Saturday, September 5, 2026 at 9:40 PM EDT

MLB

Athletics @ Seattle Mariners

ATH @ SEA

Scheduled

Moneyline

ATH

32%

68%

SEA

+200-244

ML Edge

ATH+25.0%

SEA-25.0%

Total (O/U)

8.0

Fanatics

Over+1.3%

Under-1.3%

Venue

Park Factor

0.94

Pitcher-friendly

Away Starter

Team:Athletics (ATH)

Pitcher:Jeffrey Springs(RHP)

Record:3-13

ERA:6.37

Home Starter

Team:Seattle Mariners (SEA)

Pitcher:George Kirby(RHP)

Record:9-10

ERA:4.19

Betting Insights

Key takeaways for this matchup

ATH ML has a 25.0% edge — the market may be undervaluing them.

Top prop: Randy Arozarena OVER 0.5 batter hits (68% win prob).

Pitching matchup: Jeffrey Springs (6.37 ERA) vs George Kirby (4.19 ERA).

Player Props

50 props available for this game

Batting Props 42

Player	Prop	Line	Odds	Win %	Quality
Randy Arozarena	OVER hits	0.5	-244	68%	53.9
Josh Naylor	OVER hits	0.5	-222	67%	53.3
Julio Rodriguez	OVER hits	0.5	-222	66%	53.1
Dominic Canzone	OVER hits	0.5	-208	65%	52.6
Zack Gelof	UNDER total bases	1.5	-233	66%	48.9
Taylor Ward	UNDER total bases	1.5	-227	65%	48.7
Cole Young	UNDER total bases	1.5	-204	64%	47.9
Henry Bolte	OVER hits	0.5	-182	63%	47.7
Jeff McNeil	OVER hits	0.5	-196	63%	47.7
Jeff McNeil	UNDER total bases	1.5	-196	63%	47.4
Cole Young	OVER hits	0.5	-167	61%	46.5
Josh Naylor	UNDER total bases	1.5	-169	60%	46.1
Zack Gelof	OVER hits	0.5	-161	59%	45.4
Taylor Ward	OVER hits	0.5	-154	59%	45.3
Dominic Canzone	UNDER total bases	1.5	-159	58%	45.1

Pitching Props 8

Player	Prop	Line	Odds	Win %	Quality
George Kirby	UNDER walks	1.5	-233	66%	48.9
Jeffrey Springs	OVER strikeouts	3.5	-161	58%	45.2
Jeffrey Springs	UNDER outs	15.5	-152	57%	44.7
George Kirby	UNDER outs	18.5	-154	57%	44.5
George Kirby	UNDER strikeouts	5.5	-132	55%	43.4
Jeffrey Springs	OVER outs	14.5	-167	60%	41.8
George Kirby	OVER strikeouts	4.5	-161	58%	40.8
Jeffrey Springs	UNDER walks	2.5	-152	56%	40.2

Pitcher Matchup Analysis

Platoon splits, recent form, and times through the order

ESPN Win Probability

ATH

SEA

33.7%66.3%

Jeffrey Springs (ATH)

2026 season

vs SEA

ERA

3.60

5.0

W-L

0-1

WHIP

1.40

AVG

.273

Split	ERA	WHIP	K/9	BB/9	AVG	IP
Overall	6.37	1.50	7.2	3.7	.274	123.0
Home	7.18	1.62	8.4	3.7	.291	67.2
Away	5.37	1.36	5.7	3.6	.251	55.1
Last 7 Days	13.50	1.67	12.9	2.1	.300	4.2
Last 30 Days	7.80	1.60	6.0	3.6	.290	15.0

Opponent Batting by Handedness

Split	AVG	OBP	SLG	OPS	AB	K
vs LHB	.285	.353	.584	.937	137	27
vs RHB	.270	.337	.520	.857	352	71

Times Through Order

Time	AVG	OBP	SLG	OPS	AB	K
1st Time	.260	.345	.410	.755	200	47
2nd Time	.267	.318	.615	.933	195	37
3rd Time	.319	.375	.649	1.024	94	14

George Kirby (SEA)

2026 season

Split	ERA	WHIP	K/9	BB/9	AVG	IP
Overall	4.19	1.35	7.6	2.1	.284	152.2
Home	3.21	1.14	7.8	2.0	.244	87.0
Away	5.48	1.64	7.3	2.3	.332	65.2
Last 7 Days	9.00	1.80	3.6	3.6	.350	5.0
Last 30 Days	6.31	1.75	6.4	3.6	.321	25.2

Opponent Batting by Handedness

Split	AVG	OBP	SLG	OPS	AB	K
vs LHB	.279	.332	.464	.796	319	63
vs RHB	.289	.321	.421	.742	280	65

Times Through Order

Time	AVG	OBP	SLG	OPS	AB	K
1st Time	.300	.333	.457	.791	223	46
2nd Time	.290	.346	.444	.790	214	44
3rd Time	.258	.290	.439	.729	155	35

Last 5 Games

SEA: L W W L L

ATH: L L W W W

Season Series

This Series (4 games)

ATH leads series 2-0

Season (13 games)

Series tied 4-4

Weather

66°F

Condition: 13

Recent Odds

Latest betting lines from various books

Moneyline

Book	Away	Home	Time
Fanatics	+200	-244	12:29 PM
BetUS	+201	-233	12:29 PM
Bovada	+200	-244	12:29 PM
BetRivers	+210	-250	12:29 PM
DraftKings	+202	-250	12:29 PM

Totals

Book	Total	Over	Under	Time
Fanatics	8.0	-115	-105	12:29 PM
BetUS	8.0	-115	-105	12:29 PM
Bovada	7.5	+105	-125	12:29 PM
BetRivers	8.0	-114	-106	12:29 PM
DraftKings	8.0	-115	-105	12:29 PM