bayesRatings

Royals at Athletics

MLB · Thursday, Apr 30 · 2:05 PM CT · Sutter Health Park · Final KC 3 – ATH 6
← MLB / Apr 30

Final Box Score

from the game summary
Team123456789THE
KC1100000103101
ATH140000106110
Team box
KC·ATH
10
hits
11
2
home runs
0
4
walks
3
6
strikeouts
5
118
pitches thrown
168
1
errors
0
Top hitters
PlayerTeamH-ABRHRRBI
Maikel GarciaKC3-5211
Darell HernaizATH3-4002
Shea LangeliersATH3-4201
Starling MarteKC3-4001
Elias DiazKC1-4111
Nick KurtzATH1-3102
Pitchers
PitcherTeamIPHERBBK
Noah Cameron (L)KC5.19425
Jeffrey SpringsATH3.05214
Luis Medina (W)ATH2.23021
Jack Perkins (S)ATH1.01001

For context, not in our forecast.

Game Flow

score margin
ATH +4
KC +4
123456789
largest lead: ATH 4 · KC 1lead changes: 1

For context, not in our forecast.

Final · our forecast was KC 48%, ATH 52% · Updated Apr 30

Expected margin
Even
Expected score
KC 4.4 – 4.2 ATH
Expected total
8.7
RoyalsThe matchupAthletics
+107Our fair odds−107
4.4Expected runs4.2
−0.03Power rating−0.04
4.1Runs / game4.2
4.7Allowed / game4.4
7.9Hits / game8.3
0.97Home runs / game1.07
3.7Walks drawn / game3.8
12−18Season record16−14
5−5Last 106−4

Prediction markets

Kalshi · Polymarket US · ProphetX · Novig
KC chance · ATH chance
Our model fair48.3%51.7%
Kalshi49.7%54.7%
Polymarket USno two-sided price
ProphetXno two-sided price
Novigno two-sided price
Full price table
TeamOur modelfairKalshipre-game · 2:05 PM CTPolymarket US ProphetX Novig 
Moneyline
KCKansas City Royals+10748%+10149.7%———
ATHAthletics−10752%−12154.7%———
Spreadabout even
KCKansas City Royals−0.2our margin————
ATHAthletics+0.2our margin————
Totalwe expect 8.7
Over8.7our total————
Under8.7our 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
Kansas City Royals by 13 runs: <1%Kansas City Royals by 12 runs: <1%Kansas City Royals by 11 runs: <1%Kansas City Royals by 10 runs: 1%Kansas City Royals by 9 runs: 1%Kansas City Royals by 8 runs: 2%Kansas City Royals by 7 runs: 2%Kansas City Royals by 6 runs: 3%Kansas City Royals by 5 runs: 4%Kansas City Royals by 4 runs: 6%Kansas City Royals by 3 runs: 7%Kansas City Royals by 2 runs: 10%Kansas City Royals by 1 run: 11%Athletics by 1 run: 18%Athletics by 2 runs: 10%Athletics by 3 runs: 7%Athletics by 4 runs: 5%Athletics by 5 runs: 4%Athletics by 6 runs: 3%Athletics by 7 runs: 2%Athletics by 8 runs: 1%Athletics by 9 runs: 1%Athletics by 10 runs: 1%Athletics by 11 runs: <1%Athletics by 12 runs: <1%Athletics by 13 runs: <1%
← KC wins byATH wins by →
Kansas City Royals wins by 2 or more38%
Kansas City Royals wins by 3 or more28%
Athletics wins by 2 or more34%
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

8.7 expected
1 runs: 2%2 runs: 2%3 runs: 6%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 6.567%
Total over 8.547%
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
KCNoah Cameron SP · last 3 starts: 15.2 IP, 7.47 ERA, 13 Kstarted
ATHJeffrey Springs SP · last 3 starts: 17.1 IP, 6.23 ERA, 16 Kstarted

Starting pitchers are part of our forecast.

Rest and Schedule

before this game
KC·ATH
Apr 29 at ATH
last game
Apr 29 vs KC
0 days
days of rest
0 days
5
games in last 7 days
5
3rd straight road game
home / road
3rd straight home game

For context, not in our forecast.

Team Comparison

2026 season · box-score averages from 30+ games
KC·ATH
−0.03
rating (0 = average)
−0.04
4.1
runs / game
4.2
4.7
runs allowed / game
4.4
12−18
season record
16−14
9−7
home record
6−6
3−11
away record
10−8
L1
streak
W1
5−5
last 10
6−4
7.9
hits / game
8.3
0.97
home runs / game
1.07
3.7
walks drawn / game
3.8
8.4
batter strikeouts / game
8.9
8.6
pitcher strikeouts / game
8.1
0.27
errors / game
0.20

Rating Trend

KC · ATH · 36 days
Kansas City RoyalsAthletics
Rating (0 = average team)

Head to Head

last 10 meetings · ATH 6−4
Apr 29at ATHATH 5 − 2
Apr 28at ATHKC 4 − 1
Sep 28, 2025at ATHKC 9 − 2
Sep 27, 2025at ATHKC 4 − 2
Sep 26, 2025at ATHATH 4 − 3
Jun 15, 2025at KCATH 3 − 2
Jun 14, 2025at KCATH 4 − 0
Jun 13, 2025at KCATH 6 − 4
Jun 20, 2024at ATHKC 3 − 2
Jun 19, 2024at ATHATH 5 − 1

KC · Last 10

5−5 · streak L1
Apr 29at ATH2 − 5L
Apr 28at ATH4 − 1W
Apr 26vs LAA11 − 9W
Apr 25vs LAA12 − 1W
Apr 24vs LAA6 − 3W
Apr 22vs BAL6 − 8L
Apr 21vs BAL6 − 5W
Apr 20vs BAL5 − 7L
Apr 19at NYY0 − 7L
Apr 18at NYY4 − 13L

ATH · Last 10

6−4 · streak W1
Apr 29vs KC5 − 2W
Apr 28vs KC1 − 4L
Apr 26at TEX2 − 1W
Apr 25at TEX3 − 4L
Apr 24at TEX8 − 1W
Apr 22at SEA4 − 5L
Apr 21at SEA5 − 2W
Apr 20at SEA6 − 4W
Apr 19vs CHW4 − 7L
Apr 18vs CHW7 − 6W