bayesRatings

Rays at Mariners

MLB · Saturday, Aug 8 · 8:50 PM CT · T-Mobile Park · Final TB 3 – SEA 2

Final Box Score

from the game summary
Team123456789THE
TB000102000371
SEA010000100281
Team box
TB·SEA
7
hits
8
1
home runs
2
3
walks
1
7
strikeouts
5
114
pitches thrown
166
1
errors
1
Top hitters
PlayerTeamH-ABRHRRBI
Josh NaylorSEA3-4222
Richie PalaciosTB2-3002
Victor Mesa Jr.TB1-4111
Chandler SimpsonTB2-4100
Taylor WardSEA1-4000
Julio RodriguezSEA1-4000
Pitchers
PitcherTeamIPHERBBK
Casey LeguminaTB1.11001
Steven Matz (W)TB2.00002
Bryan Baker (S)TB1.01000
George KirbySEA5.04122
Michael Rucker (L)SEA1.02011

For context, not in our forecast.

Game Flow

score margin
SEA +3
TB +3
123456789
largest lead: SEA 1 · TB 2lead changes: 1

For context, not in our forecast.

Final · our forecast was TB 52%, SEA 48% · Updated Aug 8

Expected margin
Even
Expected score
TB 4.0 – 3.9 SEA
Expected total
7.9
RaysThe matchupMariners
−107Our fair odds+107
4.0Expected runs3.9
+0.12Power rating−0.02
4.5Runs / game3.9
4.1Allowed / game4.1
8.6Hits / game7.6
1.03Home runs / game1.15
3.3Walks drawn / game3.3
69−46Season record56−61
7−3Last 104−6

Prediction markets

Kalshi · Polymarket US · ProphetX · Novig
TB chance · SEA chance
Our model fair51.7%48.3%
Kalshi45.7%58.7%
Polymarket USno two-sided price
ProphetXno two-sided price
Novigno two-sided price
Full price table
TeamOur modelfairKalshipre-game · 8:50 PM CTPolymarket US ProphetX Novig 
Moneyline
TBTampa Bay Rays−10752%+11945.7%———
SEASeattle Mariners+10748%−14258.7%———
Spreadabout even
TBTampa Bay Rays−0.1our margin————
SEASeattle Mariners+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
Tampa Bay Rays by 12 runs: <1%Tampa Bay Rays by 11 runs: <1%Tampa Bay Rays by 10 runs: 1%Tampa Bay Rays by 9 runs: 1%Tampa Bay Rays by 8 runs: 1%Tampa Bay Rays by 7 runs: 2%Tampa Bay Rays by 6 runs: 3%Tampa Bay Rays by 5 runs: 4%Tampa Bay Rays by 4 runs: 6%Tampa Bay Rays by 3 runs: 7%Tampa Bay Rays by 2 runs: 10%Tampa Bay Rays by 1 run: 16%Seattle Mariners by 1 run: 14%Seattle Mariners by 2 runs: 10%Seattle Mariners by 3 runs: 7%Seattle Mariners by 4 runs: 5%Seattle Mariners by 5 runs: 4%Seattle Mariners by 6 runs: 3%Seattle Mariners by 7 runs: 2%Seattle Mariners by 8 runs: 1%Seattle Mariners by 9 runs: 1%Seattle Mariners by 10 runs: <1%Seattle Mariners by 11 runs: <1%Seattle Mariners by 12 runs: <1%
← TB wins bySEA wins by →
Tampa Bay Rays wins by 2 or more35%
Tampa Bay Rays wins by 3 or more25%
Seattle Mariners 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
TBCasey Legumina RP · last 3 starts: 5.0 IP, 1.80 ERA, 2 Kstarted
SEAGeorge Kirby SP · last 3 starts: 17.0 IP, 3.71 ERA, 12 Kstarted

Starting pitchers are part of our forecast.

Rest and Schedule

before this game
TB·SEA
Aug 7 at SEA
last game
Aug 7 vs TB
0 days
days of rest
0 days
6
games in last 7 days
6
5th straight road game
home / road
8th straight home game

For context, not in our forecast.

Team Comparison

2026 season · box-score averages from 115+ games
TB·SEA
+0.12
rating (0 = average)
−0.02
4.5
runs / game
3.9
4.1
runs allowed / game
4.1
69−46
season record
56−61
41−18
home record
33−27
28−28
away record
23−34
W4
streak
L2
7−3
last 10
4−6
8.6
hits / game
7.6
1.03
home runs / game
1.15
3.3
walks drawn / game
3.3
7.2
batter strikeouts / game
8.5
8.2
pitcher strikeouts / game
8.5
0.58
errors / game
0.50

Rating Trend

TB · SEA · 133 days
Tampa Bay RaysSeattle Mariners
Rating (0 = average team)

Head to Head

last 10 meetings · SEA 4−6
Aug 7at SEATB 2 − 1
Jul 12at TBSEA 8 − 2
Jul 11at TBTB 6 − 1
Jul 10at TBTB 7 − 2
Sep 3, 2025at TBTB 9 − 4
Sep 2, 2025at TBTB 6 − 5
Sep 1, 2025at TBTB 10 − 2
Aug 10, 2025at SEASEA 6 − 3
Aug 9, 2025at SEASEA 7 − 4
Aug 8, 2025at SEASEA 3 − 2

TB · Last 10

7−3 · streak W4
Aug 7at SEA2 − 1W
Aug 5at COL4 − 0W
Aug 4at COL9 − 7W
Aug 3at COL13 − 9W
Aug 2vs CHW1 − 9L
Aug 1vs CHW1 − 0W
Jul 31vs CHW1 − 6L
Jul 30vs TEX3 − 2W
Jul 29vs TEX3 − 0W
Jul 28vs TEX1 − 4L

SEA · Last 10

4−6 · streak L2
Aug 7vs TB1 − 2L
Aug 6vs DET0 − 11L
Aug 5vs DET4 − 2W
Aug 4vs DET0 − 8L
Aug 2vs MIN7 − 6W
Aug 1vs MIN4 − 3W
Jul 31vs MIN3 − 5L
Jul 30at LAD2 − 6L
Jul 29at LAD2 − 4L
Jul 28at LAD7 − 6W