bayesRatings

Padres at Red Sox

MLB · Sunday, Apr 5 · 12:35 PM CT · Fenway Park · Final SD 8 – BOS 6

Final Box Score

from the game summary
Team123456789THE
SD0003300118120
BOS004000200692
Team box
SD·BOS
12
hits
9
2
home runs
0
3
walks
4
7
strikeouts
10
149
pitches thrown
157
0
errors
2
Top hitters
PlayerTeamH-ABRHRRBI
Manny MachadoSD2-4213
Jackson MerrillSD3-5312
Masataka YoshidaBOS3-4003
Wilyer AbreuBOS3-4201
Jarren DuranBOS1-5102
Nick CastellanosSD1-3002
Pitchers
PitcherTeamIPHERBBK
Walker BuehlerSD2.23434
Jeremiah Estrada (W)SD1.00001
Mason Miller (S)SD1.00003
Ranger SuarezBOS4.06422
Tyler Uberstine (L)BOS2.23112

For context, not in our forecast.

Game Flow

score margin
BOS +4
SD +4
123456789
largest lead: BOS 4 · SD 2lead changes: 1

For context, not in our forecast.

Final · our forecast was SD 48%, BOS 52% · Updated Apr 5

Expected margin
Even
Expected score
BOS 4.1 – 4.0 SD
Expected total
8.2
PadresThe matchupRed Sox
+109Our fair odds−109
4.0Expected runs4.1
+0.09Power rating+0.08
3.0Runs / game3.0
4.1Allowed / game4.6
6.1Hits / game7.4
0.38Home runs / game1.00
3.4Walks drawn / game3.0
3−5Season record2−6
4−6Last 102−8

Prediction markets

Kalshi · Polymarket US · ProphetX · Novig
SD chance · BOS chance
Our model fair48.0%52.0%
Kalshi43.7%60.7%
Polymarket USno two-sided price
ProphetXno two-sided price
Novigno two-sided price
Full price table
TeamOur modelfairKalshipre-game · 12:35 PM CTPolymarket US ProphetX Novig 
Moneyline
SDSan Diego Padres+10948%+12943.7%———
BOSBoston Red Sox−10952%−15460.7%———
Spreadabout even
SDSan Diego Padres+0.1our margin————
BOSBoston Red Sox−0.1our margin————
Totalwe expect 8.2
Over8.2our total————
Under8.2our 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
San Diego Padres by 12 runs: <1%San Diego Padres by 11 runs: <1%San Diego Padres by 10 runs: 1%San Diego Padres by 9 runs: 1%San Diego Padres by 8 runs: 1%San Diego Padres by 7 runs: 2%San Diego Padres by 6 runs: 3%San Diego Padres by 5 runs: 4%San Diego Padres by 4 runs: 5%San Diego Padres by 3 runs: 7%San Diego Padres by 2 runs: 10%San Diego Padres by 1 run: 14%Boston Red Sox by 1 run: 16%Boston Red Sox by 2 runs: 10%Boston Red Sox by 3 runs: 7%Boston Red Sox by 4 runs: 6%Boston Red Sox by 5 runs: 4%Boston Red Sox by 6 runs: 3%Boston Red Sox by 7 runs: 2%Boston Red Sox by 8 runs: 1%Boston Red Sox by 9 runs: 1%Boston Red Sox by 10 runs: 1%Boston Red Sox by 11 runs: <1%Boston Red Sox by 12 runs: <1%
← SD wins byBOS wins by →
Boston Red Sox wins by 2 or more36%
Boston Red Sox wins by 3 or more26%
San Diego Padres wins by 2 or more34%
Decided by one run30%

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

8.2 expected
1 runs: 2%2 runs: 2%3 runs: 8%4 runs: 6%5 runs: 12%6 runs: 8%7 runs: 12%8 runs: 8%9 runs: 10%10 runs: 6%11 runs: 7%12 runs: 4%13 runs: 4%14 runs: 3%15 runs: 3%16 runs: 1%17 runs: 1%18 runs: 1%19 runs: 1%20 runs: <1%21 runs: <1%22 runs: <1%
Total runs, both teams
Total over 6.563%
Total over 8.543%
Total over 10.526%
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
SDWalker Buehler SP · last 3 starts: 14.0 IP, 2.57 ERA, 8 Kstarted
BOSRanger Suarez SP · last 3 starts: 12.2 IP, 9.24 ERA, 9 Kstarted

Starting pitchers are part of our forecast.

Rest and Schedule

before this game
SD·BOS
Apr 4 at BOS
last game
Apr 4 vs SD
0 days
days of rest
0 days
5
games in last 7 days
6
3rd straight road game
home / road
3rd straight home game

For context, not in our forecast.

Team Comparison

2026 season · box-score averages from 8+ games
SD·BOS
+0.09
rating (0 = average)
+0.08
3.0
runs / game
3.0
4.1
runs allowed / game
4.6
3−5
season record
2−6
2−4
home record
1−1
1−1
away record
1−5
W1
streak
L1
4−6
last 10
2−8
6.1
hits / game
7.4
0.38
home runs / game
1.00
3.4
walks drawn / game
3.0
8.2
batter strikeouts / game
10.4
9.5
pitcher strikeouts / game
8.6
0.38
errors / game
0.88

Rating Trend

SD · BOS · 11 days
San Diego PadresBoston Red Sox
Rating (0 = average team)

Head to Head

last 10 meetings · BOS 4−6
Apr 4at BOSSD 3 − 2
Apr 3at BOSBOS 5 − 2
Aug 10, 2025at SDSD 6 − 2
Aug 9, 2025at SDSD 5 − 4
Aug 8, 2025at SDBOS 10 − 2
Jun 30, 2024at BOSBOS 4 − 1
Jun 29, 2024at BOSSD 11 − 1
Jun 28, 2024at BOSSD 9 − 2
May 21, 2023at SDSD 7 − 0
May 20, 2023at SDBOS 4 − 2

SD · Last 10

4−6 · streak W1
Apr 4at BOS3 − 2W
Apr 3at BOS2 − 5L
Apr 1vs SF7 − 1W
Mar 31vs SF3 − 9L
Mar 30vs SF2 − 3L
Mar 28vs DET3 − 0W
Mar 27vs DET2 − 5L
Mar 26vs DET2 − 8L
Oct 2, 2025at CHC1 − 3L
Oct 1, 2025at CHC3 − 0W

BOS · Last 10

2−8 · streak L1
Apr 4vs SD2 − 3L
Apr 3vs SD5 − 2W
Apr 1at HOU4 − 6L
Mar 31at HOU2 − 9L
Mar 30at HOU1 − 8L
Mar 29at CIN2 − 3L
Mar 28at CIN5 − 6L
Mar 26at CIN3 − 0W
Oct 2, 2025at NYY0 − 4L
Oct 1, 2025at NYY3 − 4L