Marcus Semien sits at 99 RBI, and will try to get his 100th when the Texas Rangers (89-71) meet the Seattle Mariners (87-73) at 7:15 PM ET on Saturday.

The Mariners will give the ball to Luis Castillo (14-8, 3.24 ERA), who is eyeing win No. 15 on the season, and the Rangers will counter with Andrew Heaney (10-6, 4.28 ERA).

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Mariners vs. Rangers Pitcher Matchup Info

  • Date: Saturday, September 30, 2023
  • Time: 7:15 PM ET
  • TV: FOX
  • Location: Seattle, Washington
  • Venue: T-Mobile Park
  • Live Stream: Watch this game on Fubo!
  • Probable Pitchers: Castillo - SEA (14-8, 3.24 ERA) vs Heaney - TEX (10-6, 4.28 ERA)

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Read More About This Game

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Mariners vs Rangers Player Props
Mariners vs Rangers Odds
Mariners vs Rangers Prediction
How to Watch Mariners vs Rangers

Mariners Probable Starting Pitcher Tonight: Luis Castillo

  • The Mariners will send Castillo (14-8) to the mound for his 33rd start this season.
  • The right-hander gave up five earned runs in six innings pitched on Tuesday in his last outing, a matchup with the Houston Astros.
  • The 30-year-old has an ERA of 3.24, a 4.22 strikeout-to-walk ratio and a WHIP of 1.065 in 32 games this season.
  • He has earned a quality start 18 times in 32 starts this season.
  • Castillo has pitched five or more innings in 32 straight games and will look to extend that streak.
  • In 32 appearances this season, he has finished nine without allowing an earned run.

Luis Castillo vs. Rangers

  • The Rangers rank third in MLB with 875 runs scored this season. They have a .263 batting average this campaign with 233 home runs (third in the league).
  • The right-hander has allowed the Rangers to go 13-for-47 with three doubles, a home run and four RBI in 12 innings this season.

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Rangers Probable Starting Pitcher Tonight: Andrew Heaney

  • Heaney (10-6 with a 4.28 ERA and 149 strikeouts in 143 2/3 innings pitched) makes the start for the Rangers, his 28th of the season.
  • His most recent time out was in relief on Friday when the lefty threw one scoreless inning against the Seattle Mariners without allowing a hit.
  • The 32-year-old has put up an ERA of 4.28, with 9.4 strikeouts per nine innings in 33 games this season. Opponents are batting .250 against him.
  • Heaney is trying to pick up his eighth quality start of the year in this outing.
  • Heaney has pitched five or more innings in a game 18 times this year entering this game.
  • He will try for his fifth straight appearance without allowing an earned run.

Andrew Heaney vs. Mariners

  • The opposing Mariners offense has a collective .243 batting average, and is 19th in the league with 1321 total hits and 12th in MLB action with 756 runs scored. They have the 15th-ranked slugging percentage (.414) and are 11th in all of MLB with 209 home runs.
  • Heaney has pitched 13 innings, giving up six earned runs on 10 hits while striking out 16 against the Mariners this season.

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