Seattle Mariners vs. Athletics: Luis Castillo Pitches July 28 West Sacramento Opener

Monday, July 28th, 2025

Seattle Mariners at Athletics on 2025-07-28 9:05 PM MLB Game Preview

Game Details

The Seattle Mariners will face the Athletics in the first game of a three-game series on Monday, July 28, 2025, at 9:05 PM PT. The game will be played in West Sacramento, California.

Team Standings

The Seattle Mariners currently hold a 56-50 overall record, placing them second in the AL West. They have a road record of 28-26. The Mariners rank third in the AL with 148 total home runs, averaging 1.4 per game.

The Athletics enter the series with an overall record of 46-62, ranking fifth in the AL West. Their home record stands at 20-31. The Athletics have gone 26-53 in games when they have allowed at least one home run.

Season Series So Far

This will be the eighth meeting between the Mariners and the Athletics this season. The Mariners currently lead the season series 4-3.

Pitching Matchup

Mariners Probable Starter: Luis Castillo

Luis Castillo (7-6) is set to start for the Mariners. He comes into the game with a 3.30 ERA, 1.24 WHIP, and 107 strikeouts.

Athletics Probable Starter: JP Sears

JP Sears (7-8) will take the mound for the Athletics. He holds a 4.98 ERA, 1.25 WHIP, and has recorded 91 strikeouts.

Betting Odds

The Mariners are favored at -132, while the Athletics are the underdog at +110. The over/under for the game is set at 10 runs.

Key Performers

Athletics Key Hitters

Nick Kurtz ranks second on the Athletics with 43 extra-base hits, including 18 doubles, two triples, and 23 home runs. Shea Langeliers has been performing well recently, going 16 for 39 with three doubles, five home runs, and 11 RBI over his last 10 games.

Mariners Key Hitters

Cal Raleigh has tallied 16 doubles and 41 home runs for the Mariners. Julio Rodriguez is also in good form, with four home runs and five RBI in his last 10 games, going 12 for 42.

Recent Form (Last 10 Games)

Athletics

The Athletics have a 5-5 record in their last 10 games. During this stretch, they have a .265 batting average and a 4.13 ERA, outscoring opponents by 13 runs.

Mariners

The Mariners also hold a 5-5 record over their last 10 outings. Their batting average is .200 with a 3.75 ERA, and they have been outscored by 12 runs in these games.

Injuries

Athletics Injury Report

Denzel Clarke (abductor), Max Muncy (hand), Grant Holman (shoulder), Gunnar Hoglund (hip), Jose Leclerc (shoulder), Brady Basso (shoulder), and Luis Medina (elbow) are currently on the injured list for the Athletics.

Mariners Injury Report

The Mariners' injured list includes Bryce Miller (elbow), Collin Snider (forearm), Gregory Santos (knee), Victor Robles (shoulder), and Ryan Bliss (biceps).

In summary

The Seattle Mariners will visit the Athletics for a three-game series opener on July 28, 2025. The Mariners, second in the AL West, hold a 56-50 record, while the Athletics are fifth with a 46-62 record. Mariners' Luis Castillo (3.30 ERA) is set to pitch against Athletics' JP Sears (4.98 ERA). Seattle leads the season series 4-3. Key performers include Cal Raleigh and Julio Rodriguez for the Mariners, and Nick Kurtz and Shea Langeliers for the Athletics. Both teams have a 5-5 record over their last 10 games, with the Mariners favoring power hitting and the Athletics looking to improve their home record. Injury updates include multiple players on the IL for both teams, impacting depth for the upcoming matchup in West Sacramento.

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