Athletics vs. Mariners Odds & Betting Predictions - April 21, 2026

Athletics at Mariners

1:40 am • NBCS-CA

Athletics

27-27

6 - 4

Seattle Mariners

26-29

pitcher		team	era	w-l
E.Hancock			3.07	3-2
J.Ginn			3.19	2-3

MatchupOpenSpreadTotalMoneyline
Athletics 27-27	+1.5	+1.5-170	o8-116	+124
Mariners 26-29	u8.5	-1.5+147	u8-106	-149

Tuesday 1:40 a.m.

April 21, 2026

T-Mobile ParkSeattle

Over 7.5 (Live)-140

Under 9.5 (Live)-110

1.1u

ATH +124

3.72u

📚Onyx

ATH +125

1.25u

SEA -135 (F5)

0.5u

(B365) A bit high - Ginn has some difficulty with LHBs, also see notes on F5 for Hancock

Under 8-102

0.51u

Bet to 7.5 (-105)

Under 8-102

1.25u

ATH +126

1.26u

ATH +130

1.3u

Join Discord. All picks posted before 8am https://discord.gg/HjKxYKdSUy

Under 8.5-120

1.2u

S.Langeliers o0.5 HR+433

1.08u

N.Kurtz o0.5 HR+375

0.94u

ATH +126

0.63u

@Tannerstruth ⭐️⭐️ https://myaction.app/CL26XueLu2b

Under 0.5 (1st Inn)-115

$1.15

Under 4.5 (F5)-105

E.Hancock u17.5 Outs+100

0.5u

J.Ginn u4.5 Ks-115

0.58u

Under 8-105

1.05u

Ginn just 6.4 K-BB% this year (17.3% LY), but keeps the ball on the ground (50%) with weak contact (3.06 xERA), Hancock legit improved (2.77 SIERA/2.80 xERA) - most negative run environment, cool temps.

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No props found

MLB Public Betting

Mariners are 3-2 in their last 5 games.
Mariners are 2-3 in their last 5 games against the spread
Mariners are 10-16 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 14 of Mariners' 29 last games at home

Against the Spread (ATS) History

	overall	home	away	favorite	underdog
Mariners	20-35	10-19	10-16	19-33	1-2
Athletics	29-25	10-13	19-12	6-11	22-13

Over/Under History

	overall	home o/u	away o/u	favorite o/u	underdog o/u
Mariners	24-29-2	14-14-1	10-15-1	24-26-2	0-3
Athletics	25-27-2	14-8-1	11-19-1	9-7-1	15-19-1

Straight-Up (ML) History

	overall	home	away	favorite	underdog
Mariners	26-29	14-15	12-14	25-27	1-2
Athletics	27-27	10-13	17-14	7-10	19-16

date	opponent	score	spread	over/under	moneyline
Apr 19th	TEX	W 5-2	-1.5 W	U 7.5	SEA -140
Apr 18th	TEX	W 7-3	-1.5 W	O 7	SEA -141
Apr 18th	TEX	L 0-5	-1.5 L	U 6.5	TEX -131
Apr 17th	@SD	L 2-5	-1.5 L	U 8.5	SD -122
Apr 16th	@SD	L 6-7	-	O 8	SD -111

Miles Mastrobuoni
3B
Mastrobuoni is out with calf
Out

Gunnar Hoglund
SP
Hoglund is out with back
Out

See more MLB Injuries

PITCHER	PC	IP	K	ER
RJ.Ginn, P	92	5.1	6	3
LH.Harris, P	25	1.2	2	0
RM.Leiter, P	19	1	1	0
RJ.Kuhnel, P	10	1	0	1

HITTERS	H-AB	R	HR	RBI
1N.Kurtz, 1B	1-4	1	1	1
2S.Langeliers, C	1-5	1	1	1
3C.Cortes, DH	4-5	1	1	1
4T.Soderstrom, LF	2-5	1	0	0
5J.Wilson, SS	2-4	1	0	0
6J.McNeil, 2B	1-3	1	0	0
7M.Muncy, 3B	0-2	0	0	1
8L.Butler, RF	2-4	0	0	2
9Z.Gelof, CF	0-4	0	0	0
9D.Clarke, CF	0-0	0	0	0

PITCHER	PC	IP	K	ER
RE.Hancock, P	85	5	3	3
LJ.Ferrer, P	19	1	0	0
RM.Brash, P	15	1	1	0
RC.Legumina, P	23	1	0	3
RC.Criswell, P	9	1	0	0

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