Seattle Mariners Bring Historic Marks into New Series with Cincinnati Reds

The Mariners and Reds are set for a three-game set in Cincinnati this week as Seattle comes in winners of five of its last six.

Seattle Mariners center fielder Julio Rodriguez beats the throw to Cincinnati Reds shortstop Elly De La Cruz to steal second base during the seventh inning at T-Mobile Park. All players wore #42 in honor of Jackie Robinson Day. | Steven Bisig-Imagn Images

The Seattle Mariners open up a three-game series with the Cincinnati Reds on Tuesday night after winning five of six games on their last homestand.

Seattle took two of three from the Houston Astros and swept the Texas Rangers en route to an 8-8 record. The Reds are also 8-8.

The Mariners and Reds certainly have some intertwined history, with several players having played for both rosters. Ken Griffey Jr., arguably the best player in M's history, played with the Reds from 2000-2008 before returning back to Seattle in 2009. Mike Cameron played with the Reds in 1999 before getting traded for Griffey in 2000. Furthermore, Luis Castillo, who will start for the Mariners on Tuesday, began his career in Cincinnati.

But beyond roster spots, the two teams also share some unique history, as noted by the Mariners PR group:

.,,the Mariners are 19-5 (.792) all-time against the Cincinnati Reds, the best winning percentage against any single opponent in franchise history?...the .792 winning percentage ranks ahead of their record against the New York Mets (16-8/.667) and Arizona Diamondbacks (26-16/.619),

The Mariners .792 winning percentage against the Reds is also the best mark in baseball history for one team against another.

Highest winning percentage all-time against any opponent in @MLB:

🔹 @Mariners vs. Reds (.792/19-5)
🔹 Red Sox vs. Reds (.739/17-6)
🔹 Braves vs. Athletics (.720/18-7)
🔹 Yankees vs. Cubs (.720/18-7)

Game Notes:

— Mariners PR (@MarinersPR) April 15, 2025

Castillo will take the hill on Tuesday against left-hander Nick Lodolo, who has an ERA of 0.96 on the season. While the lineup is not officially out as of this posting, it's highly likely that third baseman Ben Williamson makes his major league debut after being promoted on Sunday.

First pitch is 3:40 p.m. PT.

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