Ratings Reference
Teams

Seattle Mariners

34 telecasts with figures · 37 published claims
34
telecasts on the record
updated 2026-10-05

Top events · Seattle Mariners

1
MLB Mariners–Padres
2026-05-16 · NBC · FOX
2,500,000
MLB
2
Seattle Mariners at Houston Astros
2026-08-16 · NBC
2,242,000
MLB
3
San Diego Padres at Seattle Mariners
2026-05-17 · Peacock · NBC
1,804,000
MLB
4
Seattle Mariners at New York Yankees
2026-08-12 · ESPN
1,348,000
MLB
5
Seattle Mariners at Baltimore Orioles
2026-06-11 · ESPN
886,000
MLB
6
Seattle Mariners at Houston Astros
2026-05-11 · FS1
370,000
MLB

Top opponents

by most-watched telecast
1
Blue Jays
Seattle Mariners at Toronto Blue Jays · 2025-10-20
8,910,000
7 telecasts
2
Tigers
MLB Mariners–Tigers · 2025-10-10
8,720,000
4 telecasts
3
Padres
MLB Mariners–Padres · 2026-05-16
2,500,000
2 telecasts
4
Astros
Seattle Mariners at Houston Astros · 2026-08-16
2,242,000
4 telecasts
5
Red Sox
Seattle Mariners at Boston Red Sox · 2018-06-23
2,200,000
2 telecasts

Top networks

by most-watched telecast
1
FOX
Seattle Mariners at Toronto Blue Jays · 2025-10-20
8,910,000
4 telecasts
2
FS1
Toronto Blue Jays at Seattle Mariners · 2025-10-15
4,580,000
11 telecasts
3
ESPN
Seattle Mariners at New York Mets · 2025-08-17
1,570,000
12 telecasts
4
NBC
MLB Mariners–Padres · 2026-05-16
2,500,000
2 telecasts
5
Peacock
San Diego Padres at Seattle Mariners · 2026-05-17
1,804,000
1 telecast

Telecasts with figures

date

date the telecast's air date. On a series row, the year.

Methodology →
telecast

telecast the telecast the figure is attached to, with its air date. A figure with no telecast row is listed without one.

Methodology →
figure

figure the telecast's lead figure: Nielsen average audience, full telecast, as published. Blank when Nielsen has not published one.

Methodology →
2026-08-16Seattle Mariners at Houston Astros2,242,000
2026-08-12Seattle Mariners at New York Yankees1,348,000
2026-06-11Seattle Mariners at Baltimore Orioles886,000
2026-05-17San Diego Padres at Seattle Mariners1,804,000
2026-05-16MLB Mariners–Padres2,500,000
2026-05-11Seattle Mariners at Houston Astros370,000
2025-10-20Seattle Mariners at Toronto Blue Jays8,910,000
2025-10-19Seattle Mariners at Toronto Blue Jays5,140,000
2025-10-17Toronto Blue Jays at Seattle Mariners3,950,000
2025-10-16Toronto Blue Jays at Seattle Mariners2,960,000
2025-10-15Toronto Blue Jays at Seattle Mariners4,580,000
2025-10-12Seattle Mariners at Toronto Blue Jays5,190,000
2025-10-10MLB Mariners–Tigers8,720,000
2025-10-08Seattle Mariners at Detroit Tigers2,560,000
2025-10-07Seattle Mariners at Detroit Tigers1,000,000
2025-10-05Detroit Tigers at Seattle Mariners3,530,000
2025-08-17Seattle Mariners at New York Mets1,570,000
2025-06-23Seattle Mariners at Minnesota Twins300,000
2025-05-29Washington Nationals at Seattle Mariners160,000
2025-04-16Seattle Mariners at Cincinnati Reds200,000
2024-08-11New York Mets at Seattle Mariners937,000
2023-09-26Houston Astros at Seattle Mariners263,000
2023-04-01Cleveland Guardians at Seattle Mariners198,000
2022-10-08Seattle Mariners at Toronto Blue Jays2,640,000
2021-07-06New York Yankees at Seattle Mariners285,000
2020-08-04Los Angeles Angels at Seattle Mariners298,000
2020-07-29Seattle Mariners at Los Angeles Angels466,000
2019-05-08Seattle Mariners at New York Yankees471,000
2019-03-28Boston Red Sox at Seattle Mariners1,190,000
2019-03-21Seattle Mariners at Oakland Athletics311,000
2018-08-12Seattle Mariners at Houston Astros249,000
2018-06-23Seattle Mariners at Boston Red Soxsplit window2,200,000
2018-03-29Cleveland Indians at Seattle Mariners1,000,000
2017-08-27Seattle Mariners at New York Yankees323,000