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Arizona Diamondbacks at Seattle Mariners

ARI

ARI

ARI

31-25

PregameSat, 10:10 PM EDT
SEA

SEA

SEA

29-29

ATS/SEA -1.5O/U/7ML/SEA-163

Verdict

Pass · no edge tonight.

The model doesn't see daylight against the posted line on this game. We don't surface negative-EV picks; check the drill-down for sub-model context.

Why this matchup

2 signals · model + market
🤝

Park factor

95 total idx

T-Mobile Park run environment

Park factor boosts run scoring, so contact quality matters more tonight here.

📈

Recent form

8-2

ARI +2.0 vs SEA +1.9 margin

ARI brings the hotter last-ten margin into this matchup tonight with balance.

T-Mobile Park · Seattle, Washington

Line movement

200 snapshots

SEA spread

-1.5

open PK · -1.5

Total

O/U 7.0

open O/U 7.0

SEA no-vig %

59.3%

open 59.3%

+0.5-2.0SEA SPREADO/U 7.5O/U 6.5TOTAL63.3%55.3%SEA NO-VIG %May 29, 2 PMMay 30, 12 AM

Stepped lines reflect captured market snapshots from odds_snapshots. Spread sign convention: negative = SEA favored. Live mode caps the in-game branch to the last 60 minutes.

⤓

Drill down

Sub-model tables · ensemble breakdown · last meeting · book shop · player props

›

Pregame · scouting report

The matchup, end-to-end.

Probable starters, projected lineups, head-to-head this season, our model edge against the market — every angle on one surface.

Away starter

Ryne Nelson

Ryne Nelson

SP · #19

2-3

W-L

4.65

ERA

1.18

WHIP

49

K

60.0

IP

Last 3 starts

vsCOLW(2-3)8.0 IP1 ER3 K
vsSF-7.0 IP3 ER3 K
@TEX-7.0 IP3 ER8 K

Home starter

Bryan Woo

Bryan Woo

SP · #22

4-3

W-L

3.82

ERA

1.04

WHIP

59

K

63.2

IP

Last 3 starts

@KCL(4-3)4.2 IP4 ER4 K
vsCHWW(4-2)6.0 IP0 ER8 K
@HOUW(3-2)6.0 IP2 ER9 K

Vegas line

Spread-1.5
TotalO/U 7
Money+135 / -163

Model edge

Win prob50% / 50%
LeanTossup
ConfidenceTossup

Head to head

SeriesSEA leads series 1-0
TypeCurrent Series

Place a bet

Pick a side.

Even matchup per the model — pick a side and we'll send you to the book.

+135Bet ARI ML↗+135Bet ARI ML↗
-163Bet SEA ML↗-163Bet SEA ML↗

Other markets

-1.5Bet the run line↗-1.5Bet the run line↗
O/U 7Bet the total↗O/U 7Bet the total↗

21+ in most states. Lines refreshed at the moment of fetch. We may earn a referral fee on book signups — your odds and terms are unchanged.

Scouting report · pre-game

SEA vs ARI.

SEA enters on a 4-game win streak; ARI is 8-2 over its last 10.

50.4%

model · SEA win prob

Recent form

  • SEA7–3+1.9
  • ARI8–2+2.0

Situational

  • SEA1d restB2B
  • ARI1d restB2B
  • +0.0d differential

Rest is even. SEA has 0 straight road games; ARI has 4.

Model angle

Weather and park remove about 0.4 runs from the total environment.

  • ▼Weather + park-0.4pp

Players to watch

  • Ketel MarteARI
    3.1total bases · ±1.9

    Ketel Marte · 3.1 TB · last-10 3.9 vs season 1.9.

  • Corbin CarrollARI
    2.6total bases · ±2.9

    Corbin Carroll · 2.6 TB · last-10 3 vs season 2.

  • Julio RodriguezSEA
    2.0total bases · ±1.8

    Julio Rodriguez · 2 TB · last-10 2.2 vs season 1.8.

Head-to-head · 1-0 · last 1

SEA is 1-0 in the recent head-to-head sample.

  • 2026-05-29ARI @ SEA6–7

Line move

open -163→-163flat

The home moneyline has stayed mostly flat.

Aggregated from r107 anatomy · r109 CLV history · r112 calibration · r118 line moves · r124 player projections · refreshes every 5 minutes

Model ensemble · how the prediction is built

3 sub-models, blended.

Each sub-model uses a different rating substrate. Bayesian model averaging weights them by rolling Brier score so the ensemble inherits each model's strengths. Disagreement flags games where the sub-models don't see eye-to-eye — lower confidence, wider band.

50.4%

ensemble · SEA favored

  • Elo Static

    52.3%

    P(SEA win)

    33%

    weight

  • Elo Pitching

    53.2%

    P(SEA win)

    33%

    weight

  • Bullpen Park

    51.4%

    P(SEA win)

    34%

    weight

Disagreement

0.74 pp

weighted σ across sub-models

Confidence

95% · high

maps from disagreement

Substrate count

3 / 3 active

ones with full inputs tonight

Weights recalibrated nightly on a 90-day rolling window with strict point-in-time correctness — no model gets credit for a game it hasn't seen. Headline % is Platt-scaled per league; sub-model rows show raw BMA inputs.

Player projections

SEA vs ARI.

Per-player stat projections built from a recency-weighted blend of the last ten games, season average, and matchup context. Confidence reflects sample size and stability — the top of each list is who to watch.

130

projections · 77 high confidence

Strikeouts

  • Logan GilbertSEA
    5.7± 2.4low
  • Emerson HancockSEA
    5.5± 4.3low
  • Michael SorokaARI
    5.2± 3.5low

Hits

  • Ketel MarteARI
    1.8± 1.0high
  • Corbin CarrollARI
    1.3± 1.2high
  • Tommy TroyARI
    1.3± 0.7low

Total bases

  • Ketel MarteARI
    3.1± 1.9high
  • Corbin CarrollARI
    2.6± 2.9high
  • Julio RodriguezSEA
    2.0± 1.8high

RBIs

  • Ketel MarteARI
    1.3± 1.3high
  • Gabriel MorenoARI
    0.7± 1.1high
  • Randy ArozarenaSEA
    0.7± 1.0high

Earned runs

  • Merrill KellyARI
    3.5± 3.5low
  • Luis CastilloSEA
    3.2± 3.1low
  • Ryne NelsonARI
    2.7± 3.3low

Projections recompute every 30 minutes · prop lines plug in once sportsbook ingest lands

The One modelTossup
Sat, May 30
ARI

ARI

Diamondbacks

32-27

vs50.4%SEA

SEA★

Mariners

31-36

SEA
ARI 49.6%win prob50.4% SEA
SEA 1504 · ARI 1512Box score→

↳ Data via ESPN · MLB Stats API · Baseball Savant

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21+

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Analytical research only · not gambling advice · bet responsibly

Model heartbeat

Cross-sport · last 14 days

60%Last 7 · 63-42
62%Last 30 · 326-201
Receipts →

The receipts

Closing-line value.

0.00

CLV pp

Open price

+135

Close price

+135

Open no-vig

40.7%

Close no-vig

40.7%

Line barely moved

Historical comparables

Games like this · top 6 from 970 candidates

basis · elo_diff + win_prob + day_of_year + total_runs

  • May 24, 26sim 95
    240
    17(H)0
    EloWin probTime of yearTotal runs
  • Apr 28, 26sim 94
    301
    5(H)0
    EloWin probTime of yearTotal runs
  • Apr 26, 26sim 94
    112
    13(H)1
    EloWin probTime of yearTotal runs
  • May 19, 26sim 94
    42
    12(H)1
    EloWin probTime of yearTotal runs
  • May 22, 26sim 93
    240
    17(H)0
    EloWin probTime of yearTotal runs
  • Apr 6, 26sim 92
    172
    28(H)0
    EloWin probTime of yearTotal runs
MLB·Sat, May 30·5/30 - 10:10 PM EDT/SeriesSEA leads series 1-0/VegasSEA -163

Preview · MLB

Arizona Diamondbacks visit Seattle Mariners Saturday at 5/30 - 10:10 PM EDT. ARI is rolling — 10-2 in their last 12. SEA arrives on a 4-game win streak (7-5 in their last 12).

Vegas opened SEA as a 1.5-point favorite with the total at 7.0. SEA's moneyline implies a 62% break-even, ARI the inverse.

For bettors: the SEA side carries the favorite-tax, the dog gets the points and a plus-money payout. The 7.0 total reads defensive vs the league average.

ByTheOnemodel/auto-generated · live odds + scouting data/refreshes with the page

Updated 0s ago

MLB · Arizona Diamondbacks at Seattle Mariners · pregame

MLB · Box score

5/30 - 10:10 PM EDT
ARI31-25
@
SEA29-29
ARI31-25·SEA29-29
ARI

ARI

31-25

0
 Batting
PlayerH-ABABHRBIHRK
 Pitching
PlayerIPHRERBBKHR
SEA

SEA

29-29

0
 Batting
PlayerH-ABABHRBIHRK
 Pitching
PlayerIPHRERBBKHR

Current series

SEA leads series 1-0

May 30ARIARI6@SEASEA7
May 31ARIARI@SEASEAtoday
May 31ARIARI@SEASEAupcoming

Season series

SEA leads series 1-0

May 30ARIARI6@SEASEA7
May 31ARIARI@SEASEAtoday
May 31ARIARI@SEASEAupcoming

Vegas line center

DraftKings via ESPN · 21+

Spread

SEA -1.5

Total

7.0

Defensive · -1.5 vs avg

Moneyline

ARIARI+13543%
SEASEA-16362%

Implied probabilities back-computed from American odds — break-even win % a moneyline bet needs to be +EV.

SpreadBet SEA -1.5↗SpreadBet SEA -1.5↗

Line movement · 200 snapshots

ESPN-tracked · 21+

Spread

1.5

+1.5 since open

Total

7.0

0.0 since open

Pitching matchup · today

ESPN · season stats
ARIARISP
R. Nelson

R. Nelson

#19 · 2-3

ERA

4.65

K

49

SV

—

Last 3 starts

5/24vsCOLCOL8.0 IP · 1 ER · 3 KW(2-3)
5/20vsSFSF7.0 IP · 3 ER · 3 K-
5/14@TEXTEX7.0 IP · 3 ER · 8 K-
VS
SEASEASP
B. Woo

B. Woo

#22 · 4-3

ERA

3.82

K

59

SV

—

Last 3 starts

5/24@KCKC4.2 IP · 4 ER · 4 KL(4-3)
5/19vsCHWCHW6.0 IP · 0 ER · 8 KW(4-2)
5/13@HOUHOU6.0 IP · 2 ER · 9 KW(3-2)

Scouting report

ARI @ SEA

5/30 - 10:10 PM EDT
StorylineSEA on a 4-game roll.

Rest going in

ARIStandard

1 day

last game May 29

SEAStandard

1 day

last game May 29

Model edge vs market

Pass · split signal
Spread

Market

SEA -1.5

Model

ARI -17.3

Edge

split

Total

Market

7.0

Model

On the roadmap

Edge

—

Moneyline

Market

SEA -163

Model

ARI

Edge

fading market

Model spread derived from 21-day power-rank delta · not a true point-spread model. Total + ML model wires roadmap. Bet responsibly · 21+

Tale of the tape

ARImetricSEA

31-25

Record

29-29

#5

Conf rank

#5

+0.3

Pt diff

+0.5

L1

Streak

W4

8-2

Last 10

7-3

73.6

Power score

56.2

#2

Power rank

#8

67.8

Sched ahead

73.6

Bullpen used yesterday

ARI

4.3 bullpen IP · heavy

  • B. Pfaadt1.2 IP31 P
  • T. Clarke0.1 IP4 P
  • J. Loaisiga1.0 IP16 P
  • B. Garcia1.0 IP16 P
  • J. Morillo0.1 IP9 P

L 7-6 · May 29

SEA

4.7 bullpen IP · heavy

  • M. Brash0.2 IP22 P
  • J. Ferrer0.2 IP12 P
  • E. Bazardo1.0 IP27 P
  • G. Speier0.1 IP3 P
  • A. Munoz1.0 IP25 P
  • C. Criswell1.0 IP9 P

W 7-6 · May 29

Composite signals from ESPN standings + 21-day power rolling. NBA pace / ORtg / DRtg from ESPN core team-stats; NFL yards-per-game from nflverse aggregation. Park factors, weather, KenPom-class metrics still on the roadmap.

Team stats

ARI

Away

Stat

SEA

Home

255

Runs

240

453

Hits

435

22

Errors

24

734

TB

724

48

HR

66

169

BB

208

416

K

504

0

LOB

0

Betting line

SEA -1.5·O/U 7·ARI +135/SEA -163

DraftKings · via ESPN