Miami Marlins vs Washington Nationals: MLB Prediction, Pick & Odds — Aug 30, 2026

MIA

68-67

PregameSun, 12:15 PM EDTPeacock

WSH

64-73

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

1 signal · model + market

Recent form

4-6

WSH +0.6 vs MIA -0.8 margin

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

Nationals Park · Washington, District of Columbia

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

Janson Junk

SP · #26

6-8

W-L

4.21

ERA

1.30

WHIP

98.1

Last 3 starts

vsBOS-1.0 IP0 ER0 K

vsWSH-4.2 IP1 ER2 K

@PHIL(6-8)5.0 IP2 ER2 K

Home starter

Andrew Alvarez

SP · #54

2-6

W-L

3.72

ERA

1.35

WHIP

84.2

Last 3 starts

vsCOLL(2-6)4.2 IP3 ER6 K

@TEXL(2-5)5.0 IP1 ER5 K

@NYML(2-4)5.2 IP2 ER4 K

Vegas line

Lines post once a sportsbook releases them.

Model edge

Win prob49% / 51%

LeanTossup

ConfidenceTossup

Head to head

SeriesWSH leads series 1-0

TypeCurrent Series

Scouting report · pre-game

WSH vs MIA.

WSH is 4-6 recently; MIA is 4-6.

50.6%

model · WSH win prob

Recent form

WSH4–6+0.6
MIA4–6-0.8

Situational

WSH2d rest
MIA2d rest
+0.0d differential

Rest is even. WSH has 0 straight road games; MIA has 1.

Model angle

Weather and park remove about 0.1 runs from the total environment.

▼Weather + park-0.1pp

Players to watch

Cade CavalliWSH
6.4strikeouts · ±3.0
Cade Cavalli · 6.4 K · last-10 6.7 vs season 6.
Eury PerezMIA
6.2strikeouts · ±2.3
Eury Perez · 6.2 K · last-10 6.4 vs season 6.
Sandy AlcantaraMIA
5.1strikeouts · ±2.6
Sandy Alcantara · 5.1 K · last-10 5.3 vs season 4.9.

Head-to-head · 1-3 · last 4

WSH is 1-3 in the recent head-to-head sample.

2026-08-21WSH @ MIA2–3
2026-08-22WSH @ MIA2–4
2026-08-23WSH @ MIA2–6
2026-08-28MIA @ WSH2–9

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.

51.0%

ensemble · WSH favored

Elo Static
48.6%
P(WSH win)
33%
weight
Elo Pitching
49.2%
P(WSH win)
33%
weight
Bullpen Park
48.6%
P(WSH win)
34%
weight

Disagreement

0.28 pp

weighted σ across sub-models

Confidence

98% · high

maps from disagreement

Substrate count

3 / 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

WSH vs MIA.

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.

124

projections · 98 high confidence

Strikeouts

Cade CavalliWSH
6.4± 3.0high
Eury PerezMIA
6.2± 2.3high
Sandy AlcantaraMIA
5.1± 2.6high

Hits

Javier SanojaMIA
1.2± 1.1high
Otto LopezMIA
1.2± 0.7high
Daylen LileWSH
1.2± 1.3high

Total bases

Daylen LileWSH
2.1± 2.7high
Javier SanojaMIA
1.9± 1.9high
Heriberto HernandezMIA
1.8± 1.6high

RBIs

Daylen LileWSH
0.8± 1.6high
Javier SanojaMIA
0.7± 1.1high
Heriberto HernandezMIA
0.6± 0.5high

Earned runs

Jackson KentWSH
3.7± 1.6low
Jake IrvinWSH
3.1± 2.1medium
Andrew AlvarezWSH
2.0± 1.4high

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

Matchup · 2026

Team rate stats vs league

MLB Stats API

MIA

league avg

WSH

.725

OPS

.718

▶

.757

.326

OBP

.318

.325

4.33

Runs / G

4.50

▶

5.20

3.92

Team ERA

◀

4.16

4.67

1.25

WHIP

◀

1.30

1.39

8.4

K / 9

◀

8.5

7.8

The One modelTossup

Sun, Aug 30

MIA

Marlins

79-77

vs50.7%WSH

WSH★

Nationals

75-80

MIA 49.3%win prob50.7% WSH

WSH 1467 · MIA 1501Box score→

Team pages

Miami MarlinsWashington Nationals

Elsewhere in the MLB

Data via ESPN · MLB Stats API · Baseball Savant

Miami Marlins at Washington Nationals

The matchup, end-to-end.

WSH vs MIA.

3 sub-models, blended.

WSH vs MIA.

Team rate stats vs league