Washington Nationals vs Miami Marlins: MLB Prediction, Pick & Odds — Aug 21, 2026

WSH

61-67

PregameFri, 7:10 PM EDTMLB.TV

MIA

64-64

Verdict

Pass · no edge tonight.

The model doesn't see daylight against the posted line on this game. We don't surface negative-EV picks; check the drill-down for sub-model context.

Why this matchup

2 signals · model + market

Park factor

96 total idx

LoanDepot Park run environment

Park factor boosts run scoring, so contact quality matters more tonight here.

Recent form

5-5

MIA +0.8 vs WSH +0.7 margin

MIA brings the hotter last-ten margin into this matchup tonight with balance.

loanDepot park · Miami, Florida

Drill down

Sub-model tables · ensemble breakdown · last meeting · book shop · player props

Pregame · scouting report

The matchup, end-to-end.

Probable starters, projected lineups, head-to-head this season, our model edge against the market — every angle on one surface.

Away starter

TBD

Probable starter not yet announced. ESPN typically posts the card 12–24 hours before first pitch.

Home starter

Ryan Gusto

SP · #65

0-3

W-L

4.70

ERA

1.32

WHIP

53.2

Last 3 starts

@CIN-4.2 IP2 ER6 K

vsLAA-4.0 IP2 ER4 K

@ATLL(0-3)6.0 IP1 ER5 K

Vegas line

Lines post once a sportsbook releases them.

Model edge

Win prob43% / 57%

LeanHome · 7pp

ConfidenceLean

Head to head

SeriesMIA wins series 3-2

TypePreseason Series

Scouting report · pre-game

MIA vs WSH.

MIA has dropped 3 straight; WSH is 4-6 over its last 10.

57.1%

model · MIA win prob

Recent form

MIA5–5+0.8
WSH4–6+0.7

Situational

MIA2d rest
WSH2d rest
+0.0d differential

Rest is even. MIA has 6 straight road games; WSH has 5.

Model angle

Weather and park remove about 0.3 runs from the total environment.

▼Weather + park-0.3pp

Players to watch

Cade CavalliWSH
6.5strikeouts · ±3.4
Cade Cavalli · 6.5 K · last-10 6.9 vs season 5.8.
Eury PerezMIA
6.1strikeouts · ±2.8
Eury Perez · 6.1 K · last-10 6.1 vs season 6.
Sandy AlcantaraMIA
5.2strikeouts · ±2.3
Sandy Alcantara · 5.2 K · last-10 5.3 vs season 5.

Aggregated from r107 anatomy · r109 CLV history · r112 calibration · r118 line moves · r124 player projections · refreshes every 5 minutes

Model ensemble · how the prediction is built

3 sub-models, blended.

Each sub-model uses a different rating substrate. Bayesian model averaging weights them by rolling Brier score so the ensemble inherits each model's strengths. Disagreement flags games where the sub-models don't see eye-to-eye — lower confidence, wider band.

57.0%

ensemble · MIA favored

Elo Static
56.0%
P(MIA win)
44%
weight
Elo Pitching
fallback · inputs missing
56.0%
P(MIA win)
11%
weight
Bullpen Park
55.8%
P(MIA win)
45%
weight

Disagreement

0.10 pp

weighted σ across sub-models

Confidence

99% · high

maps from disagreement

Substrate count

2 / 3 active

ones with full inputs tonight

Weights recalibrated nightly on a 90-day rolling window with strict point-in-time correctness — no model gets credit for a game it hasn't seen. Headline % is Platt-scaled per league; sub-model rows show raw BMA inputs.

Player projections

MIA vs WSH.

Per-player stat projections built from a recency-weighted blend of the last ten games, season average, and matchup context. Confidence reflects sample size and stability — the top of each list is who to watch.

126

projections · 96 high confidence

Strikeouts

Cade CavalliWSH
6.5± 3.4high
Eury PerezMIA
6.1± 2.8high
Sandy AlcantaraMIA
5.2± 2.3high

Hits

Xavier EdwardsMIA
1.1± 0.7high
Keibert RuizWSH
1.1± 1.0high
Griffin ConineMIA
1.0± 0.8high

Total bases

Griffin ConineMIA
2.1± 2.8high
Abimelec OrtizWSH
2.0± 2.5medium
CJ AbramsWSH
1.6± 1.5high

RBIs

Griffin ConineMIA
0.8± 0.9high
Heriberto HernandezMIA
0.7± 1.0high
Javier SanojaMIA
0.7± 1.3high

Earned runs

Jake IrvinWSH
3.0± 2.2medium
Janson JunkMIA
2.7± 3.4medium
Sandy AlcantaraMIA
2.0± 1.9high

Projections recompute every 30 minutes · prop lines plug in once sportsbook ingest lands

Matchup · 2026

Team rate stats vs league

MLB Stats API

WSH

league avg

MIA

.763

OPS

◀

.719

.728

.326

OBP

.318

.326

5.28

Runs / G

◀

4.50

4.38

4.69

Team ERA

4.17

▶

3.96

1.39

WHIP

1.30

▶

1.25

7.8

K / 9

8.5

▶

8.5

The One modelLean

Fri, Aug 21

WSH

Nationals

72-74

vs57.1%MIA

MIA★

Marlins

75-74

WSH 42.9%win prob57.1% MIA

MIA 1498 · WSH 1480Box score→

Team pages

Washington NationalsMiami Marlins

Elsewhere in the MLB

Data via ESPN · MLB Stats API · Baseball Savant

Washington Nationals at Miami Marlins

The matchup, end-to-end.

MIA vs WSH.

3 sub-models, blended.

MIA vs WSH.

Team rate stats vs league