MLB matchup analysis

Marlins vs Phillies Prediction, Odds and Model Pick

Wednesday, August 19, 2026 at Citizens Bank Park · 6:05 PM ET

Pass

LyDia decision: Pass on Marlins vs Phillies

Lab Rating
5.9/10
Model lean
Marlins 73.0%
Market probability
46.2%
Model edge
+26.8%
Best moneyline
+115
Sportsbooks checked
9
LyDia model
73.0%
Market
46.2%

The case for Miami Marlins

Starting pitcher edge: 17 points
LyDia gives Sandy Alcantara a 17-point edge over Aaron Nola, driven mainly by HR/9 (0.90 vs 2.08) and expected innings (6.6 vs 5.2).

The case for Philadelphia Phillies

Late-inning bullpen advantage
Miami Marlins relievers have a 6.58 ERA over the last 7 days; Philadelphia Phillies relievers have a 2.66. If this is still close after six innings, that gap favors Philadelphia Phillies.
Their bats are hot: +0.025 wOBA
Philadelphia Phillies is outhitting its own season form over the last 15 days.
Team strength favors Philadelphia Phillies
Before any pitcher or bullpen adjustment, LyDia's own team-strength model has Philadelphia Phillies ahead (54.6% to 45.4%). The pick still comes from Miami Marlins once the pitcher and bullpen terms are applied.

Why it is not official

Setup quality below the bar
Lab Rating is 5.9/10, under the 8.0/10 required for an official pick.
Own bullpen carries risk: 9.4/10
The Miami Marlins bullpen comes in high risk. A lead after six innings is less safe than usual.
Opponent is swinging it
The other lineup is +0.025 wOBA above its season form over the last 15 days.

Why the setup score is what it is

Conviction: 20/20
LyDia's win probability for Miami Marlins (73.0%) is well clear of a coin flip -- this is a real, stated lean, not a guess.
Pitching plan: 17/20
Sandy Alcantara rates 17 points better than Aaron Nola on LyDia's pitcher score. That is a real edge, and it earns most or all of the available credit here.
Bullpen: 7.43/20
LyDia does not see a meaningful bullpen edge for Miami Marlins here.
Offense: 14.33/40
Miami Marlins's recent form does not clearly outpace Philadelphia Phillies's.

Why the price is what it is

Team strength: 45.4%
Before any pitcher or bullpen adjustment, LyDia's team-strength model alone makes Miami Marlins 45.4% to win. Everything below moves the price from this starting point.
Pitcher score gap: 17 points
The pitcher-score gap favors Miami Marlins by 17 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: -0.057
The bullpen-fatigue gap between the two pens nudges the price toward Philadelphia Phillies. This moves the price less than the starting pitchers do, since a starter covers more of the game than the bullpen.
Net effect: 45.4% -> 73.0%
Team strength alone had Miami Marlins at 45.4%. After the pitcher and bullpen terms, the price is 73.0% -- 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

MatchupMiami Marlins at Philadelphia Phillies
DateWednesday, August 19, 2026
First pitch6:05 PM ET
VenueCitizens Bank Park
Starting pitchersSandy Alcantara vs Aaron Nola
WeatherGame-time forecast: 86°F, 1% precipitation chance, 7 mph wind from W.

Starting pitcher matchup

Full Pitcher Matchup Tool →
Sandy AlcantaraMarlins · RHP
vs
Aaron NolaPhillies · RHP
MetricMarlinsPhillies
Pitching planTraditional starterTraditional starter
Expected innings6⅔5⅓
ThrowsRR
LyDia pitcher score (higher is better)7053
ERA (lower is better)3.435.33
WHIP (lower is better)1.171.45
K/9 (higher is better)6.99.6
K-BB% (higher is better)12.0%16.2%
K% (higher is better)18.5%24.3%
BB% (lower is better)6.6%8.1%
BB/9 (lower is better)2.43.2
HR/9 (lower is better)0.92.1
Ground-ball rate48.4%46.0%
Fly-ball rate51.6%54.0%

Pitcher edge: LyDia gives Sandy Alcantara a 17-point edge over Aaron Nola, driven mainly by HR/9 (0.90 vs 2.08) and expected innings (6.6 vs 5.2).

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 →

Sandy Alcantara strikeouts
3.8 LyDia projected Ks
No K play · -0.7K difference is below LyDia's 0.7K threshold
Market 4.5K · O +126 / U -145 · 5 books
Aaron Nola strikeouts
5.9 LyDia projected Ks
No K play · +0.4K difference is below LyDia's 0.7K threshold
Market 5.5K · O -115 / U +102 · 5 books

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

Marlins are 6-4 in their last 10 and averaging 4.5 runs per game over the last 15 days; Phillies are 7-3 in their last 10, averaging 5.3 runs per game over the last 15 days, and swinging above their season form. Season run differential separates them by almost nothing (+0.13 against +0.09).

MetricMarlinsPhillies
Last 106-47-3
Last 10 by venue (away team on the road, home team at home)4-6 on the road7-3 at home
OPS, last 15 days0.7110.768
wOBA, last 15 days (hot/cold read)0.3190.339
Runs per game, last 15 days4.55.3
K% last 15 days (lower is better)22.0%15.6%

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 daysMarlinsPhillies
OPS0.710 (-0.020 vs szn)0.754 (+0.041 vs szn)
Runs per game4.15 (-0.253 vs szn)5.11 (+0.623 vs szn)
wOBA (model offense input)0.3170.331 (+0.017 vs szn)
K% (lower is better)22.3% (+0.6% vs szn)18.8% (-3.9% vs szn)

Over the last 30 days the Phillies have been the better offense, 0.331 wOBA to 0.317. They are running hot against their own season line (+0.017 wOBA).

Season profile

Full Stats page →
MetricMarlinsPhillies
Record64-6369-58
Run differential / game (team quality)+0.13+0.09
Runs scored / game (offense, season)4.404.49
Runs allowed / game (defense, season, lower better)4.274.39
Season OPS0.7300.713
K% season (lower is better)21.7%22.6%
OPS vs opposing hand (season)0.7390.720

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. Marlins and Phillies are highlighted.

Marlins
Combined risk
9.4 High risk
Fatigue
8.3 High risk
Efficiency
2.9 Struggling
Phillies
Combined risk
7.5 Tired
Fatigue
8.0 Tired
Efficiency
6.0 Effective

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.

MetricMarlinsPhillies
Fatigue8.3/10, High risk8.0/10, Tired
Efficiency2.9/10, Struggling6.0/10, Effective
Combined risk9.4/10, High risk7.5/10, Tired
Relief innings, last 7 days26.020.3
Back-to-back arms48
7-day ERA6.582.66
7-day WHIP1.731.28

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
9.2
Market total
9.0
Projected away runs
3.1
Projected home runs
6.1
Over price
+105
Under price
-109
Miami Marlins team total
3.1 projected
Line 3.5 · O -141 / U +112
No team-total lean
Philadelphia Phillies team total
6.1 projected
Line 4.5 · O +110 / U -125
Over research lean (+1.6)

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

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