bayesRatings

Red Sox at Yankees

MLB · Saturday, Aug 29 · 6:15 PM CT · Yankee Stadium · Final BOS 2 – NYY 9

Final Box Score

from the game summary
Team123456789THE
BOS001000010261
NYY003001059130
Team box
BOS·NYY
6
hits
13
1
home runs
0
2
walks
1
10
strikeouts
5
154
pitches thrown
149
1
errors
0
Top hitters
PlayerTeamH-ABRHRRBI
Ben RiceNYY2-5103
Luis Garcia Jr.NYY3-4101
Nick SogardBOS1-4111
Amed RosarioNYY2-2101
Austin WellsNYY1-4102
Willson ContrerasBOS1-2001
Pitchers
PitcherTeamIPHERBBK
Alec GamboaBOS1.11001
Brayan Bello (L)BOS4.15412
Max FriedNYY3.23114
Paul Blackburn (W)NYY1.00002

For context, not in our forecast.

Game Flow

score margin
NYY +7
BOS +7
123456789
largest lead: NYY 7 · BOS 1lead changes: 1

For context, not in our forecast.

Final · our forecast was BOS 48%, NYY 52% · Updated Aug 29

Expected margin
Even
Expected score
NYY 4.0 – 3.9 BOS
Expected total
7.9
Red SoxThe matchupYankees
+108Our fair odds−108
3.9Expected runs4.0
+0.20Power rating+0.21
4.5Runs / game4.5
3.7Allowed / game3.7
8.4Hits / game7.6
1.01Home runs / game1.37
3.2Walks drawn / game3.6
73−61Season record76−58
7−3Last 107−3

Prediction markets

Kalshi · Polymarket US · ProphetX · Novig
BOS chance · NYY chance
Our model fair48.0%52.0%
Kalshino two-sided price
Polymarket USno two-sided price
ProphetXno two-sided price
Novigno two-sided price
Full price table
TeamOur modelfairKalshi Polymarket US ProphetX Novig 
Moneyline
BOSBoston Red Sox+10848%————
NYYNew York Yankees−10852%————
Spreadabout even
BOSBoston Red Sox+0.1our margin————
NYYNew York Yankees−0.1our margin————
Totalwe expect 7.9
Over7.9our total————
Under7.9our 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
Boston Red Sox by 12 runs: <1%Boston Red Sox by 11 runs: <1%Boston Red Sox by 10 runs: <1%Boston Red Sox by 9 runs: 1%Boston Red Sox by 8 runs: 1%Boston Red Sox by 7 runs: 2%Boston Red Sox by 6 runs: 3%Boston Red Sox by 5 runs: 4%Boston Red Sox by 4 runs: 5%Boston Red Sox by 3 runs: 7%Boston Red Sox by 2 runs: 10%Boston Red Sox by 1 run: 14%New York Yankees by 1 run: 17%New York Yankees by 2 runs: 10%New York Yankees by 3 runs: 7%New York Yankees by 4 runs: 5%New York Yankees by 5 runs: 4%New York Yankees by 6 runs: 3%New York Yankees by 7 runs: 2%New York Yankees by 8 runs: 1%New York Yankees by 9 runs: 1%New York Yankees by 10 runs: 1%New York Yankees by 11 runs: <1%New York Yankees by 12 runs: <1%
← BOS wins byNYY wins by →
New York Yankees wins by 2 or more35%
New York Yankees wins by 3 or more25%
Boston Red Sox wins by 2 or more34%
Decided by one run31%

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

7.9 expected
1 runs: 2%2 runs: 2%3 runs: 8%4 runs: 6%5 runs: 13%6 runs: 8%7 runs: 13%8 runs: 8%9 runs: 10%10 runs: 6%11 runs: 7%12 runs: 4%13 runs: 4%14 runs: 2%15 runs: 2%16 runs: 1%17 runs: 1%18 runs: 1%19 runs: 1%20 runs: <1%21 runs: <1%
Total runs, both teams
Total over 5.568%
Total over 7.548%
Total over 9.530%
Total from 6 to 939%

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
BOSAlec Gamboa RP · last 1 start: 1.1 IP, 0.00 ERA, 1 Kstarted
NYYMax Fried SP · last 3 starts: 16.2 IP, 1.08 ERA, 18 Kstarted

Starting pitchers are part of our forecast.

Rest and Schedule

before this game
BOS·NYY
Aug 29 at NYY
last game
Aug 29 vs BOS
same day
days of rest
same day
7
games in last 7 days
7
6th straight road game
home / road
9th straight home game

For context, not in our forecast.

Team Comparison

2026 season · box-score averages from 134+ games
BOS·NYY
+0.20
rating (0 = average)
+0.21
4.5
runs / game
4.5
3.7
runs allowed / game
3.7
73−61
season record
76−58
34−32
home record
35−30
39−29
away record
41−28
L2
streak
W1
7−3
last 10
7−3
8.4
hits / game
7.6
1.01
home runs / game
1.37
3.2
walks drawn / game
3.6
8.1
batter strikeouts / game
9.2
8.6
pitcher strikeouts / game
9.0
0.54
errors / game
0.57

Rating Trend

BOS · NYY · 154 days
Boston Red SoxNew York Yankees
Rating (0 = average team)

Head to Head

last 10 meetings · NYY 5−5
Aug 28at NYYNYY 1 − 0
Jun 28at BOSBOS 5 − 4
Jun 27at BOSBOS 4 − 1
Jun 26at BOSBOS 6 − 1
Jun 25at BOSBOS 6 − 3
Jun 7at NYYNYY 6 − 1
Jun 5at NYYBOS 5 − 3
Apr 23at BOSNYY 4 − 2
Apr 22at BOSNYY 4 − 1
Apr 21at BOSNYY 4 − 0

BOS · Last 10

7−3 · streak L2
Aug 28at NYY0 − 1L
Aug 26at MIA0 − 4L
Aug 25at MIA7 − 3W
Aug 24at MIA4 − 2W
Aug 23vs SF5 − 4W
Aug 22vs SF3 − 2W
Aug 21vs SF6 − 4W
Aug 19vs ARI6 − 7L
Aug 18vs ARI9 − 4W
Aug 17vs ARI11 − 1W

NYY · Last 10

7−3 · streak W1
Aug 28vs BOS1 − 0W
Aug 27vs HOU1 − 5L
Aug 26vs HOU9 − 3W
Aug 25vs HOU7 − 9L
Aug 23vs TOR8 − 3W
Aug 22vs TOR3 − 4L
Aug 21vs TOR3 − 1W
Aug 20at BAL6 − 1W
Aug 19at BAL5 − 3W
Aug 18at BAL3 − 1W