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Seattle Mariners vs Kansas City Royals — May 23, 2026 Odds

See methodology for grading rules and ROI calculation.

MLBSAT, MAY 23, 20263:11 PM CT
AwayMariners24-27-142
HomeRoyals20-30+120
Spread
Mariners −1.5
Total
8.5
Moneyline
Mariners -142/Royals +120
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Pre-Game Notes1 note

KCR
Lost 3 straight
Royals cold

Consensus Lines

Spread
Total
ML
-1.5(+115)
O8.5
-142
+1.5(-138)
U8.5
+120

Starting PitchersProbable

Mariners
George Kirby
George Kirby
3.45 ERA5-362.2 IP52 K1.18 WHIP
Royals
Stephen Kolek
Stephen Kolek
4.24 ERA2-017.0 IP12 K1.00 WHIP

ScoringSeason · per game

RPG
Scored
OPP
Allowed
MARGIN
Per game
Mariners
4.1★
3.9★
+0.2★
Royals
3.9
4.5
-0.6
Edge
Mariners +0.2
Mariners +0.6
Mariners +0.8
Last 10 · Trend
Mariners
4.3avg
Royals
2.8avg

Recent FormLast 10

Straight-Up
Mariners
5-550%
W
W
L
W
L
L
L
W
L
W
RoyalsL3
1-910%
L
L
L
L
L
L
W
L
L
L
Against the Spread
Mariners
4-640%
W
W
L
W
L
L
L
W
L
L
Royals
2-820%
L
L
L
L
L
L
W
L
L
W

Season Records2026 · 51g / 50g

Team
SU
ATS
O/U
Mariners
Overall
47%24-27
35%18-33
47%23-26
Royals
Overall
40%20-30
40%20-30
45%22-27

Matchup VenueRoad / Home splits

Team
SU
ATS
O/U
Mariners
On Road
45%10-12
36%8-14
38%8-13
Royals
At Home
50%13-13
46%12-14
54%14-12

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