Marlins vs Red Sox Run Line Pick & Sunday Betting Preview (Aug 17)

by | Aug 17, 2025 | mlb

Marlins vs Red Sox Prediction & Best Bets | Crochet Looks to Continue Dominance Against Miami

The Boston Red Sox continue their impressive homestand as they look to complete a sweep against the Miami Marlins on Sunday afternoon at Fenway Park. After securing the series with a 7-5 victory on Saturday, the Red Sox turn to their ace Garrett Crochet to close out the weekend. The Marlins, now without their All-Star outfielder Kyle Stowers due to injury, will counter with right-hander Janson Junk as they try to salvage a game in this series.

Quick Picks:

  • Best Bet: Boston Red Sox -1.5 (-130) ★★★★☆
  • Top Prop: Garrett Crochet Over 7.5 Strikeouts (+115) ★★★★☆
  • Value Play: Under 8.5 Runs (-115) ★★★☆☆

Miami Marlins vs Boston Red Sox Betting Odds & Latest Line Movement

Market Miami Marlins Boston Red Sox
Moneyline +210 -260
Run Line +1.5 (+110) -1.5 (-130)
Total Over 8.5 (-105) Under 8.5 (-115)

Opening Line: Boston -240, Total 8.5

Sharp Money Analysis: Where Pro Bettors Are Placing Their Wagers

The line has seen slight movement since opening, with the Red Sox money line actually increasing from -240 to -260, indicating steady action on the home favorite. What’s more interesting is the run line, where there’s been a slight shift toward the Marlins at +1.5. This suggests sharp money may see some value in the underdog keeping this game competitive, especially with Kyle Stowers’ injury announcement potentially already baked into the opening line.

The total has remained steady at 8.5, though the juice has shifted slightly toward the under. With Crochet on the mound and the Marlins missing their best hitter, professional bettors appear to be respecting Boston’s ace and Miami’s struggling offense.

Pitching Matchup: Janson Junk vs Garrett Crochet – Who Has the Edge?

Miami Marlins: Janson Junk (6-2, 4.06)

  • Solid 6-2 record belies some concerning underlying metrics
  • 1.13 WHIP is impressive, but has benefited from a low BABIP
  • Only 52 strikeouts in 75.1 innings (6.2 K/9) suggests contact-heavy approach
  • Has struggled on the road with a 4.88 ERA away from Miami

Boston Red Sox: Garrett Crochet (13-5, 2.48)

  • Elite 2.48 ERA ranks among the best in the American League
  • 188 strikeouts in 152.1 innings demonstrates dominant stuff
  • 1.10 WHIP and 11.1 K/9 mark him as a true ace
  • Has been nearly unhittable at Fenway, posting a 1.92 ERA at home

Advantage: Significant edge to Boston. Crochet has established himself as one of the premier pitchers in baseball this season, while Junk’s peripheral numbers suggest regression is coming.

Bullpen Breakdown

Boston’s bullpen has been a strength all season, particularly with Aroldis Chapman anchoring the back end. The Cuban closer has converted 22 of 24 save opportunities and provides elite ninth-inning security. The setup men have been equally effective, with Garrett Whitlock, Justin Wilson, and Greg Weissert all recording 15+ holds.

Miami’s relief corps has been more of a mixed bag. Calvin Faucher leads the team with 11 saves, but their bullpen depth is questionable. They showed vulnerability yesterday when Boston staged a late rally, and they’ve had issues holding leads all season.

After yesterday’s game required Chapman to get the final out, Boston’s primary high-leverage relievers may need careful management today. However, with Crochet typically working deep into games, this shouldn’t be a significant concern.

Key Betting Trends & Team Statistics That Matter

  • Boston is 41-22 at Fenway Park this season, including 16-2 in their last 18 home games
  • The Red Sox are 8-3 when wearing their yellow City Connect jerseys in 2025
  • Miami is just 24-39 on the road this season
  • The Marlins are 3-8 in their last 11 interleague games
  • Boston is 17-1 this season when Trevor Story hits a home run
  • The Red Sox lead MLB with 254 doubles and 424 extra-base hits
  • Garrett Crochet has allowed 2 or fewer runs in 17 of his 23 starts this season
  • The Marlins are 4-11 in games after losing the first two of a series

Roman Anthony’s Emergence: Rookie Making His Mark at the Top of Boston’s Lineup

Roman Anthony has been a revelation since being promoted to the leadoff spot. Through his first 55 career games, Anthony has reached base 94 times – a pace only surpassed by Ichiro Suzuki (104) and Yordan Alvarez (100) among American League players since 2000.

His approach at the plate has been particularly impressive for a rookie, working counts and demonstrating excellent plate discipline. Anthony has also shown a knack for turning singles into doubles with aggressive baserunning, adding an element of pressure to the opposition’s defense from the game’s first pitch.

With the Marlins’ pitching staff already struggling to contain Boston’s lineup in the first two games of this series, Anthony’s presence at the top sets the tone and creates immediate scoring opportunities for the middle of the order.

Fenway Park Factor: How the Venue Influences Today’s Game

Fenway Park ranks as the fourth-most hitter-friendly venue in baseball with a 1.093 run factor, though its home run factor (0.956) is slightly below average. The iconic Green Monster in left field turns would-be fly outs into doubles, which plays perfectly into Boston’s league-leading doubles attack.

For a pitcher like Junk who relies on contact rather than strikeouts, Fenway presents a significant challenge. His tendency to allow balls in play could be problematic given Boston’s ability to exploit the park’s unique dimensions.

Crochet, meanwhile, has mastered pitching at Fenway, using his high strikeout rate to neutralize the park’s hitter-friendly tendencies. The afternoon start time also tends to favor pitchers at Fenway, with shadows potentially making it more difficult for hitters to pick up the ball.

Expert Prediction & Best Bets for Marlins-Red Sox Showdown

Primary Play: Boston Red Sox -1.5 (-130)

I’m backing the Red Sox run line with confidence today. The pitching matchup heavily favors Boston with Crochet facing a Marlins lineup now missing their best hitter in Kyle Stowers. The Red Sox have been nearly unbeatable at home over the last month, and their offense has consistently produced multiple-run victories during this stretch.

Junk’s contact-heavy approach is a poor fit for Fenway Park, especially against a Red Sox team that leads MLB in doubles and extra-base hits. I expect Boston to jump on him early and provide Crochet with more than enough support to cover the run line.

Strong Value Play: Garrett Crochet Over 7.5 Strikeouts (+115)

This is my favorite prop bet on the board. Crochet has been a strikeout machine all season, and he’s facing a Marlins lineup that just lost their best hitter and tends to swing and miss frequently. The afternoon shadows at Fenway should further enhance his already-elite stuff.

Crochet has exceeded this strikeout total in 14 of his 23 starts this season, and the matchup couldn’t be better. At plus money, this represents excellent value for a pitcher who could easily reach double-digit strikeouts against this depleted Miami lineup.

Worth Considering: Under 8.5 Runs (-115)

While Boston’s offense has been clicking, I’m expecting Crochet to shut down the Marlins completely. Miami’s lineup wasn’t particularly potent to begin with, and now without Stowers, they’ll struggle to generate much offense. Six or seven runs from Boston paired with minimal production from Miami should keep this under the total.

Player Props Worth Targeting in Today’s Matchup

Player Prop Odds Rating
Garrett Crochet Over 7.5 Strikeouts +115 ★★★★☆
Roman Anthony Over 1.5 Total Bases +120 ★★★★☆
Trevor Story To Record an RBI +145 ★★★☆☆
Agustin Ramirez Under 0.5 Hits +165 ★★★☆☆

Final Thoughts: Boston’s Home Dominance Continues

The Red Sox are playing their best baseball of the season at Fenway Park, and there’s little reason to expect that to change today. With Garrett Crochet on the mound against a Marlins team now missing their offensive leader, Boston is positioned perfectly to complete the sweep.

The pitching matchup, home-field advantage, and lineup disparity all point toward a comfortable Red Sox victory. While the -260 moneyline is too steep, the run line at -130 offers solid value for a team that should win by multiple runs.

I’m particularly confident in Crochet’s ability to dominate this matchup, making his strikeout prop my favorite play of the day. With Boston in the thick of the playoff race and Miami playing out the string, the motivation gap only widens the already considerable talent gap between these teams.

Score Prediction: Boston Red Sox 6, Miami Marlins 1

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