It’s the Arizona Diamondbacks versus the Seattle Mariners at T-Mobile Park on May 29, 2026. Here’s how to watch live on TV.
- Time: 10:10 PM ET
- Location: T-Mobile Park, Seattle, WA
- TV Channels: MLB Network®, MLB Diamondbacks, MLB Seattle Mariners
- Streaming: Arizona Diamondbacks – MLB.TV, Seattle Mariners – MLB.TV
- League Package: MLB Extra Innings®
How to Watch Arizona Diamondbacks vs. Seattle Mariners on May 29, 2026
You can watch the Seattle Mariners take on the Arizona Diamondbacks live on MLB Network® channel 213, MLB Diamondbacks channel 686 and MLB Seattle Mariners channel 687 with DIRECTV on May 29, 2026 at 10:10 PM ET.
Arizona Diamondbacks (31-24) at Seattle Mariners (28-29) — Game Preview
Arizona heads to T-Mobile Park carrying a 31-24 record into a late-night meeting with a 28-29 Seattle club that has spent the spring leaning on its rotation more than its lineup. The contrast in pitching tells the story tonight, with the Mariners sitting at a 3.54 team ERA against a Diamondbacks staff at 4.02. Zac Gallen takes the ball for Arizona at 3-4 with a 4.80 ERA and 40 strikeouts across 54.1 innings, opposite George Kirby, who comes in at 5-4 with a 3.54 ERA and 55 strikeouts over 68.2 innings.
Ildemaro Vargas anchors the visiting lineup as the team’s batting leader at .303 with 7 home runs and 35 RBIs. On the Seattle side, Randy Arozarena gives Kirby a runs-scored cushion to work with by getting on base at a .382 clip while slugging .464. Ketel Marte’s 9 home runs lead the Diamondbacks in that category, giving Kirby a power threat to navigate in the middle innings. Both teams enter with similar offensive profiles, Arizona at .248 and Seattle at .230, which puts the margin squarely on the arms.
Regional Coverage
MLB Diamondbacks, MLB Seattle Mariners
National TV
MLB Network®
Streaming
Arizona Diamondbacks – MLB.TV, Seattle Mariners – MLB.TV
League Packages
What Time is the Arizona Diamondbacks vs. Seattle Mariners Game Today?
The Arizona Diamondbacks vs. Seattle Mariners game starts at 10:10 PM ET.
Where Can I Watch Arizona Diamondbacks vs. Seattle Mariners?
You can watch Arizona Diamondbacks vs. Seattle Mariners on Arizona Diamondbacks – MLB.TV, Seattle Mariners – MLB.TV, MLB Network®, your local regional sports network, MLB Diamondbacks, MLB Seattle Mariners and MLB Extra Innings®.
Arizona Diamondbacks vs. Seattle Mariners Channel on DIRECTV
MLB Diamondbacks (Channel 686), MLB Seattle Mariners (Channel 687)
Players to Watch: Arizona Diamondbacks vs. Seattle Mariners
Arizona Diamondbacks
Ildemaro Vargas — 1B. Vargas is hitting .303 with 7 home runs and 35 RBIs as the Diamondbacks’ top average and run-producing infielder. His .484 slugging percentage gives Arizona a steadying bat to plug into the heart of the order against Seattle’s right-handed starter.
Ketel Marte — 2B. Marte leads Arizona with 9 home runs while hitting .276, the kind of mid-lineup power profile that forces a starter to work around the strike zone. Add 32 RBIs and he’s been the most consistent run producer in the middle of the Diamondbacks order.
Zac Gallen — SP. Tonight’s starter takes the mound at 3-4 with a 4.80 ERA across 54.1 innings, numbers that lag behind his usual standard and put extra weight on every inning against a Mariners lineup that ranks last in average among the two clubs at .230. His 40 strikeouts give him a path through traffic when his command is on, but the 1.44 WHIP suggests Seattle will get baserunners to work with.
Seattle Mariners
Randy Arozarena — LF. Arozarena leads the Mariners’ regulars in batting at .295 and has paired it with a .382 on-base percentage that makes him the table-setter Kirby and the rotation rely on. A .464 slugging line on top of that gives him extra-base juice from the leadoff spot.
Luke Raley — RF. Raley brings the lineup’s biggest power threat with 11 home runs and 29 RBIs, hitting .264 in a year where the Seattle offense has skewed pitcher-first. He’s the right-handed lefty mismatch Arizona has to plan around in the late innings.
George Kirby — SP. Kirby starts for Seattle at 5-4 with a 3.54 ERA, 55 strikeouts and a 1.21 WHIP across 68.2 innings, a rotation-anchor stat line that matches the Mariners’ team ERA almost exactly. He gives Seattle a chance against a Diamondbacks club whose .248 average and 58 home runs lead the matchup in both categories.
Injury Report: Arizona Diamondbacks vs. Seattle Mariners
Arizona Diamondbacks
Pavin Smith (1B) — 60-day IL, left elbow surgery
Jordan Lawlar (LF) — 60-day IL, right wrist fracture
A.J. Puk (RP) — 60-day IL, left elbow surgery
Lourdes Gurriel Jr. (LF) — 10-day IL, left hamstring strain
Corbin Burnes (SP) — 60-day IL, right elbow surgery
James McCann (C) — 10-day IL, right quadriceps strain
Carlos Santana (1B) — 10-day IL, right thigh strain
Justin Martinez (RP) — 60-day IL, right elbow surgery
Cristian Mena (RP) — 60-day IL, right shoulder strain
Blake Walston (SP) — 60-day IL, left elbow surgery
Andrew Saalfrank (RP) — 60-day IL, left shoulder surgery
Seattle Mariners
Miles Mastrobuoni (3B) — 60-day IL, right calf strain
Cal Raleigh (C) — 10-day IL, right oblique strain
Brendan Donovan (3B) — 10-day IL, left groin strain
Logan Evans (SP) — 60-day IL, right elbow surgery
Carlos Vargas (RP) — 60-day IL, right lat strain
Will Wilson (3B) — 10-day IL, left thumb fracture
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