bayesRatings

Cardinals at Reds

MLB · Thursday, Aug 20 · 11:40 AM CT · Great American Ball Park · Final STL 10 – CIN 9

Final Box Score

from the game summary
Team123456789THE
STL1030000061080
CIN000005004972
Team box
STL·CIN
8
hits
7
1
home runs
1
6
walks
8
6
strikeouts
9
180
pitches thrown
161
0
errors
2
Top hitters
PlayerTeamH-ABRHRRBI
Matt McLainCIN1-4214
Jordan WalkerSTL1-4214
Jose FerminSTL2-2102
Sal StewartCIN1-4102
Eugenio SuarezCIN1-1101
JJ BledayCIN1-3101
Pitchers
PitcherTeamIPHERBBK
Michael McGreevySTL5.13324
Peter Strzelecki (W)STL2.00011
Riley O'Brien (S)STL0.11020
Brady SingerCIN6.05413
Brock Burke (L)CIN0.22031

For context, not in our forecast.

Game Flow

score margin
CIN +5
STL +5
123456789
largest lead: CIN 1 · STL 5lead changes: 2

For context, not in our forecast.

Final · our forecast was STL 50%, CIN 50% · Updated Aug 20

Expected margin
Even
Expected score
STL 4.3 – 4.1 CIN
Expected total
8.4
CardinalsThe matchupReds
−102Our fair odds+102
4.3Expected runs4.1
+0.01Power rating−0.08
4.4Runs / game4.0
4.3Allowed / game4.7
8.1Hits / game7.5
1.03Home runs / game1.29
3.3Walks drawn / game3.5
65−63Season record61−66
6−4Last 105−5

Prediction markets

Kalshi · Polymarket US · ProphetX · Novig
STL chance · CIN chance
Our model fair50.5%49.5%
Kalshi53.7%51.7%
Polymarket USno two-sided price
ProphetXno two-sided price
Novigno two-sided price
Full price table
TeamOur modelfairKalshipre-game · 11:40 AM CTPolymarket US ProphetX Novig 
Moneyline
STLSt. Louis Cardinals−10250%−11653.7%———
CINCincinnati Reds+10250%−10751.8%———
Spreadabout even
STLSt. Louis Cardinals−0.2our margin————
CINCincinnati Reds+0.2our margin————
Totalwe expect 8.4
Over8.4our total————
Under8.4our total————

These are each venue’s last prices before the start (Kalshi’s moneyline: its pre-game close). Odds are the price to buy that side now, taker fee included; the small percent is the implied chance of that same price. Highlighted is the best price in the row among venues on the same line. — means not listed (hover or tap for why). A market price is not the true chance of winning.

Margin range

Even game expected
St. Louis Cardinals by 12 runs: <1%St. Louis Cardinals by 11 runs: <1%St. Louis Cardinals by 10 runs: 1%St. Louis Cardinals by 9 runs: 1%St. Louis Cardinals by 8 runs: 1%St. Louis Cardinals by 7 runs: 2%St. Louis Cardinals by 6 runs: 3%St. Louis Cardinals by 5 runs: 4%St. Louis Cardinals by 4 runs: 6%St. Louis Cardinals by 3 runs: 7%St. Louis Cardinals by 2 runs: 10%St. Louis Cardinals by 1 run: 13%Cincinnati Reds by 1 run: 16%Cincinnati Reds by 2 runs: 10%Cincinnati Reds by 3 runs: 7%Cincinnati Reds by 4 runs: 5%Cincinnati Reds by 5 runs: 4%Cincinnati Reds by 6 runs: 3%Cincinnati Reds by 7 runs: 2%Cincinnati Reds by 8 runs: 1%Cincinnati Reds by 9 runs: 1%Cincinnati Reds by 10 runs: 1%Cincinnati Reds by 11 runs: <1%Cincinnati Reds by 12 runs: <1%
← STL wins byCIN wins by →
St. Louis Cardinals wins by 2 or more37%
St. Louis Cardinals wins by 3 or more27%
Cincinnati Reds wins by 2 or more33%
Decided by one run29%

Centered on the expected margin above; shape from each team's expected runs, with ties after nine settled as one-run games, matched to 14,698 past MLB games.

Total range

8.4 expected
1 runs: 2%2 runs: 2%3 runs: 7%4 runs: 5%5 runs: 11%6 runs: 8%7 runs: 12%8 runs: 8%9 runs: 10%10 runs: 6%11 runs: 7%12 runs: 4%13 runs: 5%14 runs: 3%15 runs: 3%16 runs: 2%17 runs: 1%18 runs: 1%19 runs: 1%20 runs: <1%21 runs: <1%22 runs: <1%
Total runs, both teams
Total over 6.565%
Total over 8.545%
Total over 10.528%
Total from 7 to 1037%

Centered on the expected total above; shape from each team's expected runs, with ties after nine settled as one-run games, matched to 14,698 past MLB games.

Starting Pitchers

from the box score
STLMichael McGreevy SP · last 3 starts: 16.0 IP, 2.81 ERA, 15 Kstarted
CINBrady Singer SP · last 3 starts: 18.0 IP, 4.50 ERA, 13 Kstarted

Starting pitchers are part of our forecast.

Rest and Schedule

before this game
STL·CIN
Aug 19 at CIN
last game
Aug 19 vs STL
0 days
days of rest
0 days
7
games in last 7 days
8
8th straight road game
home / road
8th straight home game

For context, not in our forecast.

Team Comparison

2026 season · box-score averages from 127+ games
STL·CIN
+0.01
rating (0 = average)
−0.08
4.4
runs / game
4.0
4.3
runs allowed / game
4.7
65−63
season record
61−66
32−34
home record
32−35
33−29
away record
29−31
L1
streak
W1
6−4
last 10
5−5
8.1
hits / game
7.5
1.03
home runs / game
1.29
3.3
walks drawn / game
3.5
7.8
batter strikeouts / game
9.5
7.7
pitcher strikeouts / game
8.1
0.43
errors / game
0.54

Rating Trend

STL · CIN · 145 days
St. Louis CardinalsCincinnati Reds
Rating (0 = average team)

Head to Head

last 10 meetings · CIN 4−6
Aug 19at CINCIN 5 − 4
Aug 18at CINSTL 3 − 0
Aug 17at CINCIN 6 − 5
Aug 17at CINSTL 2 − 1
Jul 26at STLCIN 5 − 3
Jul 25at STLSTL 7 − 0
Jul 24at STLCIN 4 − 2
Jun 7at STLSTL 5 − 3
Jun 6at STLSTL 6 − 5
Jun 5at STLSTL 10 − 3

STL · Last 10

6−4 · streak L1
Aug 19at CIN4 − 5L
Aug 18at CIN3 − 0W
Aug 17at CIN5 − 6L
Aug 17at CIN2 − 1W
Aug 16at CHC11 − 4W
Aug 15at CHC8 − 4W
Aug 14at CHC0 − 3L
Aug 12vs PHI7 − 1W
Aug 11vs PHI2 − 0W
Aug 10vs PHI5 − 6L

CIN · Last 10

5−5 · streak W1
Aug 19vs STL5 − 4W
Aug 18vs STL0 − 3L
Aug 17vs STL6 − 5W
Aug 17vs STL1 − 2L
Aug 16vs MIA1 − 7L
Aug 15vs MIA4 − 8L
Aug 14vs MIA1 − 0W
Aug 13at CHW9 − 8W
Aug 12at CHW0 − 5L
Aug 11at CHW5 − 4W