Red Sox vs. Mariners Odds & Betting Predictions - June 21, 2026

Red Sox at Mariners

2:10 am • NESN

Boston Red Sox

30-43

5 - 1

Seattle Mariners

39-38

pitcher		team	era	w-l
E.Hancock			3.28	5-3
C.Early			3.81	5-5

MatchupOpenSpreadTotalMoneyline
Red Sox 30-43	+1.5	+1.5-205	o7-120	+105
Mariners 39-38	u7.5	-1.5+175	u7+100	-128

Sunday 2:10 a.m.

June 21, 2026

T-Mobile ParkSeattle

E.Hancock u17.5 Outs+125

1.06u

J.Duran o0.5 HR+485

0.25u

W.Abreu o0.5 HR+475

2.38u

E.Hancock u17.5 Outs+120

0.5u

C.Early u5.5 Ks+124

0.4u

Under 7.5-120

0.5u

C.Early o6.5 Ks+120

Under 7.5-125

J.Rodriguez To Hit 1+ Home Runs Yes+435

Under 7.5-115

0.5u

Bet to 7 (-105)

C.Early o5.5 Ks-154

0.56u

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No props found

MLB Public Betting

Mariners are 2-3 in their last 5 games.
Mariners are 2-3 in their last 5 games against the spread
Mariners are 15-23 in their road games against the spread
The totals have gone OVER in 3 of Mariners' last 5 games
The totals have gone OVER in 19 of Mariners' 39 last games at home

Against the Spread (ATS) History

	overall	home	away	favorite	underdog
Mariners	29-48	14-25	15-23	27-44	2-4
Red Sox	29-44	12-25	17-19	17-29	11-15

Over/Under History

	overall	home o/u	away o/u	favorite o/u	underdog o/u
Mariners	37-37-3	19-19-1	18-18-2	35-33-3	2-4
Red Sox	33-37-3	13-22-2	20-15-1	20-24-2	13-12-1

Straight-Up (ML) History

	overall	home	away	favorite	underdog
Mariners	39-38	21-18	18-20	37-34	2-4
Red Sox	30-43	12-25	18-18	19-27	10-16

date	opponent	score	spread	over/under	moneyline
Jun 20th	BOS	L 2-6	+1.5 L	O 6.5	BOS -116
Jun 18th	BAL	W 3-0	-1.5 W	U 7.5	SEA -129
Jun 18th	BAL	L 3-5	-1.5 L	O 7.5	BAL -135
Jun 17th	BAL	W 3-1	-1.5 W	U 7.5	SEA -150
Jun 14th	@WSH	L 1-10	-1.5 L	O 10.5	WSH -132

Tanner Houck
SP
Houck is out with arm
Out
Triston Casas
1B
Casas is out with knee
Out
Patrick Sandoval
SP
Sandoval is out with elbow
Out
Kutter Crawford
SP
Crawford is out with wrist
Out
Romy Gonzalez
1B
Gonzalez is out with shoulder
Out

See more MLB Injuries

PITCHER	PC	IP	K	ER
LC.Early, P	98	6	7	1
RT.Guerrero, P	14	1	2	0
RG.Whitlock, P	15	1	1	0
LD.Coulombe, P	5	1	0	0

HITTERS	H-AB	R	HR	RBI
1A.Seigler, 2B	1-4	1	0	0
1A.Monasterio, 2B	0-1	0	0	0
2M.Yoshida, DH	1-4	0	0	0
3W.Abreu, RF	1-3	2	1	2
4W.Contreras, 1B	0-2	1	0	0
5J.Duran, LF	0-4	1	0	0
6C.Durbin, 3B	2-4	0	0	1
7M.Mayer, SS	1-4	0	0	1
8C.Narvaez, C	0-3	0	0	0
9N.Eaton, CF	0-3	0	0	0

PITCHER	PC	IP	K	ER
RE.Hancock, P	76	5.1	6	5
LJ.Ferrer, P	18	0.2	0	0
RN.Davila, P	24	1	1	0
RM.Rucker, P	15	1	2	0
RA.Hoppe, P	14	1	2	0

HITTERS	H-AB	R	RBI
1J.Crawford, 3B	0-3	1	0
2C.Raleigh, C	1-3	0	0
3J.Rodriguez, CF	0-3	0	0
4J.Naylor, 1B	1-4	0	1
5R.Refsnyder, RF	0-3	0	0
5R.Refsnyder, LF	0-3	0	0
6C.Young, 2B	0-3	0	0
7M.Garver, DH	0-2	0	0
7L.Raley, PH	0-1	0	0
7L.Raley, DH	0-1	0	0
8C.Joe, LF	0-2	0	0
8D.Canzone, PH	0-1	0	0
8D.Canzone, RF	0-1	0	0
9C.Emerson, SS	0-3	0	0