bayesRatings

White Sox at Cubs

MLB · Tuesday, Aug 18 · 7:05 PM CT · Wrigley Field · Final CHW 3 – CHC 4

Final Box Score

from the game summary
Team123456789THE
CHW0111000003100
CHC200000101481
Team box
CHW·CHC
10
hits
8
1
home runs
2
3
walks
5
7
strikeouts
9
152
pitches thrown
151
0
errors
1
Top hitters
PlayerTeamH-ABRHRRBI
Alex BregmanCHC2-5002
Michael BuschCHC1-3111
Pete Crow-ArmstrongCHC1-3111
Munetaka MurakamiCHW1-4111
Colson MontgomeryCHW3-4100
Tristan PetersCHW2-4001
Pitchers
PitcherTeamIPHERBBK
Bryan HudsonCHW1.02201
Trevor Richards (L)CHW1.22111
Kevin GausmanCHC4.17325
Jacob Webb (W)CHC1.00010

For context, not in our forecast.

Game Flow

score margin
CHC +3
CHW +3
123456789
largest lead: CHC 2 · CHW 1lead changes: 2

For context, not in our forecast.

Final · our forecast was CHW 42%, CHC 58% · Updated Aug 18

Expected margin
CHC by 0.6
Expected score
CHC 5.0 – 4.4 CHW
Expected total
9.4
White SoxThe matchupCubs
+136Our fair odds−136
4.4Expected runs5.0
−0.01Power rating+0.24
4.8Runs / game5.2
4.5Allowed / game4.4
8.0Hits / game8.6
1.34Home runs / game1.29
3.5Walks drawn / game4.3
65−59Season record73−53
6−4Last 106−4

Prediction markets

Kalshi · Polymarket US · ProphetX · Novig
CHW chance · CHC chance
Our model fair42.4%57.6%
Kalshi40.7%63.6%
Polymarket USno two-sided price
ProphetXno two-sided price
Novigno two-sided price
Full price table
TeamOur modelfairKalshipre-game · 7:05 PM CTPolymarket US ProphetX Novig 
Moneyline
CHWChicago White Sox+13642%+14640.7%———
CHCChicago Cubs−13658%−17563.6%———
SpreadCHC by 0.6
CHWChicago White Sox+0.6our margin————
CHCChicago Cubs−0.6our margin————
Totalwe expect 9.4
Over9.4our total————
Under9.4our 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

Chicago Cubs by 0.6 expected
Chicago White Sox by 14 runs: <1%Chicago White Sox by 13 runs: <1%Chicago White Sox by 12 runs: <1%Chicago White Sox by 11 runs: <1%Chicago White Sox by 10 runs: 1%Chicago White Sox by 9 runs: 1%Chicago White Sox by 8 runs: 1%Chicago White Sox by 7 runs: 2%Chicago White Sox by 6 runs: 3%Chicago White Sox by 5 runs: 4%Chicago White Sox by 4 runs: 5%Chicago White Sox by 3 runs: 6%Chicago White Sox by 2 runs: 9%Chicago White Sox by 1 run: 10%Chicago Cubs by 1 run: 17%Chicago Cubs by 2 runs: 10%Chicago Cubs by 3 runs: 7%Chicago Cubs by 4 runs: 6%Chicago Cubs by 5 runs: 5%Chicago Cubs by 6 runs: 4%Chicago Cubs by 7 runs: 3%Chicago Cubs by 8 runs: 2%Chicago Cubs by 9 runs: 1%Chicago Cubs by 10 runs: 1%Chicago Cubs by 11 runs: 1%Chicago Cubs by 12 runs: <1%Chicago Cubs by 13 runs: <1%Chicago Cubs by 14 runs: <1%
← CHW wins byCHC wins by →
Chicago Cubs wins by 2 or more41%
Chicago Cubs wins by 3 or more31%
Chicago White Sox wins by 2 or more32%
Decided by one run27%

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

9.4 expected
1 runs: 1%2 runs: 1%3 runs: 5%4 runs: 4%5 runs: 9%6 runs: 7%7 runs: 11%8 runs: 7%9 runs: 10%10 runs: 7%11 runs: 8%12 runs: 5%13 runs: 6%14 runs: 4%15 runs: 4%16 runs: 2%17 runs: 2%18 runs: 1%19 runs: 1%20 runs: 1%21 runs: 1%22 runs: <1%23 runs: <1%24 runs: <1%25 runs: <1%
Total runs, both teams
Total over 7.561%
Total over 9.543%
Total over 11.528%
Total from 8 to 1133%

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
CHWBryan Hudson RP · last 3 starts: 3.2 IP, 2.45 ERA, 2 Kstarted
CHCKevin Gausman SP · last 3 starts: 17.1 IP, 4.67 ERA, 15 Kstarted

Starting pitchers are part of our forecast.

Rest and Schedule

before this game
CHW·CHC
Aug 17 at CHC
last game
Aug 17 vs CHW
0 days
days of rest
0 days
7
games in last 7 days
7
5th straight road game
home / road
5th straight home game

For context, not in our forecast.

Team Comparison

2026 season · box-score averages from 124+ games
CHW·CHC
−0.01
rating (0 = average)
+0.24
4.8
runs / game
5.2
4.5
runs allowed / game
4.4
65−59
season record
73−53
37−24
home record
37−26
28−35
away record
36−27
L1
streak
W1
6−4
last 10
6−4
8.0
hits / game
8.6
1.34
home runs / game
1.29
3.5
walks drawn / game
4.3
9.2
batter strikeouts / game
8.6
8.4
pitcher strikeouts / game
7.7
0.55
errors / game
0.37

Rating Trend

CHW · CHC · 143 days
Chicago White SoxChicago Cubs
Rating (0 = average team)

Head to Head

last 10 meetings · CHC 7−3
Aug 17at CHCCHC 7 − 5
May 17at CHWCHW 9 − 8
May 16at CHWCHW 8 − 3
May 15at CHWCHC 10 − 5
Jul 27, 2025at CHWCHC 5 − 4
Jul 26, 2025at CHWCHC 6 − 1
Jul 25, 2025at CHWCHW 12 − 5
May 18, 2025at CHCCHC 6 − 2
May 17, 2025at CHCCHC 7 − 3
May 16, 2025at CHCCHC 13 − 3

CHW · Last 10

6−4 · streak L1
Aug 17at CHC5 − 7L
Aug 16at DET7 − 5W
Aug 15at DET4 − 3W
Aug 14at DET9 − 5W
Aug 13vs CIN8 − 9L
Aug 12vs CIN5 − 0W
Aug 11vs CIN4 − 5L
Aug 9vs CLE5 − 3W
Aug 8vs CLE6 − 3W
Aug 7vs CLE2 − 8L

CHC · Last 10

6−4 · streak W1
Aug 17vs CHW7 − 5W
Aug 16vs STL4 − 11L
Aug 15vs STL4 − 8L
Aug 14vs STL3 − 0W
Aug 13at WSH0 − 7L
Aug 12at WSH12 − 6W
Aug 11at WSH8 − 6W
Aug 9at KC10 − 2W
Aug 8at KC3 − 6L
Aug 7at KC6 − 4W