bayesRatings

Orioles at Red Sox

MLB · Thursday, Jun 4 · 12:35 PM CT · Fenway Park · Final BAL 8 – BOS 2

Final Box Score

from the game summary
Team123456789THE
BAL6000200008100
BOS000001001271
Team box
BAL·BOS
10
hits
7
0
home runs
1
6
walks
1
8
strikeouts
6
127
pitches thrown
173
0
errors
1
Top hitters
PlayerTeamH-ABRHRRBI
Willson ContrerasBOS2-4112
Taylor WardBAL3-5101
Coby MayoBAL1-4103
Leody TaverasBAL1-5101
Pete AlonsoBAL2-4100
Adley RutschmanBAL1-5001
Pitchers
PitcherTeamIPHERBBK
Trevor Rogers (W)BAL5.25113
Brayan Bello (L)BOS5.07834

For context, not in our forecast.

Game Flow

score margin
BOS +8
BAL +8
123456789
largest lead: BOS 0 · BAL 8lead changes: 0

For context, not in our forecast.

Final · our forecast was BAL 45%, BOS 55% · Updated Jun 4

Expected margin
BOS by 0.8
Expected score
BOS 4.7 – 3.9 BAL
Expected total
8.6
OriolesThe matchupRed Sox
+122Our fair odds−122
3.9Expected runs4.7
−0.10Power rating+0.04
4.5Runs / game4.0
5.2Allowed / game4.0
8.0Hits / game8.4
1.13Home runs / game0.75
3.9Walks drawn / game3.1
29−33Season record26−34
6−4Last 104−6

Prediction markets

Kalshi · Polymarket US · ProphetX · Novig
BAL chance · BOS chance
Our model fair45.1%54.9%
Kalshi50.7%54.7%
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
BALBaltimore Orioles+12245%−10350.7%———
BOSBoston Red Sox−12255%−12154.7%———
SpreadBOS by 0.8
BALBaltimore Orioles+0.8our margin————
BOSBoston Red Sox−0.8our margin————
Totalwe expect 8.6
Over8.6our total————
Under8.6our 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

Boston Red Sox by 0.8 expected
Baltimore Orioles by 14 runs: <1%Baltimore Orioles by 13 runs: <1%Baltimore Orioles by 12 runs: <1%Baltimore Orioles by 11 runs: <1%Baltimore Orioles by 10 runs: <1%Baltimore Orioles by 9 runs: 1%Baltimore Orioles by 8 runs: 1%Baltimore Orioles by 7 runs: 1%Baltimore Orioles by 6 runs: 2%Baltimore Orioles by 5 runs: 3%Baltimore Orioles by 4 runs: 4%Baltimore Orioles by 3 runs: 6%Baltimore Orioles by 2 runs: 9%Baltimore Orioles by 1 run: 16%Boston Red Sox by 1 run: 12%Boston Red Sox by 2 runs: 11%Boston Red Sox by 3 runs: 8%Boston Red Sox by 4 runs: 6%Boston Red Sox by 5 runs: 5%Boston Red Sox by 6 runs: 4%Boston Red Sox by 7 runs: 3%Boston Red Sox by 8 runs: 2%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%Boston Red Sox by 13 runs: <1%Boston Red Sox by 14 runs: <1%
← BAL wins byBOS wins by →
Boston Red Sox wins by 2 or more43%
Boston Red Sox wins by 3 or more32%
Baltimore Orioles wins by 2 or more29%
Decided by one run28%

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

8.6 expected
1 runs: 2%2 runs: 2%3 runs: 7%4 runs: 5%5 runs: 11%6 runs: 7%7 runs: 12%8 runs: 8%9 runs: 10%10 runs: 6%11 runs: 8%12 runs: 5%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%23 runs: <1%
Total runs, both teams
Total over 6.566%
Total over 8.546%
Total over 10.530%
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
BALTrevor Rogers SP · last 3 starts: 14.1 IP, 9.42 ERA, 8 Kstarted
BOSBrayan Bello SP · last 3 starts: 12.0 IP, 14.25 ERA, 5 Kstarted

Starting pitchers are part of our forecast.

Rest and Schedule

before this game
BAL·BOS
Jun 3 at BOS
last game
Jun 3 vs BAL
0 days
days of rest
0 days
6
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 60+ games
BAL·BOS
−0.10
rating (0 = average)
+0.04
4.5
runs / game
4.0
5.2
runs allowed / game
4.0
29−33
season record
26−34
19−15
home record
10−20
10−18
away record
16−14
L1
streak
W1
6−4
last 10
4−6
8.0
hits / game
8.4
1.13
home runs / game
0.75
3.9
walks drawn / game
3.1
8.9
batter strikeouts / game
8.3
7.9
pitcher strikeouts / game
8.5
0.53
errors / game
0.50

Rating Trend

BAL · BOS · 71 days
Baltimore OriolesBoston Red Sox
Rating (0 = average team)

Head to Head

last 10 meetings · BOS 7−3
Jun 3at BOSBOS 8 − 1
Jun 2at BOSBAL 4 − 2
Apr 26at BALBOS 5 − 3
Apr 25at BALBOS 17 − 1
Apr 24at BALBAL 10 − 3
Aug 28, 2025at BALBOS 3 − 2
Aug 27, 2025at BALBOS 3 − 2
Aug 26, 2025at BALBOS 5 − 0
Aug 25, 2025at BALBOS 4 − 3
Aug 19, 2025at BOSBAL 4 − 3

BAL · Last 10

6−4 · streak L1
Jun 3at BOS1 − 8L
Jun 2at BOS4 − 2W
May 31vs TOR9 − 5W
May 30vs TOR6 − 5W
May 29vs TOR5 − 6L
May 28vs TOR1 − 2L
May 27vs TB11 − 2W
May 26vs TB6 − 1W
May 25vs TB9 − 7W
May 24vs DET1 − 4L

BOS · Last 10

4−6 · streak W1
Jun 3vs BAL8 − 1W
Jun 2vs BAL2 − 4L
May 31at CLE9 − 4W
May 30at CLE9 − 1W
May 29at CLE3 − 4L
May 28vs ATL2 − 10L
May 27vs ATL8 − 0W
May 26vs ATL6 − 7L
May 24vs MIN5 − 6L
May 23vs MIN2 − 4L