WASHINGTON

NATIONALSWSH

73-83  |  Road

3
FINAL
Sun, Sep 20 • 2:15 PM ET
Busch Stadium
View Odds Details →

ST. LOUIS

CARDINALSSTL

76-80  |  Home

5
Probable Pitchers
Jake Irvin
STARTING PITCHER

Jake Irvin

#27 | SP
@
Quinn Mathews
STARTING PITCHER

Quinn Mathews

#60 | SP
Player W-L ERA WHIP IP K
Jake Irvin 2-9 5.51 1.41 96.1 96
Quinn Mathews 2-3 3.62 1.39 37.1 36
2-9 W-L 2-3
5.51 ERA Ldr 3.62
1.41 WHIP Ldr 1.39
96.1 Ldr IP (Innings Pitched) 37.1
96 Ldr K (Strikeouts) 36
AI Model Win Probability
NATIONALS
34%
📊
CARDINALS
66%
▲ Edge: +9.70% (STL)
NATIONALS 48% Book Odds: +108
CARDINALS 57% Book Odds: -131
Book Implied: 48.10% / 56.70%
AI Model Projected Total
AI Projection
9.0
Projected
Book Total
8.5
Over / Under Line
▲ Edge: +0.5 (Over)
Over 8.5 55%
Under 8.5 45%
AI Model Spread Expectation
AI Spread Proj
+1.4
WASHINGTON
Book Spread
+1.5
Book Line
▲ Edge: +0.1 points (Washington)
NationalsWSH (+1.5) 0 CardinalsSTL (-1.5)
Washington Nationals (+1.5) expected to cover
Spread Distribution
AI Model

Nationals Cover

63.7%

Cardinals Cover

36.3%

+12+8+40-4-8-12
Distribution centered around WSH +1.4 expected margin.
Margin of Victory (WSH)

WSH By 1-2 runs

15.3%

WSH By 3-4 runs

9.5%

STL By 1-2 runs

19.7%

STL By 3-4 runs

17.2%

AI Model Projected Score
3.8
WASHINGTON
Book Implied: 3.50
5.2
ST. LOUIS
Book Implied: 5
Simulated Score
5
WASHINGTON
Book Implied: 3.50
4
ST. LOUIS
Book Implied: 5
Projections Grades
Moneyline (ML)
Divergence 👑 Top Selection
AI Cardinals Win
66% Win Prob
A
Sim Nationals Loss
61% Win Prob
B
Run Line (ATS)
Agreement
AI Nationals (+1.5) Loss
Proj Runs: +1.4
D
Sim Nationals (+1.5) Loss
Proj Runs: -1.0
A
Over/Under (Total)
Agreement
AI o8.5 Loss
Proj Total: 9.0
D
Sim o8.5 Loss
Proj Total: 9.0
D
Head-to-Head History
Date Game Score
Sep 20, 2026 WSH @ STL 3 - 5
Sep 19, 2026 WSH @ STL 8 - 5
Sep 18, 2026 WSH @ STL 9 - 1
Apr 8, 2026 STL @ WSH 6 - 1
Apr 7, 2026 STL @ WSH 7 - 6
Season Statistics Comparison
Washington WSH
vs
St. Louis STL
159
Games Played
159
5.08 ▲
Runs / Game
4.47
.246 ▲
Avg (AVG)
.241
.321 ▲
On-Base (OBP)
.314
.423 ▲
Slugging (SLG)
.379
.744 ▲
OPS
.694
207 ▲
Home Runs
162
Key Model Drivers
Errors (L5) +27.2% more
St. Louis: 1.9 vs Washington: 1.5
Strikeouts (L5) +25.8% more
St. Louis: 10.2 vs Washington: 8.1
Home Runs (L5) +66.0% more
Washington: 0.8 vs St. Louis: 0.2
Walks (L5) +32.5% more
Washington: 4.1 vs St. Louis: 2.8
Post-Mortem Analysis
Metric Projected Actual
Score Game
WSH Score 3.8 3
STL Score 5.2 5
Team Stats Splits (Home / Away)
Errors 1.9 / 1.5 0.0 / 1.0
Hits 9.0 / 8.9 6.0 / 7.0
Home Runs 0.2 / 0.8 3.0 / 1.0
Strikeouts 10.2 / 8.1 8.0 / 5.0
Total Bases 11.0 / 13.7 16.0 / 11.0
Walks 2.8 / 4.1 2.0 / 2.0
Public Market Splits
Moneyline
Open: +109 / -132 → +108 / -131
30%TICKETS70%
34%MONEY66%
Spread (ATS)
Open: +1.5 / -1.5 → +1.5 / -1.5
19%TICKETS81%
13%MONEY87%
Total (O/U)
Open: 8.5 → 8.5
98%TICKETS2%
98%MONEY2%
Situational Trends
📊 Win-Loss
WSH
75-84-0 (47.2%)
Margin: 0.1 ATS +/-:
STL Advantage
77-82-0 (48.4%)
Margin: -0.1 ATS +/-:
🎯 ATS (Spread)
WSH Advantage
(56.0%)
Margin: 0.1 ATS +/-:
STL
(54.1%)
Margin: -0.1 ATS +/-:
⚖️ Over/Under
WSH
83-68-8
O: 55.0% / U: 45.0% Total +/-: +1.2
STL
72-79-8
O: 47.7% / U: 52.3% Total +/-: +0.6