Red Sox vs. Mariners Odds & Betting Predictions - June 18, 2025

Red Sox at Mariners

8:10 pm • ROOT Sports NW

Boston Red Sox

38-37

3 - 1

Seattle Mariners

37-35

pitcher		team	era	w-l
L.Castillo			3.29	4-4
G.Crochet			2.24	6-4

MatchupOpenSpreadTotalMoneyline
Red Sox 38-37	-1.5	-1.5+155	o6.5-110	-125
Mariners 37-35	u6.5	+1.5-188	u6.5-106	+100

Wednesday 8:10 p.m.

June 18, 2025

T-Mobile ParkSeattle

SEA +111

Under 7-120

L.Castillo u6.5 Ks-130

0.38u

This is a fair number as the Red Sox own the 4th highest strikeout rate in the Majors at 24%. At the same time we’re seeing Castillo’s strikeout rate drop to a career-low 20% this season, down 4.3 points from last season and 5.8 points from his career average. We’re also seeing him at his highest walk rate since the 2021 season. This is definitely a watered-down Red Sox lineup without Devers/Bregman and several rookies now in it but I’m projecting this closer to 6 strikeouts.

Under 6.5+100

BOS -120

Over 6.5-115

BOS -118

BOS -114

J.Polanco o0.5 HR+850

0.25u

BOS -118

BOS -114

Crochet got us 🤝

BOS -113

0.88u

Under 0.5 (1st Inn)-160

0.31u

G.Crochet o7.5 Ks-149

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No props found

MLB Public Betting

Mariners are 4-1 in their last 5 games.
Mariners are 3-2 in their last 5 games against the spread
Mariners are 14-20 in their road games against the spread
The totals have gone OVER in 2 of Mariners' last 5 games
The totals have gone OVER in 20 of Mariners' 38 last games at home

Against the Spread (ATS) History

	overall	home	away	favorite	underdog
Mariners	30-42	16-22	14-20	14-32	15-9
Red Sox	38-37	19-20	19-17	22-25	16-11

Over/Under History

	overall	home o/u	away o/u	favorite o/u	underdog o/u
Mariners	37-31-4	20-15-3	17-16-1	24-18-4	12-12
Red Sox	34-40-1	15-23-1	19-17	20-26-1	14-13

Straight-Up (ML) History

	overall	home	away	favorite	underdog
Mariners	37-35	20-18	17-17	23-23	13-11
Red Sox	38-37	22-17	16-20	25-22	13-14

date	opponent	score	spread	over/under	moneyline
Jun 18th	BOS	W 8-0	-1.5 W	O 7	SEA -160
Jun 17th	BOS	L 0-2	-1.5 L	U 7	BOS -178
Jun 15th	CLE	W 6-0	-1.5 W	U 8	SEA -120
Jun 15th	CLE	W 4-3	-1.5 L	U 7	SEA -143
Jun 14th	CLE	W 7-2	+1.5 W	O 7.5	SEA -117

Victor Robles
RF
Robles is out with shoulder
Out

Tanner Houck
SP
Houck is out with arm
Out
Patrick Sandoval
SP
Sandoval is out with elbow
Out
Kutter Crawford
SP
Crawford is out with knee
Out
Masataka Yoshida
LF
Yoshida is out with shoulder
Out

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PITCHER	PC	IP	K	ER
LG.Crochet, P	96	6	8	1
RG.Whitlock, P	9	1	1	0
LA.Chapman, P	14	1	1	0
RG.Weissert, P	12	1	0	0

HITTERS	H-AB	R	HR	RBI
1J.Duran, LF	0-4	0	0	0
2A.Toro, 1B	0-4	0	0	0
3R.Anthony, RF	0-2	0	0	0
4R.Gonzalez, DH	0-4	0	0	0
5M.Mayer, 3B	1-3	2	1	1
6T.Story, SS	1-4	1	1	2
7D.Hamilton, 2B	0-3	0	0	0
8K.Campbell, CF	0-3	0	0	0
8C.Rafaela, CF	0-0	0	0	0
9C.Wong, C	1-3	0	0	0

PITCHER	PC	IP	K	ER
RL.Castillo, P	86	6	5	3
RC.Vargas, P	14	1	1	0
LG.Speier, P	12	1	0	0
RE.Bazardo, P	13	1	1	0

HITTERS	H-AB	R
1D.Moore, SS	1-4	0
2J.Rodriguez, CF	0-4	0
3C.Raleigh, DH	1-4	0
4J.Polanco, 2B	0-4	0
5R.Arozarena, LF	1-3	1
6M.Garver, C	1-3	0
6D.Canzone, PH	0-1	0
7D.Solano, 1B	1-3	0
8B.Williamson, 3B	1-3	0
9M.Mastrobuoni, RF	0-3	0