bayesRatings

Athletics at Royals

MLB · Monday, Aug 17 · 6:40 PM CT · Kauffman Stadium · Final ATH 5 – KC 9

Final Box Score

from the game summary
Team123456789THE
ATH100030001581
KC321001029130
Team box
ATH·KC
8
hits
13
3
home runs
1
3
walks
4
4
strikeouts
6
147
pitches thrown
139
1
errors
0
Top hitters
PlayerTeamH-ABRHRRBI
Bobby Witt Jr.KC3-4413
Jac CaglianoneKC3-5102
Brian ServenATH1-4112
Jeff McNeilATH1-4111
Tommy WhiteATH1-3111
Salvador PerezKC1-3002
Pitchers
PitcherTeamIPHERBBK
Mason Barnett (L)ATH2.27642
Michael Wacha (W)KC5.06403
Steven Cruz (S)KC1.00000

For context, not in our forecast.

Game Flow

score margin
KC +5
ATH +5
123456789
largest lead: KC 5 · ATH 1lead changes: 1

For context, not in our forecast.

Final · our forecast was ATH 44%, KC 56% · Updated Aug 17

Expected margin
KC by 0.6
Expected score
KC 5.0 – 4.4 ATH
Expected total
9.3
AthleticsThe matchupRoyals
+126Our fair odds−126
4.4Expected runs5.0
−0.34Power rating−0.17
4.4Runs / game4.1
5.8Allowed / game5.0
8.3Hits / game8.1
1.20Home runs / game1.01
3.3Walks drawn / game3.1
49−75Season record51−74
4−6Last 103−7

Prediction markets

Kalshi · Polymarket US · ProphetX · Novig
ATH chance · KC chance
Our model fair44.2%55.8%
Kalshi38.6%65.6%
Polymarket USno two-sided price
ProphetXno two-sided price
Novigno two-sided price
Full price table
TeamOur modelfairKalshipre-game · 6:40 PM CTPolymarket US ProphetX Novig 
Moneyline
ATHAthletics+12644%+15938.6%———
KCKansas City Royals−12656%−19165.6%———
SpreadKC by 0.6
ATHAthletics+0.6our margin————
KCKansas City Royals−0.6our margin————
Totalwe expect 9.3
Over9.3our total————
Under9.3our 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

Kansas City Royals by 0.6 expected
Athletics by 14 runs: <1%Athletics by 13 runs: <1%Athletics by 12 runs: <1%Athletics by 11 runs: <1%Athletics by 10 runs: 1%Athletics by 9 runs: 1%Athletics by 8 runs: 1%Athletics by 7 runs: 2%Athletics by 6 runs: 3%Athletics by 5 runs: 4%Athletics by 4 runs: 5%Athletics by 3 runs: 6%Athletics by 2 runs: 9%Athletics by 1 run: 12%Kansas City Royals by 1 run: 15%Kansas City Royals by 2 runs: 10%Kansas City Royals by 3 runs: 8%Kansas City Royals by 4 runs: 6%Kansas City Royals by 5 runs: 5%Kansas City Royals by 6 runs: 4%Kansas City Royals by 7 runs: 3%Kansas City Royals by 8 runs: 2%Kansas City Royals by 9 runs: 1%Kansas City Royals by 10 runs: 1%Kansas City Royals by 11 runs: 1%Kansas City Royals by 12 runs: <1%Kansas City Royals by 13 runs: <1%Kansas City Royals by 14 runs: <1%
← ATH wins byKC wins by →
Kansas City Royals wins by 2 or more41%
Kansas City Royals wins by 3 or more31%
Athletics wins by 2 or more32%
Decided by one run27%

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

9.3 expected
1 runs: 1%2 runs: 1%3 runs: 5%4 runs: 4%5 runs: 9%6 runs: 7%7 runs: 11%8 runs: 8%9 runs: 10%10 runs: 7%11 runs: 8%12 runs: 5%13 runs: 6%14 runs: 3%15 runs: 4%16 runs: 2%17 runs: 2%18 runs: 1%19 runs: 1%20 runs: 1%21 runs: 1%22 runs: <1%23 runs: <1%24 runs: <1%
Total runs, both teams
Total over 7.560%
Total over 9.542%
Total over 11.527%
Total from 8 to 1133%

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
ATHMason Barnett RP · last 3 starts: 13.1 IP, 8.78 ERA, 13 Kstarted
KCMichael Wacha SP · last 3 starts: 18.1 IP, 2.45 ERA, 13 Kstarted

Starting pitchers are part of our forecast.

Rest and Schedule

before this game
ATH·KC
Aug 16 vs TEX
last game
Aug 16 at LAA
0 days
days of rest
0 days
6
games in last 7 days
6
road after a home game
home / road
home after a road game

For context, not in our forecast.

Team Comparison

2026 season · box-score averages from 124+ games
ATH·KC
−0.34
rating (0 = average)
−0.17
4.4
runs / game
4.1
5.8
runs allowed / game
5.0
49−75
season record
51−74
23−40
home record
29−30
26−35
away record
22−44
W1
streak
W1
4−6
last 10
3−7
8.3
hits / game
8.1
1.20
home runs / game
1.01
3.3
walks drawn / game
3.1
8.6
batter strikeouts / game
8.0
8.5
pitcher strikeouts / game
7.4
0.47
errors / game
0.45

Rating Trend

ATH · KC · 142 days
AthleticsKansas City Royals
Rating (0 = average team)

Head to Head

last 10 meetings · KC 4−6
Apr 30at ATHATH 6 − 3
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

ATH · Last 10

4−6 · streak W1
Aug 16vs TEX5 − 2W
Aug 15vs TEX3 − 5L
Aug 14vs TEX8 − 3W
Aug 12vs TB4 − 8L
Aug 11vs TB4 − 12L
Aug 10vs TB6 − 10L
Aug 9at BOS4 − 3W
Aug 8at BOS7 − 3W
Aug 7at BOS1 − 13L
Aug 6at CIN5 − 6L

KC · Last 10

3−7 · streak W1
Aug 16at LAA3 − 0W
Aug 15at LAA0 − 1L
Aug 14at LAA7 − 6W
Aug 12at LAD2 − 4L
Aug 11at LAD4 − 5L
Aug 10at LAD5 − 6L
Aug 9vs CHC2 − 10L
Aug 8vs CHC6 − 3W
Aug 7vs CHC4 − 6L
Aug 6vs MIN3 − 4L