2021 Seattle Mariners

Major League Baseball » Seattle Mariners » 2021

Season Overview

90-72 Missed Playoffs
Record Outcome

2021 Seattle Mariners

What was the record of the 2021 Seattle Mariners?

The Seattle Mariners finished the regular season with a 90-72 record. They went 46-35 at home and 44-37 on the road.

What division did the 2021 Seattle Mariners play in?

The 2021 Seattle Mariners played in the West Division of the American League.

What was the division record of the 2021 Seattle Mariners?

During the regular season, the 2021 Seattle Mariners went 47-29 against their AL West opponents.

What was the 2021 Seattle Mariners record against each of their divisional opponents?

Opponent Record Win Percentage % Run Differential
Oakland Athletics 15-4 78.9% +17
Texas Rangers 13-6 68.4% +10
Los Angeles Angels 11-8 57.9% -12
Houston Astros 8-11 42.1% -30

What was the 2021 Seattle Mariners record by month?

Among qualifying months, the 2021 Seattle Mariners had their best month in September, when they went 18-8 and had a 69.2% win percentage. Their worst month was May, when they went 13-15 and had a 46.4% win percentage.

Month Record Win Percentage % Run Differential
April 15-12 55.6% +1
May 13-15 46.4% -43
June 14-12 53.8% -5
July 14-10 58.3% -8
August 15-13 53.6% -2
September 18-8 69.2% +9
October 1-2 33.3% -3

Did the 2021 Seattle Mariners make the Postseason?

No, the Mariners didn't make the Postseason in 2021.

What was the run differential for the 2021 Seattle Mariners?

The Seattle Mariners finished the regular season with a run differential of -51. Based on their run differential and their pythagorean expectation, the Mariners could have been expected to have about 75.8 wins, or a 76-86 record in the regular season.

How did the 2021 Seattle Mariners perform in one-run games?

In one-run games, or games that went into extra innings, the 2021 Seattle Mariners went 39-20.

How did the 2021 Seattle Mariners perform in extra inning games?

During the regular season, the 2021 Seattle Mariners went 13-7 in extra inning games.

What was the longest win streak for the 2021 Seattle Mariners?

The longest win streak during the regular season for the 2021 Seattle Mariners was a 6 game winning streak.

What was the longest losing streak for the 2021 Seattle Mariners?

The longest losing streak that the Seattle Mariners had during the 2021 regular season was 6 games, which happened once during the season.

2021 Seattle Mariners Schedule

= Playoff Team

Bold = Division Opponent

Date Opponent Score
Regular Season
Thu, Apr 1, 2021 vs San Francisco Giants Win 8 - 7 (10)
Fri, Apr 2, 2021 vs San Francisco Giants Loss 3 - 6
Sat, Apr 3, 2021 vs San Francisco Giants Win 4 - 0
Mon, Apr 5, 2021 vs Chicago White Sox Loss 0 - 6
Tue, Apr 6, 2021 vs Chicago White Sox Loss 4 - 10
Wed, Apr 7, 2021 vs Chicago White Sox Win 8 - 4
Thu, Apr 8, 2021 @ Minnesota Twins Loss 2 - 10
Sat, Apr 10, 2021 @ Minnesota Twins Win 4 - 3 (10)
Sun, Apr 11, 2021 @ Minnesota Twins Win 8 - 6
Tue, Apr 13, 2021 @ Baltimore Orioles Win 4 - 3
Tue, Apr 13, 2021 @ Baltimore Orioles Loss 6 - 7
Thu, Apr 15, 2021 @ Baltimore Orioles Win 4 - 2
Thu, Apr 15, 2021 @ Baltimore Orioles Win 2 - 1
Fri, Apr 16, 2021 vs Houston Astros Win 6 - 5
Sat, Apr 17, 2021 vs Houston Astros Loss 0 - 1
Sun, Apr 18, 2021 vs Houston Astros Win 7 - 2
Mon, Apr 19, 2021 vs Los Angeles Dodgers Win 4 - 3
Tue, Apr 20, 2021 vs Los Angeles Dodgers Loss 0 - 1
Thu, Apr 22, 2021 @ Boston Red Sox Win 7 - 3 (10)
Fri, Apr 23, 2021 @ Boston Red Sox Loss 5 - 6
Sat, Apr 24, 2021 @ Boston Red Sox Win 8 - 2
Sun, Apr 25, 2021 @ Boston Red Sox Loss 3 - 5
Mon, Apr 26, 2021 @ Houston Astros Loss 2 - 5
Tue, Apr 27, 2021 @ Houston Astros Loss 0 - 2
Wed, Apr 28, 2021 @ Houston Astros Loss 5 - 7
Thu, Apr 29, 2021 @ Houston Astros Win 1 - 0
Fri, Apr 30, 2021 vs Los Angeles Angels Win 7 - 4
Sat, May 1, 2021 vs Los Angeles Angels Loss 5 - 10
Sun, May 2, 2021 vs Los Angeles Angels Win 2 - 0
Mon, May 3, 2021 vs Baltimore Orioles Loss 3 - 5
Tue, May 4, 2021 vs Baltimore Orioles Win 5 - 2
Wed, May 5, 2021 vs Baltimore Orioles Loss 0 - 6
Fri, May 7, 2021 @ Texas Rangers Win 5 - 4
Sat, May 8, 2021 @ Texas Rangers Loss 8 - 9
Sun, May 9, 2021 @ Texas Rangers Loss 2 - 10
Tue, May 11, 2021 @ Los Angeles Dodgers Loss 4 - 6
Wed, May 12, 2021 @ Los Angeles Dodgers Loss 1 - 7
Thu, May 13, 2021 vs Cleveland Indians Loss 2 - 4
Fri, May 14, 2021 vs Cleveland Indians Win 7 - 3
Sat, May 15, 2021 vs Cleveland Indians Win 7 - 3
Sun, May 16, 2021 vs Cleveland Indians Win 3 - 2
Mon, May 17, 2021 vs Detroit Tigers Loss 1 - 4
Tue, May 18, 2021 vs Detroit Tigers Loss 0 - 5
Wed, May 19, 2021 vs Detroit Tigers Loss 2 - 6
Fri, May 21, 2021 @ San Diego Padres Loss 1 - 16
Sat, May 22, 2021 @ San Diego Padres Loss 4 - 6
Sun, May 23, 2021 @ San Diego Padres Loss 2 - 9
Mon, May 24, 2021 @ Oakland Athletics Win 4 - 2
Tue, May 25, 2021 @ Oakland Athletics Win 4 - 3
Wed, May 26, 2021 @ Oakland Athletics Loss 3 - 6
Thu, May 27, 2021 vs Texas Rangers Win 5 - 0
Fri, May 28, 2021 vs Texas Rangers Win 3 - 2
Sat, May 29, 2021 vs Texas Rangers Win 3 - 2
Sun, May 30, 2021 vs Texas Rangers Win 4 - 2
Mon, May 31, 2021 vs Oakland Athletics Win 6 - 5 (10)
Tue, Jun 1, 2021 vs Oakland Athletics Loss 6 - 12
Wed, Jun 2, 2021 vs Oakland Athletics Loss 0 - 6
Thu, Jun 3, 2021 @ Los Angeles Angels Win 6 - 2
Fri, Jun 4, 2021 @ Los Angeles Angels Loss 2 - 3
Sat, Jun 5, 2021 @ Los Angeles Angels Loss 5 - 12
Sun, Jun 6, 2021 @ Los Angeles Angels Win 9 - 5
Tue, Jun 8, 2021 @ Detroit Tigers Loss 3 - 5
Wed, Jun 9, 2021 @ Detroit Tigers Win 9 - 6 (11)
Thu, Jun 10, 2021 @ Detroit Tigers Loss 3 - 8
Fri, Jun 11, 2021 @ Cleveland Indians Loss 0 - 7
Sat, Jun 12, 2021 @ Cleveland Indians Loss 4 - 5 (10)
Sun, Jun 13, 2021 @ Cleveland Indians Win 6 - 2
Mon, Jun 14, 2021 vs Minnesota Twins Win 4 - 3
Tue, Jun 15, 2021 vs Minnesota Twins Win 10 - 0
Wed, Jun 16, 2021 vs Minnesota Twins Loss 2 - 7
Thu, Jun 17, 2021 vs Tampa Bay Rays Win 6 - 5
Fri, Jun 18, 2021 vs Tampa Bay Rays Win 5 - 1
Sat, Jun 19, 2021 vs Tampa Bay Rays Win 6 - 5 (10)
Sun, Jun 20, 2021 vs Tampa Bay Rays Win 6 - 2 (10)
Tue, Jun 22, 2021 vs Colorado Rockies Win 2 - 1
Wed, Jun 23, 2021 vs Colorado Rockies Loss 2 - 5
Fri, Jun 25, 2021 @ Chicago White Sox Win 9 - 3
Sat, Jun 26, 2021 @ Chicago White Sox Win 3 - 2
Sun, Jun 27, 2021 @ Chicago White Sox Loss 5 - 7
Tue, Jun 29, 2021 @ Toronto Blue Jays Loss 3 - 9
Wed, Jun 30, 2021 @ Toronto Blue Jays Win 9 - 7 (10)
Thu, Jul 1, 2021 @ Toronto Blue Jays Win 7 - 2
Fri, Jul 2, 2021 vs Texas Rangers Win 5 - 4 (10)
Sat, Jul 3, 2021 vs Texas Rangers Loss 3 - 7
Sun, Jul 4, 2021 vs Texas Rangers Win 4 - 1
Tue, Jul 6, 2021 vs New York Yankees Loss 1 - 12
Wed, Jul 7, 2021 vs New York Yankees Loss 4 - 5
Thu, Jul 8, 2021 vs New York Yankees Win 4 - 0
Fri, Jul 9, 2021 vs Los Angeles Angels Win 7 - 3
Sat, Jul 10, 2021 vs Los Angeles Angels Win 2 - 0
Sun, Jul 11, 2021 vs Los Angeles Angels Loss 1 - 7
Fri, Jul 16, 2021 @ Los Angeles Angels Win 6 - 5
Sat, Jul 17, 2021 @ Los Angeles Angels Loss 4 - 9
Sun, Jul 18, 2021 @ Los Angeles Angels Win 7 - 4
Tue, Jul 20, 2021 @ Colorado Rockies Win 6 - 4
Wed, Jul 21, 2021 @ Colorado Rockies Loss 3 - 6
Thu, Jul 22, 2021 vs Oakland Athletics Loss 1 - 4
Fri, Jul 23, 2021 vs Oakland Athletics Win 4 - 3
Sat, Jul 24, 2021 vs Oakland Athletics Win 5 - 4
Sun, Jul 25, 2021 vs Oakland Athletics Win 4 - 3
Mon, Jul 26, 2021 vs Houston Astros Win 11 - 8
Tue, Jul 27, 2021 vs Houston Astros Loss 6 - 8
Wed, Jul 28, 2021 vs Houston Astros Loss 4 - 11
Fri, Jul 30, 2021 @ Texas Rangers Win 9 - 5
Sat, Jul 31, 2021 @ Texas Rangers Loss 4 - 5 (10)
Sun, Aug 1, 2021 @ Texas Rangers Loss 3 - 4
Mon, Aug 2, 2021 @ Tampa Bay Rays Win 8 - 2
Tue, Aug 3, 2021 @ Tampa Bay Rays Win 4 - 2
Wed, Aug 4, 2021 @ Tampa Bay Rays Loss 3 - 4
Thu, Aug 5, 2021 @ New York Yankees Loss 3 - 5
Fri, Aug 6, 2021 @ New York Yankees Loss 2 - 3 (11)
Sat, Aug 7, 2021 @ New York Yankees Loss 4 - 5
Sun, Aug 8, 2021 @ New York Yankees Win 2 - 0
Tue, Aug 10, 2021 vs Texas Rangers Loss 4 - 5 (10)
Wed, Aug 11, 2021 vs Texas Rangers Win 2 - 1
Thu, Aug 12, 2021 vs Texas Rangers Win 3 - 1
Fri, Aug 13, 2021 vs Toronto Blue Jays Win 3 - 2
Sat, Aug 14, 2021 vs Toronto Blue Jays Win 9 - 3
Sun, Aug 15, 2021 vs Toronto Blue Jays Loss 3 - 8
Tue, Aug 17, 2021 @ Texas Rangers Win 3 - 1
Wed, Aug 18, 2021 @ Texas Rangers Win 3 - 1
Thu, Aug 19, 2021 @ Texas Rangers Win 9 - 8 (11)
Fri, Aug 20, 2021 @ Houston Astros Loss 3 - 12
Sat, Aug 21, 2021 @ Houston Astros Loss 1 - 15
Sun, Aug 22, 2021 @ Houston Astros Win 6 - 3 (11)
Mon, Aug 23, 2021 @ Oakland Athletics Win 5 - 3
Tue, Aug 24, 2021 @ Oakland Athletics Win 5 - 1
Thu, Aug 26, 2021 vs Kansas City Royals Loss 4 - 6
Fri, Aug 27, 2021 vs Kansas City Royals Loss 7 - 8 (12)
Sat, Aug 28, 2021 vs Kansas City Royals Loss 2 - 4
Sun, Aug 29, 2021 vs Kansas City Royals Win 4 - 3
Mon, Aug 30, 2021 vs Houston Astros Loss 3 - 4
Tue, Aug 31, 2021 vs Houston Astros Win 4 - 0
Wed, Sep 1, 2021 vs Houston Astros Win 1 - 0
Fri, Sep 3, 2021 @ Arizona Diamondbacks Win 6 - 5 (10)
Sat, Sep 4, 2021 @ Arizona Diamondbacks Win 8 - 5
Sun, Sep 5, 2021 @ Arizona Diamondbacks Win 10 - 4 (11)
Mon, Sep 6, 2021 @ Houston Astros Loss 2 - 11
Tue, Sep 7, 2021 @ Houston Astros Loss 4 - 5 (10)
Wed, Sep 8, 2021 @ Houston Astros Win 8 - 5
Fri, Sep 10, 2021 vs Arizona Diamondbacks Win 5 - 4
Sat, Sep 11, 2021 vs Arizona Diamondbacks Loss 3 - 7
Sun, Sep 12, 2021 vs Arizona Diamondbacks Loss 4 - 5
Mon, Sep 13, 2021 vs Boston Red Sox Win 5 - 4
Tue, Sep 14, 2021 vs Boston Red Sox Loss 4 - 8
Wed, Sep 15, 2021 vs Boston Red Sox Loss 4 - 9 (10)
Fri, Sep 17, 2021 @ Kansas City Royals Win 6 - 2
Sat, Sep 18, 2021 @ Kansas City Royals Loss 1 - 8
Sun, Sep 19, 2021 @ Kansas City Royals Win 7 - 1
Mon, Sep 20, 2021 @ Oakland Athletics Win 4 - 2
Tue, Sep 21, 2021 @ Oakland Athletics Win 5 - 2
Wed, Sep 22, 2021 @ Oakland Athletics Win 4 - 1
Thu, Sep 23, 2021 @ Oakland Athletics Win 6 - 5
Fri, Sep 24, 2021 @ Los Angeles Angels Win 6 - 5
Sat, Sep 25, 2021 @ Los Angeles Angels Loss 1 - 14
Sun, Sep 26, 2021 @ Los Angeles Angels Win 5 - 1
Mon, Sep 27, 2021 vs Oakland Athletics Win 13 - 4
Tue, Sep 28, 2021 vs Oakland Athletics Win 4 - 2
Wed, Sep 29, 2021 vs Oakland Athletics Win 4 - 2
Fri, Oct 1, 2021 vs Los Angeles Angels Loss 1 - 2
Sat, Oct 2, 2021 vs Los Angeles Angels Win 6 - 4
Sun, Oct 3, 2021 vs Los Angeles Angels Loss 3 - 7

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