The Boston Red Sox carry a four-game winning streak into loanDepot park on Tuesday night, and they are short favorites to make it five. Boston opened the series with a 4-2 win over Miami on Monday, and now the Red Sox hand the ball to rookie left-hander Payton Tolle. The Marlins counter with right-hander Tyler Phillips as they try to steady an uneven stretch at home. The market has drifted toward Boston, yet the run environment in Miami is a factor that cuts the other way. Our headline play leans on Boston’s edge on the mound, with a second angle built around the ballpark.
Last Updated: Tuesday, August 25, 2026
Boston Red Sox vs. Miami Marlins — Time & How to Watch
| Where | loanDepot park, Miami, FL |
| When | Tuesday, August 25 – 6:40 PM ET |
| TV | NESN |
Boston Red Sox vs. Miami Marlins Betting Preview
Pitching sets the tone for this matchup, and it favors the visitors. Tolle has been one of Boston’s best stories this season, posting a 3.08 ERA and a 1.08 WHIP across 21 starts. The rookie misses bats at a high rate, with a strikeout rate near 10 per nine innings. He threw eight shutout innings against Toronto on August 13, and he struck out 14 Athletics on August 7. His last outing was a step back, a loss to Arizona in which he allowed five runs over five innings. Still, the body of work points to a clear front-line arm.
Phillips gives Miami a steadier profile than a difference-maker. He owns a 3.67 ERA and averages close to five innings per start. He also worked in relief on August 18, so his recent routine has been choppy. Boston’s lineup ranks among the more patient groups in the league, and that approach can push a contact pitcher’s pitch count up in a hurry. The upside for Miami is that Phillips limits damage when he keeps the ball down and works ahead in counts.
The standings tilt toward Boston as well. The Red Sox sit at 72-59 and hold an American League wild-card spot. The Marlins are 67-65 and remain on the edge of the National League race, needing a strong close to stay in it. Boston is the hotter team right now, having won four in a row and taken Monday’s series opener on the road. One note for the back end: Miami closer Pete Fairbanks left Monday’s game early with an injury, which thins the Marlins’ late-inning options.
Boston Red Sox vs. Miami Marlins Odds
| Run Line | Moneyline | Total | |
|---|---|---|---|
| Red Sox | -1.5 (+110) | -162 | U 7.5 (-105) |
| Marlins | +1.5 (-130) | +136 | O 7.5 (-115) |
Odds accurate as of August 25, 2026 via TheSpread.com. Odds change, get the latest MLB Odds – Futures – Props
Boston Red Sox vs. Miami Marlins — Who Is the Public Betting?
| Red Sox | 85% | 15% | Marlins |
See the latest MLB Public Betting Splits and make smarter wagers!
Red Sox vs. Marlins Prediction — How Far Can the Rookie Carry Boston?
The most load-bearing signal here is the gap on the mound. Tolle’s swing-and-miss profile matches up well against a Miami lineup that has scored in fits, and a rookie who can pitch deep keeps Boston’s own bullpen fresh. Boston also plays this game as the road team, which matters for margin. A road club bats in the ninth even when it leads, so the Red Sox get an extra turn to add on when they are in front.
The Marlins’ path to keeping this close runs through Phillips and the bullpen. If Phillips keeps the ball on the ground and works five solid innings, Miami can hang around, and one-run games are common in baseball. Roughly a quarter of all games are decided by a single run, and the run-line price reflects that reality. The market has also firmed the Miami side of the run line since the open, a small sign that the books respect the Marlins staying within striking distance.
Weigh those against each other, and Boston’s edge stands out: the better starter, the hotter form, and the extra margin that comes with batting last. The counter-case is a low-scoring, one-run night that lets Miami cover with the cushion. On balance, the read favors the Red Sox pulling away rather than surviving a nail-biter.
The Pick: Red Sox Run Line -1.5 (+110)
Red Sox vs. Marlins Prediction — Will the Bats Go Quiet in Miami?
The ballpark is the anchor for the second angle. loanDepot park has played as one of the most run-suppressing venues in the majors this season, with a park factor several points below league average and a retractable roof that takes the elements out of play. Add a front-line starter in Tolle, and the conditions point toward a lower-scoring night than a neutral park would produce. Miami’s offense has been middle of the pack, which fits the same theme.
The other side of the ledger is real. Phillips carries a 1.37 WHIP and allows traffic, Boston’s lineup is dangerous, and both bullpens have question marks. Fairbanks’ injury and Aroldis Chapman’s save on Monday mean tired or thin relief could let late runs in. If the game turns into a bullpen contest, the number is live to move the other way. Even so, the park and the arm on the hill for Boston carry more weight than the offensive concerns.
The Pick: Under 7.5 (-105)
Final Thoughts and Bonus Angle
A few things will decide whether both angles land. Watch Tolle’s command early, since his lone rough patch this month came when he lost the strike zone against Arizona. If he is sharp, Boston controls the tempo. Watch Miami’s bullpen usage as well, because without Fairbanks the Marlins may have to improvise in the late innings.
There is also a first-five-innings angle worth noting. The starting-pitching gap is widest before the bullpens arrive, and the park plays its biggest role early, so bettors who prefer to sidestep late-game variance often look there. The full-game plays remain the cleaner reads for this card, but the F5 market is a reasonable place to express the same lean. For more plays across the slate, see our latest MLB best bets.
The picks: Red Sox Run Line -1.5 (+110) and Under 7.5 (-105).
MLB Red Sox vs. Marlins FAQ: Tuesday August 25, 2026
What time does the Red Sox vs. Marlins game start?
First pitch is set for 6:40 p.m. ET on Tuesday, August 25, 2026, at loanDepot park in Miami. This is the middle game of a three-game interleague series between the two clubs, and Boston took the opener on Monday to move ahead 1-0 in the set.
What channel is the Red Sox vs. Marlins game on?
The game airs on NESN, the Red Sox regional network, with first pitch scheduled for 6:40 p.m. ET at loanDepot park in Miami. Regional broadcast rights differ by market, so the local telecast may vary depending on where you are watching the game.
Who is pitching for the Red Sox on August 25?
Rookie left-hander Payton Tolle is Boston’s probable starter. He carries a 3.08 ERA and a 1.08 WHIP across 21 starts this season, with a strikeout rate near 10 per nine innings. His last outing was a loss to Arizona, but he threw eight shutout innings against Toronto earlier in August.
Where are the Red Sox and Marlins playing today?
The game is at loanDepot park in Miami, Florida, the Marlins’ home stadium. The retractable-roof ballpark has played as one of the most pitcher-friendly venues in the majors this season, with run scoring below the league average. It is the site of all three games in this Boston-Miami series.
Who won the last meeting between the Red Sox and Marlins?
Boston won the most recent meeting, a 4-2 victory over Miami on Monday, August 24, 2026. Anthony Seigler delivered a go-ahead RBI triple in the ninth inning, and Aroldis Chapman closed it out for his 30th save. It was the first game of the teams’ only series against each other in 2026.