Mariners vs. Royals Odds & Betting Predictions - September 18, 2025

Mariners at Royals

6:10 pm • ROOT Sports NW

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Seattle Mariners

@

Kansas City Royals

pitcher		team	era	w-l
S.Kolek			1.83	1-0
L.Castillo			3.77	9-8

MatchupOpenSpreadTotalMoneyline
Mariners 83-69	-1.5	-1.5+131	o9-120	-121
Royals 76-76	u9	+1.5-158	u9-101	+102

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Thursday 6:10 p.m.

September 18, 2025

Kauffman StadiumKansas City

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81°Fahrenheit

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31%Rain

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7Wind

KC +110

0.5u

Over 9-115

0.58u

Bet to 9.5 (-108)

No props found

MLB Public Betting

Royals are 2-3 in their last 5 games.
Royals are 2-3 in their last 5 games against the spread
Royals are 40-35 in their road games against the spread
The totals have gone OVER in 5 of Royals' last 5 games
The totals have gone OVER in 29 of Royals' 77 last games at home

Against the Spread (ATS) History

	overall	home	away	favorite	underdog
Royals	76-76	36-41	40-35	29-36	46-38
Mariners	63-89	34-41	29-48	39-66	23-21

Over/Under History

	overall	home o/u	away o/u	favorite o/u	underdog o/u
Royals	66-85-1	29-48	37-37-1	27-38	39-44-1
Mariners	83-63-6	38-32-5	45-31-1	53-46-6	28-16

Straight-Up (ML) History

	overall	home	away	favorite	underdog
Royals	76-76	41-36	35-40	37-28	37-47
Mariners	83-69	48-27	35-42	60-45	21-23

date	opponent	score	spread	over/under	moneyline
Sep 17th	SEA	W 7-5	-1.5 W	O 8.5	KC -128
Sep 16th	SEA	L 5-12	+1.5 L	O 8.5	SEA +120
Sep 14th	@PHI	W 10-3	+1.5 W	O 8.5	KC +129
Sep 13th	@PHI	L 6-8	-	-	-
Sep 12th	@PHI	L 2-8	+1.5 L	O 9	PHI +120

Kyle Wright
SP
Wright is out with shoulder
Out

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PITCHER		W-L	ERA	WHIP	K/9
RL.Castillo, P		9-8	3.77	1.255	8.01

HITTERS	AVG	OBP	SLG	HR
1R.Arozarena, LF	.240	.341	.439	27
2C.Raleigh, C	.247	.360	.588	56
3J.Rodriguez, CF	.271	.323	.478	30
4J.Naylor, 1B	.269	.309	.455	8
5J.Polanco, 2B	.266	.328	.492	24
6E.Suarez, 3B	.185	.257	.414	10
7D.Canzone, DH	.302	.361	.488	10
8V.Robles, RF	.264	.284	.330	0
9J.Crawford, SS	.264	.352	.367	11

PITCHER		W-L	ERA	WHIP	K/9
RS.Kolek, P		1-0	1.83	0.763	5.03

HITTERS	AVG	OBP	SLG	HR
1M.Yastrzemski, CF	.227	.309	.484	7
2B.Witt, SS	.293	.353	.501	22
3V.Pasquantino, 1B	.264	.322	.469	30
4M.Garcia, 3B	.289	.353	.457	16
5S.Perez, DH	.238	.281	.454	29
6J.Caglianone, RF	.154	.228	.282	6
7J.India, 2B	.235	.326	.344	8
8M.Massey, LF	.221	.245	.275	2
9C.Jensen, C	.304	.448	.652	2

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MatchupOverUnder
Mariners 83-69	N/A	N/A
Royals 76-76	N/A	N/A