MLB matchup analysis

Red Sox vs Marlins Prediction, Odds and Model Pick

Monday, August 24, 2026 at loanDepot park · 6:40 PM ET

Pass

LyDia decision: Pass on Red Sox vs Marlins

Lab Rating
5.7/10
Model lean
Red Sox 51.7%
Market probability
53.6%
Model edge
-1.9%
Best moneyline
-119
Sportsbooks checked
9
LyDia model
51.7%
Market
53.6%

The case for Boston Red Sox

Late-inning bullpen advantage
Miami Marlins relievers have a 4.44 ERA over the last 7 days; Boston Red Sox relievers have a 1.38. If this is still close after six innings, that gap favors Boston Red Sox.
Bats are hot: +0.025 wOBA
Boston Red Sox is outhitting its own season form over the last 15 days. Recent form is context, not a model input, but it points the same way here.

The case for Miami Marlins

The case is thin
The model finds little going Miami Marlins's way — it trails on the pitching plan, bullpen, and recent form. The main path to a Miami Marlins win is variance.

Why it is not official

Below the 61.0% official gate
Win probability is 51.7%. LyDia does not make a game official below 61.0%, no matter how good the price is. This is a value spot, not a high-confidence winner.
Setup quality below the bar
Lab Rating is 5.7/10, under the 7.2/10 required for an official pick.

Why the setup score is what it is

Conviction: 0/10
LyDia's own win probability for Boston Red Sox (51.7%) is close enough to a coin flip that the rating credits little or no conviction -- credit only starts above 55%.
Pitching plan: 0/20
No meaningful starting-pitcher edge favors Boston Red Sox in this matchup.
Bullpen: 19.62/20
Boston Red Sox's bullpen carries a real edge over Miami Marlins's tonight.
Offense: 37.52/50
Boston Red Sox's recent offensive form clearly outpaces Miami Marlins's over the tracked windows.

Why the price is what it is

Team strength: 63.1%
Before any pitcher or bullpen adjustment, LyDia's team-strength model alone makes Boston Red Sox 63.1% to win. Everything below moves the price from this starting point.
Pitcher score gap: 1 points
The pitcher-score gap favors Boston Red Sox by 1 points. This is the biggest single mover of the price -- a large gap moves it a lot, a small gap barely moves it.
Bullpen adjustment: +0.141
The bullpen-fatigue gap between the two pens nudges the price toward Boston Red Sox. This moves the price less than the starting pitchers do, since a starter covers more of the game than the bullpen.
Net effect: 63.1% -> 51.7%
Team strength alone had Boston Red Sox at 63.1%. After the pitcher and bullpen terms, the price is 51.7% -- the same number shown as Model Lean above.
The verdict LyDia passes. The combined Lab Rating did not clear the official threshold.
Read the full model output

The combined Lab Rating did not clear the official threshold.

Game information

MatchupBoston Red Sox at Miami Marlins
DateMonday, August 24, 2026
First pitch6:40 PM ET
VenueloanDepot park
Starting pitchersRanger Suarez vs Sandy Alcantara
WeatherGame-time forecast: 85°F, 2% precipitation chance, 7 mph wind from SE. This venue has a roof, but the roof status is not confirmed.

Starting pitcher matchup

Full Pitcher Matchup Tool →
Ranger SuarezRed Sox · LHP
vs
Sandy AlcantaraMarlins · RHP
MetricRed SoxMarlins
Pitching planTraditional starterTraditional starter
Expected innings56⅔
ThrowsLR
LyDia pitcher score (higher is better)7170
ERA (lower is better)3.413.46
WHIP (lower is better)1.181.18
K/9 (higher is better)9.06.7
K-BB% (higher is better)17.1%11.5%
K% (higher is better)24.2%18.0%
BB% (lower is better)7.1%6.5%
BB/9 (lower is better)2.62.4
HR/9 (lower is better)0.60.9
Ground-ball rate48.6%47.4%
Fly-ball rate51.4%52.6%

Pitcher edge: LyDia gives Ranger Suarez a 1-point edge over Sandy Alcantara, driven mainly by K/9 (9.0 vs 6.7) and K-BB% (17.1% vs 11.5%).

How to read this: the scorecards above name the starters; every number lives in this table. Highlighted cells mark a gap big enough to matter. K% and BB% are strikeout and walk rate as a share of batters faced -- K-BB% is the two combined into one skill number. HR/9 is home runs allowed per nine innings. Ground-ball and fly-ball rate are neither good nor bad on their own: high ground-ball pitchers trade strikeouts for double plays and fewer home runs, and on this data source the two rates are complementary (they add to 100%), not independent reads.

Strikeout Projections Full strikeout projections →

Ranger Suarez strikeouts
4.3 LyDia projected Ks
No K play · -0.2K difference is below LyDia's 0.7K threshold
Market 4.5K · O -135 / U +110 · 6 books
Sandy Alcantara strikeouts
4.0 LyDia projected Ks
No K play · -0.5K difference is below LyDia's 0.7K threshold
Market 4.5K · O +102 / U -125 · 6 books

Same data source as the Pitcher Matchup Tool, where every starter on the slate is compared side by side.

Red Sox are 7-3 in their last 10, averaging 4.9 runs per game over the last 15 days, and swinging above their season form; Marlins are 5-5 in their last 10 and averaging 4.7 runs per game over the last 15 days. On the season Red Sox carry the better run differential per game (+0.76 against +0.16).

MetricRed SoxMarlins
Last 107-35-5
Last 10 by venue (away team on the road, home team at home)5-5 on the road8-2 at home
OPS, last 15 days0.7910.724
wOBA, last 15 days (hot/cold read)0.3470.324
Runs per game, last 15 days4.94.7
K% last 15 days (lower is better)17.2%23.2%

Last 15 days only. Hot and cold streaks for all 30 teams live on the Stats page.

30-day offense

Full offense tool →
Last 30 daysRed SoxMarlins
OPS0.808 (+0.077 vs szn)0.708 (-0.020 vs szn)
Runs per game5.61 (+1.076 vs szn)4.22 (-0.152 vs szn)
wOBA (model offense input)0.353 (+0.030 vs szn)0.317
K% (lower is better)19.5% (-1.8% vs szn)21.3%

Over the last 30 days the Red Sox have been the better offense, 0.353 wOBA to 0.317. They are running hot against their own season line (+0.030 wOBA).

Season profile

Full Stats page →
MetricRed SoxMarlins
Record71-5967-64
Run differential / game (team quality)+0.76+0.16
Runs scored / game (offense, season)4.534.37
Runs allowed / game (defense, season, lower better)3.774.21
Season OPS0.7310.728
K% season (lower is better)21.3%21.7%
OPS vs opposing hand (season)0.7180.704

Season-long team quality, not recent form. Run differential and run environment come from the season standings; splits for all 30 teams live on the Stats page, including the run environment table.

Every team on today's slate, on any two axes you pick. Red Sox and Marlins are highlighted.

Red Sox
Combined risk
4.3 Normal
Fatigue
5.3 Normal
Efficiency
7.1 Effective
Marlins
Combined risk
9.0 High risk
Fatigue
8.9 High risk
Efficiency
4.8 Average

Risk is what the model actually uses: fatigue blended with how well the pen has pitched. High fatigue with high efficiency is a tired pen that is still getting outs.

MetricRed SoxMarlins
Fatigue5.3/10, Normal8.9/10, High risk
Efficiency7.1/10, Effective4.8/10, Average
Combined risk4.3/10, Normal9.0/10, High risk
Relief innings, last 7 days26.026.3
Back-to-back arms55
7-day ERA1.384.44
7-day WHIP1.041.37

Fatigue measures workload. Efficiency measures recent run prevention. Combined risk is what the moneyline and totals systems use.

Run total projection

Full Totals Projections →
LyDia projection
7.3
Market total
7.0
Projected away runs
5.2
Projected home runs
1.6
Over price
-116
Under price
+105
Boston Red Sox team total
5.2 projected
Line 3.5 · O -122 / U +110
Over research lean (+1.7)
Miami Marlins team total
1.6 projected
Line 3.5 · O +118 / U -130
Under research lean (-1.9)

The model and market are close. Team totals remain research-only until their graded sample is established.

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