bayesRatings

Diamondbacks at Padres

MLB · Sunday, Sep 27 · 2:10 PM CT · Petco Park · Final ARI 4 – SD 9

Final Box Score

from the game summary
Team123456789THE
ARI000001300480
SD001111329110
Team box
ARI·SD
8
hits
11
0
home runs
1
1
walks
6
4
strikeouts
9
168
pitches thrown
132
0
errors
0
Top hitters
PlayerTeamH-ABRHRRBI
Freddy FerminSD2-4003
Austin HaysSD2-4202
Gavin SheetsSD1-2111
Ty FranceSD2-4201
Ketel MarteARI1-4001
Corbin CarrollARI1-3101
Pitchers
PitcherTeamIPHERBBK
Michael SorokaARI4.23324
Justin Martinez (L)ARI0.10340
Randy VasquezSD6.03102
Griffin Canning (W)SD3.05312

For context, not in our forecast.

Game Flow

score margin
SD +5
ARI +5
123456789
largest lead: SD 5 · ARI 0lead changes: 0

For context, not in our forecast.

Final · our forecast was ARI 46%, SD 54% · Updated Sep 27

Expected margin
Even
Expected score
SD 4.4 – 4.1 ARI
Expected total
8.5
DiamondbacksThe matchupPadres
+118Our fair odds−118
4.1Expected runs4.4
+0.06Power rating+0.16
4.6Runs / game4.4
4.5Allowed / game4.2
8.3Hits / game8.1
1.03Home runs / game1.13
3.4Walks drawn / game3.4
86−75Season record90−71
6−4Last 108−2

Prediction markets

Kalshi · Polymarket US · ProphetX · Novig
ARI chance · SD chance
Our model fair45.8%54.2%
Kalshi61.7%42.7%
Polymarket USno two-sided price
ProphetXno two-sided price
Novigno two-sided price
Full price table
TeamOur modelfairKalshipre-game · 2:10 PM CTPolymarket US ProphetX Novig 
Moneyline
ARIArizona Diamondbacks+11846%−16161.7%———
SDSan Diego Padres−11854%+13442.7%———
Spreadabout even
ARIArizona Diamondbacks+0.3our margin————
SDSan Diego Padres−0.3our margin————
Totalwe expect 8.5
Over8.5our total————
Under8.5our 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
Arizona Diamondbacks by 13 runs: <1%Arizona Diamondbacks by 12 runs: <1%Arizona Diamondbacks by 11 runs: <1%Arizona Diamondbacks by 10 runs: 1%Arizona Diamondbacks by 9 runs: 1%Arizona Diamondbacks by 8 runs: 1%Arizona Diamondbacks by 7 runs: 2%Arizona Diamondbacks by 6 runs: 3%Arizona Diamondbacks by 5 runs: 4%Arizona Diamondbacks by 4 runs: 5%Arizona Diamondbacks by 3 runs: 7%Arizona Diamondbacks by 2 runs: 10%Arizona Diamondbacks by 1 run: 13%San Diego Padres by 1 run: 16%San Diego Padres by 2 runs: 10%San Diego Padres by 3 runs: 7%San Diego Padres by 4 runs: 6%San Diego Padres by 5 runs: 4%San Diego Padres by 6 runs: 3%San Diego Padres by 7 runs: 2%San Diego Padres by 8 runs: 2%San Diego Padres by 9 runs: 1%San Diego Padres by 10 runs: 1%San Diego Padres by 11 runs: <1%San Diego Padres by 12 runs: <1%San Diego Padres by 13 runs: <1%
← ARI wins bySD wins by →
San Diego Padres wins by 2 or more38%
San Diego Padres wins by 3 or more28%
Arizona Diamondbacks 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

8.5 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: 8%12 runs: 4%13 runs: 5%14 runs: 3%15 runs: 3%16 runs: 2%17 runs: 2%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 8.546%
Total over 10.529%
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
ARIMichael Soroka SP · last 3 starts: 15.1 IP, 4.70 ERA, 18 Kstarted
SDRandy Vasquez SP · last 3 starts: 16.2 IP, 2.16 ERA, 8 Kstarted

Starting pitchers are part of our forecast.

Rest and Schedule

before this game
ARI·SD
Sep 26 at SD
last game
Sep 26 vs ARI
0 days
days of rest
0 days
6
games in last 7 days
6
6th straight road game
home / road
3rd straight home game

For context, not in our forecast.

Team Comparison

2026 season · box-score averages from 161+ games
ARI·SD
+0.06
rating (0 = average)
+0.16
4.6
runs / game
4.4
4.5
runs allowed / game
4.2
86−75
season record
90−71
45−36
home record
50−30
41−39
away record
40−41
L1
streak
W1
6−4
last 10
8−2
8.3
hits / game
8.1
1.03
home runs / game
1.13
3.4
walks drawn / game
3.4
7.4
batter strikeouts / game
8.1
7.0
pitcher strikeouts / game
8.1
0.40
errors / game
0.40

Rating Trend

ARI · SD · 183 days
Arizona DiamondbacksSan Diego Padres
Rating (0 = average team)

Head to Head

last 10 meetings · SD 5−5
Sep 26at SDSD 10 − 7
Sep 25at SDARI 11 − 4
Aug 6at ARISD 5 − 1
Aug 5at ARIARI 10 − 4
Aug 4at ARISD 9 − 4
Aug 3at ARIARI 5 − 1
Jul 9at SDARI 3 − 1
Jul 8at SDSD 10 − 4
Jul 7at SDSD 4 − 1
Jul 6at SDARI 8 − 0

ARI · Last 10

6−4 · streak L1
Sep 26at SD7 − 10L
Sep 25at SD11 − 4W
Sep 24at COL12 − 8W
Sep 23at COL5 − 3W
Sep 22at COL7 − 2W
Sep 20vs NYY8 − 4W
Sep 19vs NYY5 − 3W
Sep 18vs NYY2 − 9L
Sep 16vs MIA3 − 4L
Sep 15vs MIA2 − 4L

SD · Last 10

8−2 · streak W1
Sep 26vs ARI10 − 7W
Sep 25vs ARI4 − 11L
Sep 24at LAD4 − 2W
Sep 23at LAD5 − 1W
Sep 22at LAD0 − 7L
Sep 20vs MIA7 − 3W
Sep 19vs MIA7 − 6W
Sep 18vs MIA8 − 2W
Sep 17at COL9 − 2W
Sep 16at COL9 − 3W