MLB matchup analysis

Red Sox vs Marlins Prediction, Odds and Model Pick

Wednesday, August 26, 2026 at loanDepot park · 6:40 PM ET

Official Pick

LyDia prediction: Boston Red Sox moneyline

Lab Rating
8.3/10
Model lean
Red Sox 70.7%
Market probability
58.8%
Model edge
+11.9%
Best moneyline
-154
Sportsbooks checked
9
LyDia model
70.7%
Market
58.8%

The case for Boston Red Sox

Starting pitcher edge: 16 points
LyDia gives Sonny Gray a 16-point edge over Ryan Gusto, driven mainly by expected innings (5.8 vs 4.0) and ERA (2.79 vs 4.37).
Late-inning bullpen advantage
Miami Marlins relievers have a 4.18 ERA over the last 7 days; Boston Red Sox relievers have a 1.57. If this is still close after six innings, that gap favors Boston Red Sox.
Bats are hot: +0.034 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.

What to watch

Own bullpen carries risk: 6.8/10
The Boston Red Sox bullpen comes in tired. A lead after six innings is less safe than usual.

Why the setup score is what it is

Conviction: 7.86/10
LyDia's win probability for Boston Red Sox (70.7%) is well clear of a coin flip -- this is a real, stated lean, not a guess.
Pitching plan: 24/30
Sonny Gray rates 16 points better than Ryan Gusto on LyDia's pitcher score. That is a real edge, and it earns most or all of the available credit here.
Bullpen: 7.77/10
Boston Red Sox's bullpen carries a real edge over Miami Marlins's tonight.
Offense: 42.98/50
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: 66.1%
Before any pitcher or bullpen adjustment, LyDia's team-strength model alone makes Boston Red Sox 66.1% to win. Everything below moves the price from this starting point.
Pitcher score gap: 16 points
The pitcher-score gap favors Boston Red Sox by 16 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: +0.093
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: 66.1% -> 70.7%
Team strength alone had Boston Red Sox at 66.1%. After the pitcher and bullpen terms, the price is 70.7% -- the same number shown as Model Lean above.
The verdict LyDia backs Boston Red Sox at -154. 70.7% to win against a market implying 58.8% - the model sees value and the setup clears every gate.
Read the full model output

Boston Red Sox is an official moneyline pick because it clears both gates: 70.7% model win probability and 8.3/10 Lab Rating. LyDia projects 70.7% against a 58.8% no-vig market number, a 11.9% model edge at -154. Boston Red Sox owns the starting pitcher edge by 16 points. Bullpen read: Supports LyDia side. Boston Red Sox's pen efficiency: Effective (6.6/10). Pitching plan: Ryan Gusto 4.0 IP + remaining bullpen 5.0 IP. Bullpen fatigue, efficiency, and combined risk grade only the innings assigned to the bullpen. Lineup check: Boston Red Sox is swinging a hot bat (+0.086 OPS); Miami Marlins is a touch below its season form (-0.042 OPS). Recent form supports this side and is included in the unified run projection.

Game information

MatchupBoston Red Sox at Miami Marlins
DateWednesday, August 26, 2026
First pitch6:40 PM ET
VenueloanDepot park
Starting pitchersSonny Gray vs Ryan Gusto
WeatherGame-time forecast: 78°F, 15% precipitation chance, 6 mph wind from SW. This venue has a roof, but the roof status is not confirmed.

Starting pitcher matchup

Full Pitcher Matchup Tool →
Sonny GrayRed Sox · RHP
vs
Ryan GustoMarlins · RHP
MetricRed SoxMarlins
Pitching planTraditional starterLimited starter
Expected innings5⅔4
ThrowsRR
LyDia pitcher score (higher is better)7559
ERA (lower is better)2.794.37
WHIP (lower is better)1.161.34
K/9 (higher is better)8.08.0
K-BB% (higher is better)15.5%14.1%
K% (higher is better)21.8%20.0%
BB% (lower is better)6.4%5.9%
BB/9 (lower is better)2.32.3
HR/9 (lower is better)1.01.2
Ground-ball rate50.0%47.2%
Fly-ball rate50.0%52.8%

Pitcher edge: LyDia gives Sonny Gray a 16-point edge over Ryan Gusto, driven mainly by expected innings (5.8 vs 4.0) and ERA (2.79 vs 4.37).

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 →

Sonny Gray strikeouts
5.0 LyDia projected Ks
No K play · -0.5K difference is below LyDia's 0.7K threshold
Market 5.5K · O -103 / U -120 · 4 books
Ryan Gusto strikeouts
3.7 LyDia projected Ks
No K play · +0.2K difference is below LyDia's 0.7K threshold
Market 3.5K · O -128 / U +107 · 4 books

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

Red Sox are 8-2 in their last 10 and averaging 5.4 runs per game over the last 15 days; Marlins are 5-5 in their last 10 and averaging 3.9 runs per game over the last 15 days. On the season Red Sox carry the better run differential per game (+0.80 against +0.11).

MetricRed SoxMarlins
Last 108-25-5
Last 10 by venue (away team on the road, home team at home)5-5 on the road7-3 at home
OPS, last 15 days0.8170.684
wOBA, last 15 days (hot/cold read)0.3570.308
Runs per game, last 15 days5.43.9
K% last 15 days (lower is better)17.8%22.6%

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
OPS0.818 (+0.087 vs szn)0.713 (-0.013 vs szn)
Runs per game5.79 (+1.240 vs szn)4.22 (-0.124 vs szn)
wOBA (model offense input)0.357 (+0.034 vs szn)0.319
K% (lower is better)18.9% (-2.4% vs szn)21.3%

Over the last 30 days the Red Sox have been the better offense, 0.357 wOBA to 0.319. They are running hot against their own season line (+0.034 wOBA).

Season profile

Full Stats page →
MetricRed SoxMarlins
Record73-5967-66
Run differential / game (team quality)+0.80+0.11
Runs scored / game (offense, season)4.554.35
Runs allowed / game (defense, season, lower better)3.754.23
Season OPS0.7310.726
K% season (lower is better)21.3%21.7%
OPS vs opposing hand (season)0.7180.736

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
6.8 Tired
Fatigue
7.6 Tired
Efficiency
6.6 Effective
Marlins
Combined risk
9.9 High risk
Fatigue
10.0 High risk
Efficiency
5.3 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
Fatigue7.6/10, Tired10.0/10, High risk
Efficiency6.6/10, Effective5.3/10, Average
Combined risk6.8/10, Tired9.9/10, High risk
Relief innings, last 7 days23.023.7
Back-to-back arms56
7-day ERA1.574.18
7-day WHIP1.301.10

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
6.2
Market total
7.5
Projected away runs
3.9
Projected home runs
2.0
Over price
-115
Under price
+101
Boston Red Sox team total
3.9 projected
Line 4.5 · O +105 / U -129
No team-total lean
Miami Marlins team total
2.0 projected
Line 3.5 · O +114 / U -135
Under research lean (-1.5)

The model projects 1.3 runs below the market total. A research lean still requires a setup rating of at least 7.0/10. Team totals remain research-only until their graded sample is established.

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