Park factor
95 total idx
T-Mobile Park run environment
Park factor boosts run scoring, so contact quality matters more tonight here.

ARI
ARI
31-25

SEA
SEA
29-29
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 + marketLine 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%
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
Probable starters, projected lineups, head-to-head this season, our model edge against the market — every angle on one surface.
Away starter

Ryne Nelson
SP · #19
2-3
W-L
4.65
ERA
1.18
WHIP
49
K
60.0
IP
Last 3 starts
Home starter

Bryan Woo
SP · #22
4-3
W-L
3.82
ERA
1.04
WHIP
59
K
63.2
IP
Last 3 starts
Vegas line
Model edge
Head to head
Place a bet
Even matchup per the model — pick a side and we'll send you to the book.
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 enters on a 4-game win streak; ARI is 8-2 over its last 10.
50.4%
model · SEA win prob
Recent form
Situational
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.
Players to watch
Ketel Marte · 3.1 TB · last-10 3.9 vs season 1.9.
Corbin Carroll · 2.6 TB · last-10 3 vs season 2.
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.
Line move
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
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
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
Hits
Total bases
RBIs
Earned runs
Projections recompute every 30 minutes · prop lines plug in once sportsbook ingest lands
ARI
Diamondbacks
32-27
SEA★
Mariners
31-36
Data via ESPN · MLB Stats API · Baseball Savant
The receipts
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
basis · elo_diff + win_prob + day_of_year + total_runs
Preview · MLB
rizona 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
MLB · Box score


ARI
31-25
| Batting | ||||||
|---|---|---|---|---|---|---|
| Player | H-AB | AB | H | RBI | HR | K |
| Pitching | |||||||
|---|---|---|---|---|---|---|---|
| Player | IP | H | R | ER | BB | K | HR |
SEA
29-29
| Batting | ||||||
|---|---|---|---|---|---|---|
| Player | H-AB | AB | H | RBI | HR | K |
| Pitching | |||||||
|---|---|---|---|---|---|---|---|
| Player | IP | H | R | ER | BB | K | HR |
Current series
SEA leads series 1-0
Season series
SEA leads series 1-0
Vegas line center
DraftKings via ESPN · 21+
Spread
SEA -1.5
Total
7.0
Defensive · -1.5 vs avg
Moneyline
Implied probabilities back-computed from American odds — break-even win % a moneyline bet needs to be +EV.
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
R. Nelson
#19 · 2-3
ERA
4.65
K
49
SV
—
Last 3 starts

B. Woo
#22 · 4-3
ERA
3.82
K
59
SV
—
Last 3 starts
Scouting report
ARI @ SEA
Rest going in
1 day
last game May 29
1 day
last game May 29
Model edge vs market
Pass · split signalMarket
SEA -1.5
Model
ARI -17.3
Edge
split
Market
7.0
Model
On the roadmap
Edge
—
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
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
L 7-6 · May 29
SEA
4.7 bullpen IP · heavy
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