Pittsburgh Pirates vs St. Louis Cardinals: MLB Prediction, Pick & Odds — Aug 28, 2026

PIT

65-70

PregameFri, 8:15 PM EDTMLB.TV

STL

66-68

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

98 total idx

Busch Stadium run environment

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

Recent form

5-5

PIT -0.1 vs STL -2.2 margin

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

Busch Stadium · St. Louis, Missouri

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

Jared Jones

SP · #17

2-5

W-L

4.76

ERA

1.25

WHIP

68.0

Last 3 starts

@LAD-4.0 IP2 ER5 K

vsBOSL(2-5)5.0 IP1 ER7 K

vsNYML(2-4)3.0 IP8 ER3 K

Home starter

Quinn Mathews

SP · #60

0-2

W-L

6.43

ERA

1.79

WHIP

14.0

Last 3 starts

@PHIL(0-2)5.0 IP7 ER3 K

@CIN-4.0 IP1 ER7 K

@TORL(0-1)5.0 IP2 ER3 K

Vegas line

Lines post once a sportsbook releases them.

Model edge

Win prob42% / 58%

LeanHome · 8pp

ConfidenceEdge

Head to head

SeriesSeries tied 1-1

TypePreseason Series

Scouting report · pre-game

STL vs PIT.

STL has dropped 5 straight; PIT is 5-5 over its last 10.

58.2%

model · STL win prob

Recent form

STL3–7-2.2
PIT5–5-0.1

Situational

STL2d rest
PIT2d rest
+0.0d differential

Rest is even. STL has 0 straight road games; PIT has 6.

Model angle

Weather and park remove about 0.2 runs from the total environment.

▼Weather + park-0.2pp

Players to watch

Paul SkenesPIT
6.3strikeouts · ±2.2
Paul Skenes · 6.3 K · last-10 6.1 vs season 6.5.
Matthew LiberatoreSTL
5.8strikeouts · ±2.1
Matthew Liberatore · 5.8 K · last-10 6.2 vs season 5.1.
Braxton AshcraftPIT
5.7strikeouts · ±2.5
Braxton Ashcraft · 5.7 K · last-10 5.4 vs season 6.2.

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.

58.0%

ensemble · STL favored

Elo Static
54.0%
P(STL win)
34%
weight
Elo Pitching
52.0%
P(STL win)
33%
weight
Bullpen Park
54.3%
P(STL win)
34%
weight

Disagreement

1.02 pp

weighted σ across sub-models

Confidence

93% · 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

STL vs PIT.

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.

130

projections · 117 high confidence

Strikeouts

Paul SkenesPIT
6.3± 2.2high
Matthew LiberatoreSTL
5.8± 2.1high
Braxton AshcraftPIT
5.7± 2.5high

Hits

Alec BurlesonSTL
1.2± 0.4high
Jordan WalkerSTL
1.2± 0.9high
Nick GonzalesPIT
1.1± 0.9high

Total bases

Jordan WalkerSTL
2.2± 1.8high
Esmerlyn ValdezPIT
1.7± 1.6high
Oneil CruzPIT
1.7± 1.9high

RBIs

Oneil CruzPIT
0.8± 0.9high
Alec BurlesonSTL
0.8± 0.9high
Jordan WalkerSTL
0.8± 1.4high

Earned runs

Quinn MathewsSTL
3.3± 4.3low
Matthew LiberatoreSTL
3.0± 2.5high
Braxton AshcraftPIT
2.7± 2.2high

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

Matchup · 2026

Team rate stats vs league

MLB Stats API

PIT

league avg

STL

.733

OPS

◀

.719

.698

.329

OBP

◀

.318

.316

4.87

Runs / G

◀

4.50

4.43

4.22

Team ERA

4.16

4.24

1.32

WHIP

◀

1.30

1.34

9.3

K / 9

◀

8.5

7.8

The One modelEdge

Fri, Aug 28

PIT

Pirates

70-78

vs58.2%STL

STL★

Cardinals

78-73

PIT 41.8%win prob58.2% STL

STL 1490 · PIT 1486Box score→

Team pages

Pittsburgh PiratesSt. Louis Cardinals

Elsewhere in the MLB

Data via ESPN · MLB Stats API · Baseball Savant

Pittsburgh Pirates at St. Louis Cardinals

The matchup, end-to-end.

STL vs PIT.

3 sub-models, blended.

STL vs PIT.

Team rate stats vs league