2021 Seattle Mariners season

The 2021 Seattle Mariners season was the 45th season in franchise history. The Mariners played their 22nd full season (23rd overall) at T-Mobile Park, their home ballpark in Seattle, Washington. The M's entered this season with the longest active playoff drought in the four major North American professional sports leagues, attempting to make their first postseason in twenty years. Seattle is the only current Major League Baseball (MLB) franchise without a World Series appearance. Despite posting a 90–72 record, their best since the 2003 season, the Mariners were eliminated from postseason contention for the 20th consecutive season after Boston swept the Washington Nationals to clinch the wild card berth and the Yankees clinched the remaining wild card spot on the last day of the season. This season was the second time during their drought that they’d won two more regular season games than the World Series champions.

2021 Seattle Mariners
League	American League
Division	West
Ballpark	T-Mobile Park
City	Seattle, Washington
Record	90–72 (.556)
Divisional place	2nd
Owners	Baseball Club of Seattle, LP, represented by CEO John Stanton
Managers	Scott Servais
Television	Root Sports Northwest (Dave Sims, Aaron Goldsmith, Mike Blowers)
Radio	ESPN-710 Seattle Mariners Radio Network (Rick Rizzs, Aaron Goldsmith, Dave Sims)
← 2020 Seasons 2022 →

Regular season

In the Mariners' 1–0 loss to the Los Angeles Dodgers on April 20, the two teams combined for three hits, tying the record for the fewest in an interleague game set by the Boston Red Sox and Montreal Expos in 1997.^[1] As that game featured a home run, a double, and a single, and the Mariners/Dodgers games featured just a double and two singles, it broke the record for fewest total bases in a regular-season interleague game.^[2]

Standings

American League West

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• e

AL West

Team	W	L	Pct.	GB	Home	Road
Houston Astros	95	67	.586	—	51‍–‍30	44‍–‍37
Seattle Mariners	90	72	.556	5	46‍–‍35	44‍–‍37
Oakland Athletics	86	76	.531	9	43‍–‍38	43‍–‍38
Los Angeles Angels	77	85	.475	18	40‍–‍42	37‍–‍43
Texas Rangers	60	102	.370	35	36‍–‍45	24‍–‍57

American League Playoff Standings

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• t
• e

Division Leaders

Team	W	L	Pct.
Tampa Bay Rays	100	62	.617
Houston Astros	95	67	.586
Chicago White Sox	93	69	.574

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• e

Wild Card teams
(Top 2 teams qualify for postseason)

Team	W	L	Pct.	GB
Boston Red Sox	92	70	.568	—
New York Yankees	92	70	.568	—
Toronto Blue Jays	91	71	.562	1
Seattle Mariners	90	72	.556	2
Oakland Athletics	86	76	.531	6
Cleveland Indians	80	82	.494	12
Los Angeles Angels	77	85	.475	15
Detroit Tigers	77	85	.475	15
Kansas City Royals	74	88	.457	18
Minnesota Twins	73	89	.451	19
Texas Rangers	60	102	.370	32
Baltimore Orioles	52	110	.321	40

Record against opponents

2021 American League record v t e Source: MLB Standings Grid – 2021
Team	BAL	BOS	CWS	CLE	DET	HOU	KC	LAA	MIN	NYY	OAK	SEA	TB	TEX	TOR	NL
Baltimore	—	6–13	0–7	2–5	2–5	3–3	4–3	2–4	2–4	8–11	3–3	3–4	1–18	4–3	5–14	7–13
Boston	13–6	—	3–4	4–2	3–3	2–5	5–2	3–3	5–2	10–9	3–3	4–3	8–11	3–4	10–9	16–4
Chicago	7–0	4–3	—	10–9	12–7	2–5	9–10	2–5	13–6	1–5	4–3	3–3	3–3	5–1	4–3	14–6
Cleveland	5–2	2–4	9–10	—	12–7	1–6	14–5	5–1	8–11	3–4	2–4	3–4	1–6	4–2	2–5	9–11
Detroit	5–2	3–3	7–12	7–12	—	5–2	8–11	1–6	8–11	3–3	1–6	5–1	4–3	6–1	3–3	11–9
Houston	3–3	5–2	5–2	6–1	2–5	—	3–4	13–6	3–4	2–4	11–8	11–8	4–2	14–5	4–2	9–11
Kansas City	3–4	2–5	10–9	5–14	11–8	4–3	—	2–4	10–9	2–4	2–5	4–3	2–4	2–4	3–4	12–8
Los Angeles	4–2	3–3	5–2	1–5	6–1	6–13	4–2	—	5–2	4–3	4–15	8–11	1–6	11–8	4–3	11–9
Minnesota	4–2	2–5	6–13	11–8	11–8	4–3	9–10	2–5	—	1–6	1–5	2–4	3–3	4–3	3–4	10–10
New York	11–8	9–10	5–1	4–3	3–3	4–2	4–2	3–4	6–1	—	4–3	5–2	8–11	6–1	8–11	12–8
Oakland	3–3	3–3	3–4	4–2	6–1	8–11	5–2	15–4	5–1	3–4	—	4–15	4–3	10–9	2–5	11–9
Seattle	4–3	3–4	3–3	4–3	1–5	8–11	3–4	11–8	4–2	2–5	15–4	—	6–1	13–6	4–2	9–11
Tampa Bay	18–1	11–8	3–3	6–1	3–4	2–4	4–2	6–1	3–3	11–8	3–4	1–6	—	3–4	11–8	15–5
Texas	3–4	4–3	1–5	2–4	1–6	5–14	4–2	8–11	3–4	1–6	9–10	6–13	4–3	—	2–4	7–13
Toronto	14–5	9–10	3–4	5–2	3–3	2–4	4–3	3–4	4–3	11–8	5–2	2–4	8–11	4–2	—	14–6

Updated with the results of all games through October 3, 2021.

Game log

2021 game log: 90–72 (Home: 46–35; Away: 44–37)
April: 15–12 (Home: 7–5; Away: 8–7) # Date Opponent Score Win Loss Save Attendance Record Streak 1 April 1 Giants 8–7 (10) Misiewicz (1–0) Álvarez (0–1) — 8,174 1–0 W1 2 April 2 Giants 3–6 Peralta (1–0) Steckenrider (0–1) McGee (1) 8,392 1–1 L1 3 April 3 Giants 4–0 Flexen (1–0) Webb (0–1) Montero (1) 8,651 2–1 W1 4 April 5 White Sox 0–6 Rodón (1–0) Sheffield (0–1) — 6,436 2–2 L1 5 April 6 White Sox 4–10 Giolito (1–0) Margevicius (0–1) — 7,980 2–3 L2 6 April 7 White Sox 8–4 Vest (1–0) Foster (0–1) — 7,429 3–3 W1 7 April 8 @ Twins 2–10 Berríos (2–0) Gonzales (0–1) — 9,675 3–4 L2 8 April 10 @ Twins 4–3 (10) Graveman (1–0) Rogers (0–1) Middleton (1) 9,817 4–4 W1 9 April 11 @ Twins 8–6 Steckenrider (1–1) Colomé (0–1) Montero (2) 9,792 5–4 W2 – April 12 @ Orioles Postponed (Rain, makeup: April 13) 10 April 13 (1) @ Orioles 4–3 (8) Montero (1–0) Scott (0–1) Graveman (1) N/A 6–4 W3 11 April 13 (2) @ Orioles 6–7 (7) Valdez (2–0) Sadler (0–1) — 4,147 6–5 L1 – April 14 @ Orioles Postponed (Rain, makeup: April 15) 12 April 15 (1) @ Orioles 4–2 (7) Gonzales (1–1) Scott (0–2) Graveman (2) N/A 7–5 W1 13 April 15 (2) @ Orioles 2–1 (7) Dunn (1–0) Zimmermann (1–1) Middleton (2) 5,060 8–5 W2 14 April 16 Astros 6–5 Misiewicz (2–0) Stanek (0–1) — 8,967 9–5 W3 15 April 17 Astros 0–1 Greinke (2–1) Flexen (1–1) Pressly (1) 8,960 9–6 L1 16 April 18 Astros 7–2 Newsome (1–0) Odorizzi (0–2) — 8,959 10–6 W1 17 April 19 Dodgers 4–3 Sheffield (1–1) May (1–1) Montero (3) 8,999 11–6 W2 18 April 20 Dodgers 0–1 Urías (3–0) Gonzales (1–2) Jansen (4) 8,998 11–7 L1 19 April 22 @ Red Sox 7–3 (10) Montero (2–0) Hernández (0–1) — 4,617 12–7 W1 20 April 23 @ Red Sox 5–6 Sawamura (1–0) Kikuchi (0–1) — 4,646 12–8 L1 21 April 24 @ Red Sox 8–2 Flexen (2–1) Eovaldi (3–2) — 4,621 13–8 W1 22 April 25 @ Red Sox 3–5 Rodríguez (4–0) Margevicius (0–2) Barnes (4) 4,510 13–9 L1 23 April 26 @ Astros 2–5 Urquidy (1–2) Sheffield (1–2) Pressly (2) 11,862 13–10 L2 24 April 27 @ Astros 0–2 Javier (3–0) Gonzales (1–3) Pressly (3) 14,413 13–11 L3 25 April 28 @ Astros 5–7 Smith (1–1) Montero (2–1) Stanek (1) 12,707 13–12 L4 26 April 29 @ Astros 1–0 Kikuchi (1–1) García (0–3) Graveman (3) 14,149 14–12 W1 27 April 30 Angels 7–4 Steckenrider (2–1) Heaney (1–2) — 8,632 15–12 W2
May: 13–15 (Home: 10–7; Away: 3–8) # Date Opponent Score Win Loss Save Attendance Record Streak 28 May 1 Angels 5–10 Canning (2–2) Newsome (1–1) — 8,993 15–13 L1 29 May 2 Angels 2–0 Sheffield (2–2) Bundy (0–3) Montero (4) 9,000 16–13 W1 30 May 3 Orioles 3–5 Sulser (1–0) Misiewicz (2–1) Valdez (7) 5,776 16–14 L1 31 May 4 Orioles 5–2 Montero (3–1) Lakins (1–3) — 6,504 17–14 W1 32 May 5 Orioles 0–6 Means (4–0) Kikuchi (1–2) — 6,742 17–15 L1 33 May 7 @ Rangers 5–4 Flexen (3–1) Sborz (3–2) Graveman (4) 26,047 18–15 W1 34 May 8 @ Rangers 8–9 King (4–1) Misiewicz (2–2) Kennedy (10) 26,616 18–16 L1 35 May 9 @ Rangers 2–10 Dunning (2–2) Sheffield (2–3) — 30,632 18–17 L2 36 May 11 @ Dodgers 4–6 Cleavinger (1–3) Montero (3–2) Jansen (6) 15,570 18–18 L3 37 May 12 @ Dodgers 1–7 Urías (5–1) Dunn (1–1) — 15,586 18–19 L4 38 May 13 Indians 2–4 Plesac (3–3) Gilbert (0–1) Shaw (1) 9,880 18–20 L5 39 May 14 Indians 7–3 Flexen (4–1) Civale (5–1) Montero (5) 10,014 19–20 W1 40 May 15 Indians 7–3 Sheffield (3–3) McKenzie (1–2) — 10,311 20–20 W2 41 May 16 Indians 3–2 Sewald (1–0) Bieber (4–3) Graveman (5) 10,287 21–20 W3 42 May 17 Tigers 1–4 Mize (3–3) Kikuchi (1–3) Fulmer (3) 7,201 21–21 L1 43 May 18 Tigers 0–5 Turnbull (3–2) Dunn (1–2) — 6,883 21–22 L2 44 May 19 Tigers 2–6 Skubal (1–6) Gilbert (0–2) — 8.462 21–23 L3 45 May 21 @ Padres 1–16 Paddack (2–3) Flexen (4–2) — 15,250 21–24 L4 46 May 22 @ Padres 4–6 Stammen (3–1) Sheffield (3–4) Melancon (16) 15,250 21–25 L5 47 May 23 @ Padres 2–9 Darvish (5–1) Misiewicz (2–3) — 15,250 21–26 L6 48 May 24 @ Athletics 4–2 Kikuchi (2–3) Montas (5–4) Middleton (3) 3,019 22–26 W1 49 May 25 @ Athletics 4–3 Sewald (2–0) Irvin (3–6) Montero (6) 2,865 23–26 W2 50 May 26 @ Athletics 3–6 Kaprielian (2–0) Dugger (0–1) Diekman (6) 3,571 23–27 L1 51 May 27 Rangers 5–0 Flexen (5–2) Allard (1–1) — 9,008 24–27 W1 52 May 28 Rangers 3–2 Sheffield (4–4) Lyles (2–4) Swanson (1) 10,605 25–27 W2 53 May 29 Rangers 3–2 Zamora (1–0) Foltynewicz (1–5) Montero (7) 11,071 26–27 W3 54 May 30 Rangers 4–2 Kikuchi (3–3) Yang (0–3) Middleton (4) 11,198 27–27 W4 55 May 31 Athletics 6–5 (10) Zamora (2–0) Trivino (2–2) — 11,112 28–27 W5
June: 14–12 (Home: 7–4; Away: 7–8) # Date Opponent Score Win Loss Save Attendance Record Streak 56 June 1 Athletics 6–12 Luzardo (2–3) Sewald (2–1) — 9,160 28–28 L1 57 June 2 Athletics 0–6 Manaea (4–2) Flexen (5–3) — 9,588 28–29 L2 58 June 3 @ Angels 6–2 Sheffield (5–4) Canning (4–4) — 9,714 29–29 W1 59 June 4 @ Angels 2–3 Ohtani (2–1) Santiago (0–1) Iglesias (10) 15,141 29–30 L1 60 June 5 @ Angels 5–12 Cobb (4–2) Steckenrider (2–2) — 15,071 29–31 L2 61 June 6 @ Angels 9–5 Gilbert (1–2) Sandoval (0–2) — 12,833 30–31 W1 62 June 8 @ Tigers 3–5 Boyd (3–6) Gonzales (1–4) Cisnero (2) 9,081 30–32 L1 63 June 9 @ Tigers 9–6 (11) Chargois (1–0) Norris (0–2) — 9,162 31–32 W1 64 June 10 @ Tigers 3–8 Jiménez (1–0) Sheffield (5–5) — 9,290 31–33 L1 65 June 11 @ Indians 0–7 Civale (9–2) Dunn (1–3) — 22,970 31–34 L2 66 June 12 @ Indians 4–5 (10) Karinchak (3–2) Sewald (2–2) — 20,116 31–35 L3 67 June 13 @ Indians 6–2 Gilbert (2–2) Bieber (7–4) — 17,371 32–35 W1 68 June 14 Twins 4–3 Sewald (3–2) Robles (2–3) Steckenrider (1) 9,185 33–35 W2 69 June 15 Twins 10–0 Flexen (6–3) Happ (3–3) — 7,669 34–35 W3 70 June 16 Twins 2–7 Thielbar (1–0) Sheffield (5–6) — 8,098 34–36 L1 71 June 17 Rays 6–5 Santiago (1–1) Fairbanks (1–2) — 9,092 35–36 W1 72 June 18 Rays 5–1 Kikuchi (4–3) Wacha (1–2) — 12,654 36–36 W2 73 June 19 Rays 6–5 (10) Montero (4–2) Feyereisen (3–3) — 14,772 37–36 W3 74 June 20 Rays 6–2 (10) Montero (5–2) Castillo (2–4) — 18,172 38–36 W4 75 June 22 Rockies 2–1 Sewald (4–2) Kinley (1–2) Graveman (6) 12,879 39–36 W5 76 June 23 Rockies 2–5 Márquez (6–6) Sheffield (5–7) Bard (10) 11,141 39–37 L1 77 June 25 @ White Sox 9–3 Kikuchi (5–3) Rodón (6–3) — 32,189 40–37 W1 — June 26 @ White Sox Suspended (Rain, continuation: June 27) 78 June 27 (1) @ White Sox 3–2 Sewald (5–2) Hendriks (3–2) Graveman (7) 30,017 41–37 W2 79 June 27 (2) @ White Sox 5–7 (7) Bummer (1–4) Dugger (0–2) Hendriks (20) 30,017 41–38 L1 80 June 29 @ Blue Jays 3–9 Ray (6–3) Montero (5–3) — 6,736 41–39 L2 81 June 30 @ Blue Jays 9–7 (10) Graveman (2–0) Murphy (0–1) Steckenrider (2) 6,632 42–39 W1
July: 14–10 (Home: 9–7; Away: 5–3) # Date Opponent Score Win Loss Save Attendance Record Streak 82 July 1 @ Blue Jays 7–2 Kikuchi (6–3) Ryu (7–5) Sewald (1) 5,456 43–39 W2 83 July 2 Rangers 5–4 (10) Misiewicz (3–3) Hearn (2–3) — 28,638 44–39 W3 84 July 3 Rangers 3–7 Lyles (4–5) Gonzales (1–5) — 16,046 44–40 L1 85 July 4 Rangers 4–1 Flexen (7–3) Foltynewicz (2–8) Graveman (8) 15,146 45–40 W1 86 July 6 Yankees 1–12 Taillon (4–4) Sheffield (5–8) — 16,547 45–41 L1 87 July 7 Yankees 4–5 Cessa (2–1) Kikuchi (6–4) Green (3) 17,205 45–42 L2 88 July 8 Yankees 4–0 Gilbert (3–2) Montgomery (3–4) — 17,524 46–42 W1 89 July 9 Angels 7–3 Steckenrider (3–2) Mayers (2–4) — 20,381 47–42 W2 90 July 10 Angels 2–0 Flexen (8–3) Sandoval (2–3) Sewald (2) 27,353 48–42 W3 91 July 11 Angels 1–7 Suárez (4–2) Ramírez (0–1) Iglesias (19) 23,348 48–43 L1 – July 13 91st All-Star Game in Denver, CO 92 July 16 @ Angels 6–5 Flexen (9–3) Heaney (5–7) Sewald (3) 40,880 49–43 W1 93 July 17 @ Angels 4–9 Cobb (7–3) Kikuchi (6–5) — 28,927 49–44 L1 94 July 18 @ Angels 7–4 Gilbert (4–2) Sandoval (2–4) — 23,434 50–44 W1 95 July 20 @ Rockies 6–4 Gonzales (2–5) Márquez (8–7) Graveman (9) 30,715 51–44 W2 96 July 21 @ Rockies 3–6 Gomber (7–5) Middleton (0–1) Bard (15) 25,053 51–45 L1 97 July 22 Athletics 1–4 Manaea (7–6) Flexen (9–4) Trivino (16) 18,553 51–46 L2 98 July 23 Athletics 4–3 Sewald (6–2) Diekman (2–2) Graveman (10) 21,312 52–46 W1 99 July 24 Athletics 5–4 Graveman (3–0) Trivino (3–4) — 30,843 53–46 W2 100 July 25 Athletics 4–3 Gonzales (3–5) Irvin (7–9) Steckenrider (3) 21,501 54–46 W3 101 July 26 Astros 11–8 Graveman (4–0) Stanek (1–2) Sewald (4) 15,162 55–46 W4 102 July 27 Astros 6–8 McCullers Jr. (8–2) Flexen (9–5) — 18,930 55–47 L1 103 July 28 Astros 4–11 Odorizzi (4–5) Kikuchi (6–6) — 18,908 55–48 L2 104 July 30 @ Rangers 9–5 Gilbert (5–2) Allard (2–9) — 27,542 56–48 W1 105 July 31 @ Rangers 4–5 (10) Patton (1–1) Castillo (2–5) — 33,463 56–49 L1
August: 15–13 (Home: 6–6; Away: 9–7) # Date Opponent Score Win Loss Save Attendance Record Streak 106 August 1 @ Rangers 3–4 Santana (1–1) Swanson (0–1) — 23,664 56–50 L2 107 August 2 @ Rays 8–2 Flexen (10–5) Wacha (2–3) — 5,855 57–50 W1 108 August 3 @ Rays 4–2 Kikuchi (7–6) Patiño (2–3) Castillo (15) 10,071 58–50 W2 109 August 4 @ Rays 3–4 Fleming (9–5) Gilbert (5–3) Sherriff (1) 9,701 58–51 L1 110 August 5 @ Yankees 3–5 Green (5–5) Sewald (6–3) Chapman (23) 33,211 58–52 L2 111 August 6 @ Yankees 2–3 (11) Abreu (1–0) Middleton (0–2) — 43,180 58–53 L3 112 August 7 @ Yankees 4–5 Heaney (7–8) Misiewicz (3–4) Loáisiga (4) 35,165 58–54 L4 113 August 8 @ Yankees 2–0 Sewald (7–3) Luetge (4–2) Steckenrider (4) 35,437 59–54 W1 114 August 10 Rangers 4–5 (10) Martin (3–3) Swanson (0–2) — 15,412 59–55 L1 115 August 11 Rangers 2–1 Steckenrider (4–2) Santana (1–2) — 15,789 60–55 W1 116 August 12 Rangers 3–1 Gonzales (4–5) Foltynewicz (2–11) — 14,031 61–55 W2 117 August 13 Blue Jays 3–2 Steckenrider (5–2) Cimber (2–4) — 28,207 62–55 W3 118 August 14 Blue Jays 9–3 Middleton (1–2) Ryu (11–6) — 26,090 63–55 W4 119 August 15 Blue Jays 3–8 Matz (10–7) Gilbert (5–4) — 22,679 63–56 L1 120 August 17 @ Rangers 3–1 Anderson (6–8) Hearn (2–4) Sewald (5) 15,140 64–56 W1 121 August 18 @ Rangers 3–1 Gonzales (5–5) Foltynewicz (2–12) Steckenrider (5) 19,119 65–56 W2 122 August 19 @ Rangers 9–8 (11) Smith (2–1) Barlow (0–1) Sewald (6) 16,391 66–56 W3 123 August 20 @ Astros 3–12 McCullers Jr. (10–4) Kikuchi (7–7) — 26,899 66–57 L1 124 August 21 @ Astros 1–15 Odorizzi (6–6) Gilbert (5–5) — 29,908 66–58 L2 125 August 22 @ Astros 6–3 (11) Sewald (8–3) Stanek (1–3) Ramírez (1) 27,526 67–58 W1 126 August 23 @ Athletics 5–3 Misiewicz (4–4) Trivino (5–6) Sewald (7) 4,140 68–58 W2 127 August 24 @ Athletics 5–1 Flexen (11–5) Irvin (9–12) Steckenrider (6) 4,508 69–58 W3 128 August 26 Royals 4–6 Santana (1–1) Smith (2–2) Barlow (9) 16,882 69–59 L1 129 August 27 Royals 7–8 (12) Staumont (3–2) Ramírez (0–2) — 22,953 69–60 L2 130 August 28 Royals 2–4 Payamps (1–3) Anderson (6–9) Barlow (10) 24,575 69–61 L3 131 August 29 Royals 4–3 Gonzales (6–5) Zuber (0–3) Steckenrider (7) 20,044 70–61 W1 132 August 30 Astros 3–4 Maton (4–0) Smith (2–3) Pressly (22) 11,630 70–62 L1 133 August 31 Astros 4–0 Sewald (9–3) Graveman (5–1) — 10,452 71–62 W1
September: 18–8 (Home: 6–4; Away: 12–4) # Date Opponent Score Win Loss Save Attendance Record Streak 134 September 1 Astros 1–0 Sheffield (6–8) Odorizzi (6–7) Sewald (8) 10,519 72–62 W2 135 September 3 @ Diamondbacks 6–5 (10) Sheffield (7–8) Clarke (1–2) Ramírez (2) 12,729 73–62 W3 136 September 4 @ Diamondbacks 8–5 Gonzales (7–5) Smith (4–9) Castillo (16) 18,819 74–62 W4 137 September 5 @ Diamondbacks 10–4 (11) Ramírez (1–2) Clarke (1–3) — 14,408 75–62 W5 138 September 6 @ Astros 2–11 McCullers Jr. (11–4) Kikuchi (7–8) Bielak (1) 25,802 75–63 L1 139 September 7 @ Astros 4–5 (10) Stanek (2–4) Ramírez (1–3) — 20,353 75–64 L2 140 September 8 @ Astros 8–5 Castillo (3–5) Pressly (5–2) — 19,089 76–64 W1 141 September 10 Diamondbacks 5–4 Gonzales (8–5) Bumgarner (7–10) Steckenrider (8) 14,379 77–64 W2 142 September 11 Diamondbacks 3–7 Castellanos (2–1) Flexen (11–6) — 15,483 77–65 L1 143 September 12 Diamondbacks 4–5 Gilbert (2–2) Misiewicz (4–5) Wendelken (1) 13,551 77–66 L2 144 September 13 Red Sox 5–4 Castillo (4–5) Brasier (0–1) Steckenrider (9) 18,219 78–66 W1 145 September 14 Red Sox 4–8 Ottavino (6–3) Smith (2–4) — 19,887 78–67 L1 146 September 15 Red Sox 4–9 (10) Ottavino (7–3) Swanson (0–3) — 17,860 78–68 L2 147 September 17 @ Royals 6–2 Flexen (12–6) Heasley (0–1) — 14,904 79–68 W1 148 September 18 @ Royals 1–8 Bubic (5–6) Kikuchi (7–9) — 20,085 79–69 L1 149 September 19 @ Royals 7–1 Gilbert (6–5) Kowar (0–4) — 16,872 80–69 W1 150 September 20 @ Athletics 4–2 Anderson (7–9) Manaea (10–10) Sewald (9) 4,068 81–69 W2 151 September 21 @ Athletics 5–2 Gonzales (9–5) Blackburn (1–3) Steckenrider (10) 4,246 82–69 W3 152 September 22 @ Athletics 4–1 Flexen (13–6) Irvin (10–14) Steckenrider (11) 4,149 83–69 W4 153 September 23 @ Athletics 6–5 Smith (3–4) Diekman (3–3) Sewald (10) 4,966 84–69 W5 154 September 24 @ Angels 6–5 Smith (4–4) Herget (2–2) Sewald (11) 18,551 85–69 W6 155 September 25 @ Angels 1–14 Díaz (1–0) Anderson (7–10) — 30,221 85–70 L1 156 September 26 @ Angels 5–1 Gonzales (10–5) Quijada (0–2) — 22,057 86–70 W1 157 September 27 Athletics 13–4 Flexen (14–6) Irvin (10–15) — 11,169 87–70 W2 158 September 28 Athletics 4–2 Misiewicz (5–5) Petit (8–3) Steckenrider (12) 12,635 88–70 W3 159 September 29 Athletics 4–2 Castillo (5–5) Chafin (2–4) Steckenrider (13) 17,366 89–70 W4
October: 1–2 (Home: 1–2; Away: 0–0) # Date Opponent Score Win Loss Save Attendance Record Streak 160 October 1 Angels 1–2 Suárez (8–8) Gonzales (10–6) Iglesias (34) 44,169 89–71 L1 161 October 2 Angels 6–4 Sewald (10–3) Cishek (0–2) Steckenrider (14) 44,414 90–71 W1 162 October 3 Angels 3–7 Ortega (1–1) Anderson (7–11) — 44,229 90–72 L1
Legend:        = Win        = Loss        = Postponement Bold = Mariners team member

Roster

2021 Seattle Mariners
Roster
Pitchers 31 Tyler Anderson 27 Matt Andriese 63 Diego Castillo 84 J. T. Chargois 62 Sean Doolittle 30 Robert Dugger 35 Justin Dunn 41 Aaron Fletcher 77 Chris Flexen 36 Logan Gilbert  7 Marco Gonzales 49 Kendall Graveman 18 Yusei Kikuchi 62 Brady Lail 52 Nick Margevicius 45 Darren McCaughan 99 Keynan Middleton 40 Wyatt Mills 38 Anthony Misiewicz 47 Rafael Montero 54 Andrés Muñoz 74 Ljay Newsome 46 Vinny Nittoli 44 James Paxton 55 Yohan Ramírez 45 Yacksel Ríos 65 Casey Sadler 57 Hector Santiago 37 Paul Sewald 33 Justus Sheffield 43 Joe Smith 16 Drew Steckenrider 50 Erik Swanson 45 Domingo Tapia 53 Will Vest 53 Ryan Weber 62 Daniel Zamora		Catchers 78 José Godoy  2 Tom Murphy 29 Cal Raleigh 22 Luis Torrens Infielders  5 Eric Campbell  3 J. P. Crawford 23 Ty France 26 José Marmolejos  8 Jack Mayfield 25 Dylan Moore 13 Jacob Nottingham 15 Kyle Seager 13 Abraham Toro 31,8 Donnie Walton 12 Evan White		Outfielders  5 Jake Bauers  5 Braden Bishop 28 Jake Fraley  0 Sam Haggerty 17 Mitch Haniger 10 Jarred Kelenic  1 Kyle Lewis  4 Shed Long Jr. 27 Dillon Thomas 20 Taylor Trammell Other batters 30 Kevin Padlo		Manager  9 Scott Servais Coaches 14 Manny Acta (third base) 66 Fleming Baez (bullpen catcher) 79 Trent Blank (bullpen) 89 Nasusel Cabrera (batting practice pitcher) 88 Jarret DeHart (assistant hitting)  6 Perry Hill (first base) 21 Tim Laker (hitting) 48 Jared Sandberg (bench) 39 Carson Vitale (field coordinator) 32 Pete Woodworth (pitching)

Statistics

Batting

Stats in bold are the team leaders.

Note: G = Games played; AB = At bats; R = Runs; H = Hits; 2B = Doubles; 3B = Triples; HR = Home runs; RBI = Runs batted in; SB = Stolen bases; BB = Walks; AVG = Batting average; TB = Total bases

Player	G	AB	R	H	2B	3B	HR	RBI	SB	BB	AVG	TB
Mitch Haniger	157	620	110	157	23	2	39	100	1	54	.253	301
JP Crawford	160	619	89	169	37	0	9	54	3	58	.273	233
Kyle Seager	159	603	73	128	29	1	35	101	3	59	.212	264
Ty France	152	571	85	166	32	1	18	73	0	46	.291	254
Luis Torrens	108	346	39	84	16	2	18	47	0	28	.243	149
Jarred Kelenic	93	337	41	61	13	1	14	43	6	36	.181	118
Dylan Moore	126	332	42	60	11	2	12	43	21	40	.181	111
Tom Murphy	97	277	35	56	8	0	11	34	0	40	.202	97
Abraham Toro	60	226	28	57	11	0	5	26	3	22	.252	83
Jake Fraley	78	214	27	45	7	0	9	36	10	46	.210	79
Jake Bauers	72	182	20	40	4	0	2	13	6	18	.220	50
Taylor Trammell	51	156	23	25	7	0	8	18	2	17	.160	56
Cal Raleigh	47	139	6	25	12	0	2	13	0	7	.180	43
Kyle Lewis	36	130	15	32	4	0	5	11	2	16	.246	51
Shed Long Jr.	34	111	13	22	4	1	4	17	1	9	.198	40
José Marmolejos	41	106	11	17	4	0	4	12	0	15	.160	33
Evan White	30	97	8	14	3	0	2	9	0	6	.144	23
Sean Haggerty	35	86	15	16	3	0	2	5	5	6	.186	25
Donovan Walton	24	63	6	13	2	1	2	7	1	4	.206	23
José Godoy	16	37	2	6	1	0	0	3	0	3	.162	7
Jack Mayfield	11	34	2	6	1	0	0	3	0	1	.176	7
Jacob Nottingham	10	26	3	3	0	0	1	2	0	2	.115	6
Eric Campbell	4	11	1	3	0	0	0	0	0	1	.273	3
Dillon Thomas	4	9	2	1	0	0	0	2	0	0	.111	1
Braden Bishop	8	4	1	1	0	0	0	0	0	0	.250	1
Marco Gonzalez	2	4	0	0	0	0	0	0	0	0	.000	0
Chris Flexen	2	3	0	0	0	0	0	0	0	0	.000	0
Justin Dunn	2	3	0	1	1	0	0	1	0	0	.333	2
Tyler Anderson	1	2	0	0	0	0	0	0	0	1	.000	0
Yusei Kikuchi	1	2	0	0	0	0	0	0	0	0	.000	0
Darren McCaughan	1	2	0	0	0	0	0	0	0	0	.000	0
Justus Sheffield	2	2	0	1	0	0	0	0	0	0	.500	1
Kevin Padlo	1	1	0	0	0	0	0	0	0	0	.000	0
Team Totals	162	5355	697	1209	233	11	199	673	64	535	.226	2061

Pitching

Stats in bold are the team leaders.

Note: W = Wins; L = Losses; ERA = Earned run average; G = Games pitched; GS = Games started; SV = Saves; IP = Innings pitched; R = Runs allowed; ER = Earned runs allowed; BB = Walks allowed; K = Strikeouts

Player	W	L	ERA	G	GS	SV	IP	H	R	ER	BB	K
Chris Flexen	14	6	3.61	31	31	0	179.2	185	74	72	40	125
Yusei Kikuchi	7	9	4.41	29	29	0	157.0	145	82	77	62	163
Marco Gonzales	10	6	3.96	25	25	0	143.1	125	64	63	42	108
Logan Gilbert	6	5	4.68	24	24	0	119.1	112	63	62	28	128
Justus Sheffield	7	8	6.83	21	15	0	80.1	105	69	61	43	63
Drew Steckenrider	5	2	2.00	62	0	14	67.2	52	16	15	17	58
Paul Sewald	10	3	3.06	62	0	11	64.2	42	24	22	24	104
Tyler Anderson	2	3	4.81	13	13	0	63.2	71	35	34	13	48
Anthony Misiewicz	5	5	4.61	66	0	0	54.2	61	30	28	15	53
Justin Dunn	1	3	3.75	11	11	0	50.1	37	21	21	29	49
Rafael Montero	5	3	7.27	40	0	7	43.1	56	39	35	15	37
Casey Sadler	0	1	0.67	42	0	0	40.1	19	4	3	10	37
Erik Swanson	0	3	3.31	33	2	1	35.1	28	18	13	10	35
Will Vest	1	0	6.17	32	0	0	35.0	38	25	24	18	27
Kendall Graveman	4	0	0.82	30	0	10	33.0	15	7	3	8	34
Keynan Middleton	1	2	4.94	32	1	4	31.0	30	20	17	19	24
JT Chargois	1	0	3.00	31	0	0	30.0	23	11	10	6	29
Yohan Ramírez	1	3	3.90	25	0	2	27.2	18	14	12	12	35
Hector Santiago	1	1	3.42	13	1	0	26.1	27	10	10	11	30
Robert Dugger	0	2	7.36	12	4	0	25.2	34	24	21	12	19
Diego Castillo	3	1	2.86	24	0	2	22.0	14	9	7	7	26
Joe Smith	3	3	2.00	23	0	0	18.0	12	5	4	4	17
Ljay Newsome	1	1	7.98	7	1	0	14.2	20	14	13	3	16
Wyatt Mills	0	0	9.95	11	0	0	12.2	19	14	14	7	11
Nick Margevicius	0	2	8.25	5	3	0	12.0	13	16	11	7	12
Sean Doolittle	0	0	4.76	11	0	0	11.1	10	6	6	5	12
Matt Andriese	0	0	2.45	8	0	0	11.0	10	6	3	2	12
Darren McCaughan	0	0	8.00	2	1	0	9.0	8	8	8	4	2
Daniel Zamora	2	0	6.23	4	0	0	4.1	5	4	3	1	3
Aaron Fletcher	0	0	12.27	4	0	0	3.2	7	5	5	1	2
Ryan Weber	0	0	6.00	2	0	0	3.0	1	2	2	2	1
Yacksel Ríos	0	0	9.00	3	0	0	3.0	5	3	3	2	2
Domingo Tapia	0	0	0.00	2	0	0	2.0	4	0	0	1	1
Brady Lail	0	0	13.50	2	0	0	2.0	4	3	3	0	1
James Paxton	0	0	6.75	1	1	0	1.1	0	1	1	1	2
Vinny Nittoli	0	0	18.00	1	0	0	1.0	1	2	2	2	1
Andrés Muñoz	0	0	0.00	1	0	0	0.2	0	0	0	2	1
Jack Mayfield	0	0	0.00	1	0	0	0.1	0	0	0	0	0
Team Totals	90	72	4.30	162	162	51	1440.1	1356	748	688	485	1328

Farm system

See also: Minor League Baseball

Level	Team	League	Manager
AAA	Tacoma Rainiers	Triple-A West	Kristopher Negrón
AA	Arkansas Travelers	Double-A Central	Collin Cowgill
High-A	Everett AquaSox	High-A West	Louis Boyd
A	Modesto Nuts	Low-A West	Eric Farris
Rookie	ACL Mariners	Arizona Complex League	Austin Knight
Foreign Rookie	DSL Mariners 1	Dominican Summer League
Foreign Rookie	DSL Mariners 2	Dominican Summer League

References

1. Los Angeles Dodgers at Seattle Mariners (Television production). Root Sports. April 20, 2021. Event occurs at 2:31:10. Retrieved April 21, 2021.
2. "Julio Urias strikes out 11 in Dodgers' 1-hit shutout of Mariners". April 20, 2021.

External links

• Official website
• 2021 Seattle Mariners season at Baseball Reference