffman Stadium
Royals Record: (23-16)
Red Sox Record: (20-19)
OPENING ODDS
BOS Moneyline: -117
KC Moneyline: -102
BOS Spread: -1.5
KC Spread: +1.5
Over/Under: 9
BOS
Betting Trends
- The Red Sox are 2–5 against the spread (ATS) in their last seven games, indicating recent struggles in covering the spread.
KC
Betting Trends
- The Royals have hit the team total under in 17 of their last 23 games, suggesting a trend toward lower-scoring performances.
MATCHUP TRENDS
- In their last five head-to-head matchups, the Royals have won all five games, covering the spread in each, highlighting a recent dominance over the Red Sox.
BOS vs. KC
Best Prop Bet
- Remi's searched hard and found the best prop for this matchup: D. Hamilton under 5.5 Fantasy Score.
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Boston vs Kansas City Prediction & Odds:
Free MLB Betting Insights for 5/9/25
Defensively, the Red Sox have also faltered at key moments, leading to unearned runs and extended innings that have cost them dearly in close games. Despite entering the game as slight favorites, Boston faces a psychological hurdle in overcoming Kansas City’s recent dominance, which includes not just victories but spread covers in each of their last five head-to-head matchups. That trend, paired with the Royals’ ability to win close, low-scoring games, tilts momentum in favor of the home team even if the Red Sox may appear stronger on paper. For Boston, the key to breaking the streak will be getting an early lead and forcing Kansas City to play from behind, where their offense is less equipped to rally. For Kansas City, the formula remains the same—limit mistakes, pitch aggressively, and let Witt Jr. set the tone both offensively and defensively. This series opener carries weight for both clubs: the Red Sox need a confidence-restoring win to stay relevant in the loaded AL East, while the Royals can continue proving they’re no fluke by beating another respected opponent. Given the contrasting styles—Boston’s power potential versus Kansas City’s run prevention—this game could turn on execution in the middle innings and how each bullpen handles high-leverage moments. Whether the Red Sox can end their recent drought against the Royals or if Kansas City continues their quiet run of AL Central success, this matchup is shaping up to be far more competitive and meaningful than preseason expectations would have predicted.
Happy flight. ✈️
— Red Sox (@RedSox) May 8, 2025
🗒️: https://t.co/QYkWMXmU8r pic.twitter.com/iV4F1FJEZ2
Boston Red Sox MLB Preview
The Boston Red Sox arrive in Kansas City on May 9, 2025, with a 20–19 record that reflects both promise and frustration, especially as they continue to search for consistency on the road and against teams like the Royals, who have had their number in recent matchups. The Red Sox have dropped five straight games to Kansas City, and their 2–5 ATS record over their last seven contests speaks to recent underperformance in high-leverage moments, particularly in close games. While their offense has shown sparks—thanks in large part to breakout performances from players like Wilyer Abreu, who has been swinging one of the hottest bats in the lineup—the team has struggled to string together innings, often relying too heavily on home runs and not generating enough traffic on the bases to manufacture runs when needed. Abreu has provided clutch hitting and has been a stabilizing force in the middle of the order, but he hasn’t gotten consistent help from the surrounding bats, making Boston’s offense feast-or-famine depending on the night. Pitching remains a major variable, with the starting rotation failing to consistently pitch deep into games, leaving the bullpen exposed and overworked—an issue that has resulted in late-game collapses and lost leads. The Red Sox have also had lapses on defense, with misplays and untimely errors contributing to their recent slide and extending innings that often come back to haunt them.
Their inability to execute the fundamentals has been a sharp contrast to the Royals’ clean, efficient style of play, and it’s something manager Alex Cora has no doubt emphasized heading into this series. If Boston hopes to change the narrative and take the opener at Kauffman Stadium, they’ll need a composed start from the mound and a more cohesive offensive approach—getting runners on base early, driving pitch counts up, and producing timely hits, not just relying on solo homers. Defensively, they’ll have to play crisp, mistake-free baseball, as Kansas City has thrived on capitalizing on sloppy play. A win would be more than just another tick in the standings—it would help restore some confidence in a team trying to avoid drifting in the competitive AL East. With a talented core and the tools to compete, the Red Sox are capable of turning the page, but it will take discipline, execution, and a much more focused effort than what they’ve shown in recent matchups against the Royals. This series, and particularly this first game, offers a pivotal chance to reset the tone and reassert themselves before tougher matchups ahead.

Credit: USA TODAY/IMAGN
Kansas City Royals MLB Preview
The Kansas City Royals enter their May 9, 2025 matchup against the Boston Red Sox with a strong 23–16 record, riding a wave of early-season momentum that has elevated them to legitimate contenders in the American League. A five-game winning streak against Boston, including multiple ATS covers, has given Kansas City a mental edge heading into this series, and they’ll look to extend that dominance with the same blueprint that’s fueled their surprising success so far: exceptional pitching, clean defense, and just enough timely hitting to stay ahead. Bobby Witt Jr. continues to be the spark for this club, showcasing elite athleticism and production at the plate while also making game-changing plays in the field. Witt’s emergence as a true franchise cornerstone has been matched by a pitching staff that’s quietly become one of the league’s most efficient, anchored by a rotation led by Cole Ragans. Ragans has delivered consistent quality starts, giving the bullpen favorable scenarios to preserve tight leads—a critical piece of Kansas City’s formula, especially considering they’ve hit the team total under in 17 of their last 23 games. While that trend suggests the Royals aren’t overwhelming opponents with offense, it speaks volumes about their ability to play disciplined, low-scoring baseball and win close contests.
Kansas City’s lineup, though not packed with power, has shown maturity in working counts, putting balls in play, and forcing defenses to make plays. Players like Vinnie Pasquantino and MJ Melendez have chipped in with timely hits, complementing Witt’s explosiveness with productive situational at-bats. On defense, the Royals have been remarkably steady, minimizing errors and supporting their pitchers with smart positioning and good fundamentals—a big part of why they’ve consistently kept games within their control. The bullpen has been another asset, especially in late innings where they’ve shut down rallies and protected narrow leads. Manager Matt Quatraro has done an excellent job keeping his roster engaged and focused, managing bullpen arms with precision and getting the most out of every lineup card he submits. Against a Red Sox team that has struggled to close games and suffered from inconsistent starting pitching, the Royals have a prime opportunity to strike early and lean into their strengths. If they can keep Boston’s bats from catching fire and avoid giving up multi-run innings, Kansas City is well-positioned to continue its strong run at home. A win in this series opener would not only reinforce their head-to-head dominance over Boston but also help solidify their status as one of the most fundamentally sound and quietly dangerous teams in the American League. For the Royals, every game is a chance to prove that their early-season performance is no fluke—and they’re doing just that with every efficient, well-executed win.
Maikel's making his mark. pic.twitter.com/SQW0lOjIab
— Kansas City Royals (@Royals) May 8, 2025
Boston vs. Kansas City Prop Picks (AI)
Boston vs. Kansas City Prediction (AI)

Remi, our AI sports genius, has been pouring over mountains of data from every simulation between the Red Sox and Royals and using recursive machine learning and impressive AI to crunch the data to a single cover probability.
Oddly enough, we’ve seen the AI has been most focused on the trending emphasis knucklehead sportsbettors regularly put on player performance factors between a Red Sox team going up against a possibly tired Royals team. It appears the true game analytics appear to reflect a moderate lean against one Vegas line specifically.
Unlock this in-depth AI prediction and all of our MLB AI picks for FREE now.
Below is our current AI Boston vs Kansas City picks, computer picks Red Sox vs Royals, best bets, model edges, confidence ratings.
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DATE | GAME | LEAN | %WIN | UNITS | LEVEL |
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MLB | 9/26 | DET@BOS | UNLOCK THIS PICK | 5 |
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MLB | 9/26 | BAL@NYY | UNLOCK THIS PICK | 4 |
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MLB | 9/26 | ARI@SD | UNLOCK THIS PICK | 4 |
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MLB | 9/26 | NYM@MIA | UNLOCK THIS PICK | 1 |
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MLB | 9/26 | NYM@MIA | GET FREE PICK NOW | 1 | – | |
MLB | 9/26 | COL@SF | UNLOCK THIS PICK | 0 |
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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.
Red Sox Betting Trends
The Red Sox are 2–5 against the spread (ATS) in their last seven games, indicating recent struggles in covering the spread.
Royals Betting Trends
The Royals have hit the team total under in 17 of their last 23 games, suggesting a trend toward lower-scoring performances.
Red Sox vs. Royals Matchup Trends
In their last five head-to-head matchups, the Royals have won all five games, covering the spread in each, highlighting a recent dominance over the Red Sox.
Boston vs. Kansas City Game Info
What time does Boston vs Kansas City start on May 09, 2025?
Boston vs Kansas City starts on May 09, 2025 at 7:40 PM EST.
Where is Boston vs Kansas City being played?
Venue: Kauffman Stadium.
What are the opening odds for Boston vs Kansas City?
Spread: Kansas City +1.5
Moneyline: Boston -117, Kansas City -102
Over/Under: 9
What are the records for Boston vs Kansas City?
Boston: (20-19) | Kansas City: (23-16)
What is the AI best bet for Boston vs Kansas City?
Remi's searched hard and found the best prop for this matchup: D. Hamilton under 5.5 Fantasy Score.. Prices move—always shop for the best number.
What are Boston vs Kansas City trending bets?
In their last five head-to-head matchups, the Royals have won all five games, covering the spread in each, highlighting a recent dominance over the Red Sox.
What are Boston trending bets?
BOS trend: The Red Sox are 2–5 against the spread (ATS) in their last seven games, indicating recent struggles in covering the spread.
What are Kansas City trending bets?
KC trend: The Royals have hit the team total under in 17 of their last 23 games, suggesting a trend toward lower-scoring performances.
Where can I find AI Picks for Boston vs Kansas City?
See our latest MLB picks and odds pages for 2025 to compare prices before you bet.
Boston vs. Kansas City Odds
Remi is pouring through tons of data on each player. In fact, anytime the Boston vs Kansas City trends are analyzed, there’s always several intriguing observations to key in on. Not to mention games played at extreme travel distance almost always follow normal, predictable patterns.
Boston vs Kansas City Opening Odds
BOS Moneyline:
-117 KC Moneyline: -102
BOS Spread: -1.5
KC Spread: +1.5
Over/Under: 9
Boston vs Kansas City Live Odds
Games | PTS | ML | SPR | O/U | |
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Baltimore Orioles
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–
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+190
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O 8.5 (-120)
U 8.5 (+100)
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Sep 27, 2025 2:21PM EDT
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Chicago Cubs
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-175
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-1.5 (+115)
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U 9.5 (-115)
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Sep 27, 2025 3:09PM EDT
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+130
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+1.5 (-155)
-1.5 (+130)
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O 8.5 (-110)
U 8.5 (-110)
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Sep 27, 2025 4:06PM EDT
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Washington Nationals
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–
–
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+100
-120
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-1.5 (+165)
+1.5 (-200)
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O 8.5 (-110)
U 8.5 (-110)
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Sep 27, 2025 4:06PM EDT
Colorado Rockies
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–
–
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+185
-225
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+1.5 (-110)
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O 8 (-105)
U 8 (-115)
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Sep 27, 2025 4:11PM EDT
New York Mets
Miami Marlins
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Mets
Marlins
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–
–
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-130
+110
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-1.5 (+125)
+1.5 (-150)
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O 8.5 (-105)
U 8.5 (-115)
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Sep 27, 2025 6:05PM EDT
Minnesota Twins
Philadelphia Phillies
9/27/25 6:05PM
Twins
Phillies
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–
–
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+170
-205
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+1.5 (-120)
-1.5 (+100)
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O 8.5 (-115)
U 8.5 (-105)
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Sep 27, 2025 7:11PM EDT
Cincinnati Reds
Milwaukee Brewers
9/27/25 7:11PM
Reds
Brewers
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–
–
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+125
-150
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+1.5 (-180)
-1.5 (+150)
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O 8 (-105)
U 8 (-115)
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Sep 27, 2025 7:15PM EDT
Pittsburgh Pirates
Atlanta Braves
9/27/25 7:15PM
Pirates
Braves
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–
–
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+140
-170
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+1.5 (-155)
-1.5 (+130)
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O 8 (-110)
U 8 (-110)
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Sep 27, 2025 7:16PM EDT
Texas Rangers
Cleveland Guardians
9/27/25 7:16PM
Rangers
Guardians
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–
–
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+135
-165
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+1.5 (-180)
-1.5 (+150)
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O 7 (-120)
U 7 (+100)
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Sep 27, 2025 8:40PM EDT
Arizona Diamondbacks
San Diego Padres
9/27/25 8:40PM
Diamondbacks
Padres
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–
–
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+115
-140
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+1.5 (-190)
-1.5 (+155)
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O 7.5 (-120)
U 7.5 (+100)
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Sep 27, 2025 9:39PM EDT
Houston Astros
Los Angeles Angels
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Astros
Angels
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–
–
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-165
+135
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-1.5 (+105)
+1.5 (-125)
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O 9 (+100)
U 9 (-120)
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Sep 27, 2025 9:41PM EDT
Los Angeles Dodgers
Seattle Mariners
9/27/25 9:41PM
Dodgers
Mariners
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–
–
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+100
-120
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-1.5 (+170)
+1.5 (-205)
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O 7.5 (-110)
U 7.5 (-110)
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Sep 27, 2025 10:05PM EDT
Kansas City Royals
Oakland Athletics
9/27/25 10:05PM
Royals
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–
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+100
-120
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-1.5 (+150)
+1.5 (-180)
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O 10 (-110)
U 10 (-110)
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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 Boston Red Sox vs. Kansas City Royals on May 09, 2025 at Kauffman 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.
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LEAN | %WIN | UNITS | RESULT |
---|---|---|---|---|
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 |
CIN@ARI | KEBRYAN HAYES STRIKEOUTS UNDER 0.5 | 56.2% | 6 | WIN |
LAD@SD | SD +110 | 50.9% | 6 | WIN |