Venue: T‑Mobile Park — Seattle, Washington
First Pitch: 1:10 PM PT / 4:10 PM ET
Broadcast: Bally Sports Arizona / ROOT Sports Northwest / MLB.TV
Probable Pitchers:
ARI: RHP Merrill Kelly (4–3, 3.77 ERA)
SEA: RHP Bryce Miller (5–4, 3.42 ERA)
This is the finale of a tightly contested interleague series, with both teams hovering around the playoff picture and looking to close May with momentum.
VENUE & WEATHER CONDITIONS
T‑Mobile Park — Seattle, WA
Type: Retractable roof
Roof Status: Expected closed due to light morning drizzle
Park Factor: Slightly pitcher‑friendly
Dimensions: 331 LF / 401 CF / 326 RF
Outside Weather (for context)
Temperature: 63–66°F
Wind: 8–12 mph blowing in from left
Rain: 20% early, clearing by game time
Impact: With roof closed, neutral pitching environment
INJURY REPORT
Arizona Diamondbacks
Corbin Carroll — Probable (shoulder)
Ketel Marte — Available
Gabriel Moreno — OUT (hand)
Jordan Montgomery — OUT (elbow)
Paul Sewald — Available
Arizona’s lineup is mostly intact, though missing Moreno’s contact bat.
Seattle Mariners
Julio Rodríguez — Probable (back tightness)
Ty France — Available
J.P. Crawford — OUT (hamstring)
George Kirby — OUT (forearm)
Andrés Muñoz — Available
Seattle’s offense is weakened without Crawford, but the bullpen is healthy.
TEAM RECORDS & RECENT FORM
ARIZONA DIAMONDBACKS (31–26)
Last 10 Games: 5–5
Road Record: 15–14
Most Recent: Lost 6–3 to Seattle (May 30)
Team Strengths
Strong top‑of‑order production
Good team speed
Kelly’s consistency
Improved bullpen depth
Team Weaknesses
Missing Moreno reduces OBP
Inconsistent middle‑order power
Occasional defensive lapses
Struggles vs. elite fastballs
SEATTLE MARINERS (30–29)
Last 10 Games: 6–4
Home Record: 17–12
Most Recent: Won 6–3 vs. Arizona
Team Strengths
Strong rotation (even without Kirby)
Elite bullpen (Muñoz, Brash, Stanek)
Miller pitching well at home
Good defensive metrics
Team Weaknesses
Missing Crawford reduces OBP
High strikeout rate
Inconsistent run production
Heavy reliance on Julio Rodríguez
STARTING PITCHER BREAKDOWN
ARI — RHP MERRILL KELLY
2026 Stats: 4–3, 3.77 ERA, 1.19 WHIP
Last 3 Starts: 18.1 IP, 8 ER, 17 K, 5 BB
Pitch Mix:
Four‑seam (34%)
Changeup (28%)
Cutter (20%)
Curveball (18%)
Matchup Notes
Mariners struggle vs. elite changeups
Kelly’s cutter effective vs. right‑handed bats
Vulnerable to left‑handed power (Cal Raleigh, Dominic Canzone)
Roof closed helps suppress HRs
Edge: Slight to Kelly
⭐ SEA — RHP BRYCE MILLER
2026 Stats: 5–4, 3.42 ERA, 1.18 WHIP
Last 3 Starts: 19.0 IP, 6 ER, 21 K, 4 BB
Pitch Mix:
Four‑seam (95–97 mph) (52%)
Slider (28%)
Splitter (12%)
Curveball (8%)
Matchup Notes
D‑backs struggle vs. high‑velocity fastballs
Miller’s slider neutralizes right‑handed bats
Must avoid Marte + Walker’s pull‑side power
T‑Mobile Park favors his fly‑ball profile
Edge: Miller
KEY PLAYER MATCHUPS
Ketel Marte (ARI) vs. Bryce Miller
Marte vs. 95+ mph: .284 AVG / .511 SLG
Miller’s fastball is elite Advantage: Even
Julio Rodríguez (SEA) vs. Merrill Kelly
Julio vs. changeups: .298 AVG / .540 SLG
Kelly relies heavily on changeup Advantage: Julio
Christian Walker (ARI) vs. Miller
Walker vs. sliders: .271 AVG / .501 SLG
Miller’s slider is sharp but hittable if elevated Advantage: Walker (slightly)
SERIES HISTORY
Last 3 Seasons (2024–2026)
Mariners lead 7–6
At T‑Mobile Park: Mariners lead 4–3
Average combined runs: 8.1 per game
2026 Season Series
Mariners lead 2–0 (6–3 and 6–4 wins)
BETTING TRENDS
Arizona Diamondbacks
4–6 in last 10
Under is 5–3 in last 8
2–6 in last 8 vs. AL West
Seattle Mariners
6–2 in last 8 home games
Under is 6–3 in last 9
5–1 in last 6 vs. teams above .500
Head‑to‑Head Trends
Mariners are 5–1 in last 6 meetings
Under is 4–2 in last 6 at T‑Mobile Park
Game Odds
Arizona Diamondbacks 7.5
Seattle Mariners ` – 145
Odds Courtesy of Sports Odds Direct as of Saturday, May 30, 2026
