Who are the probable pitchers for Chicago Cubs at Seattle Mariners?

The listed probable pitchers are TBA and TBA. Probable pitchers can change before first pitch.

Chicago Cubs at Seattle Mariners - Game Time, TV Channel and Probable Pitchers

Q: What time is Chicago Cubs at Seattle Mariners?

The listed start time is 10:10 PM ET. Game times are shown in Eastern Time, with browser local-time conversion when UTC data is available.

Chicago Cubs at Seattle Mariners Game Summary

A quick matchup view with teams, score status, first pitch time and local-time conversion.

Chicago Cubs 52-40

Scheduled at Fri, Aug 21 · 10:10 PM ET

Seattle Mariners 47-46

Game Info: Date, Time and Venue

DateAugust 21, 2026

Time10:10 PM ET

VenueT-Mobile Park

SeriesRegular Season · Game 1 of 3

Day/Nightnight

Date Schedule

Chicago Cubs vs Seattle Mariners Probable Pitchers

CHCTBA

SEATBA

TV Channel and Streaming

KING 5 TV · home

Mariners.TV TV · home · Streaming

Marquee Sports Network TV · away · Streaming

104.3 The Score FM · away · Streaming

Mariners ES Radio AM · home · Streaming

Seattle Sports (710 AM) AM · home · Streaming

How to Use This MLB Game Page

Designed for fans checking a single matchup before or during game day.

Check first pitch and local time

The main time is listed in Eastern Time. A local-time conversion appears when UTC start time data is available.

Confirm the TV channel

The TV and Streaming section shows loaded broadcast labels. Availability can vary by market, provider and subscription.

Compare probable pitchers

Probable pitchers and available season stats are shown for both teams, but assignments can change before first pitch.

Jump to related schedules

Use team links, the date schedule link and same-date games to keep browsing without leaving the MLB schedule tool.

More MLB Games on August 21, 2026

Other games loaded for the same date, with TV listings, probable pitchers and game details.

Date / Time	Matchup	Status	TV / Streaming	Probable Pitchers	Venue	Links
Fri, Aug 21 4:10 PM ET	Atlanta Braves at Milwaukee Brewers 53-38 / 58-34	Scheduled	BravesVision, Brewers.TV Presented by Potawatomi Sportsbook	ATL: TBA MIL: TBA	American Family Field	Details
Fri, Aug 21 6:40 PM ET	St. Louis Cardinals at Philadelphia Phillies 48-43 / 51-42	Scheduled	Cardinals.TV Presented by bet365, NBCSP	STL: TBA PHI: TBA	Citizens Bank Park	Details
Fri, Aug 21 7:05 PM ET	Toronto Blue Jays at New York Yankees 44-49 / 50-42	Scheduled	Sportsnet, TVA Sports, YES	TOR: TBA NYY: TBA	Yankee Stadium	Details
Fri, Aug 21 7:05 PM ET	Tampa Bay Rays at Baltimore Orioles 54-36 / 42-51	Scheduled	MASN, Rays.TV	TB: TBA BAL: TBA	Oriole Park at Camden Yards	Details
Fri, Aug 21 7:10 PM ET	Washington Nationals at Miami Marlins 48-46 / 51-42	Scheduled	Marlins.TV presented by Werner, Hoffman, Greig & Garcia, Nationals.TV	WSH: TBA MIA: TBA	loanDepot park	Details
Fri, Aug 21 7:10 PM ET	San Francisco Giants at Boston Red Sox 38-54 / 42-48	Scheduled	NBCS BA, NESN	SF: TBA BOS: TBA	Fenway Park	Details
Fri, Aug 21 7:40 PM ET	New York Mets at Chicago White Sox 39-54 / 47-44	Scheduled	Chicago Sports Network, WPIX	NYM: TBA CWS: TBA	Rate Field	Details
Fri, Aug 21 8:05 PM ET	Los Angeles Angels at Texas Rangers 37-56 / 46-46	Scheduled	ABTV, presented by Pechanga Resort Casino, CW33	LAA: TBA TEX: TBA	Globe Life Field	Details
Fri, Aug 21 8:10 PM ET	Detroit Tigers at Kansas City Royals 42-50 / 38-55	Scheduled	Detroit SportsNet, KCTV5, Royals.TV	DET: TBA KC: TBA	Kauffman Stadium	Details
Fri, Aug 21 8:10 PM ET	Athletics at Houston Astros 41-51 / 46-49	Scheduled	NBCSCA, Space City Home Network	ATH: TBA HOU: TBA	Daikin Park	Details
Fri, Aug 21 8:40 PM ET	Cleveland Guardians at Colorado Rockies 47-46 / 38-56	Scheduled	Guardians.TV Presented by Progressive, Rockies.TV	CLE: TBA COL: TBA	Coors Field	Details
Fri, Aug 21 9:40 PM ET	Minnesota Twins at San Diego Padres 46-47 / 46-46	Scheduled	Padres.TV Presented by UC San Diego Health, Twins.TV Presented by Progressive	MIN: TBA SD: TBA	Petco Park	Details
Fri, Aug 21 9:40 PM ET	Cincinnati Reds at Arizona Diamondbacks 42-49 / 45-47	Scheduled	DBACKS.TV, Reds.TV	CIN: TBA AZ: TBA	Chase Field	Details
Fri, Aug 21 10:10 PM ET	Chicago Cubs at Seattle Mariners 52-40 / 47-46	Scheduled	KING 5, Mariners.TV, Marquee Sports Network	CHC: TBA SEA: TBA	T-Mobile Park	Details
Fri, Aug 21 10:10 PM ET	Pittsburgh Pirates at Los Angeles Dodgers 47-46 / 61-33	Scheduled	SportsNet LA, SportsNet Pittsburgh	PIT: TBA LAD: TBA	UNIQLO Field at Dodger Stadium	Details

Chicago Cubs at Seattle Mariners FAQ

Common questions for this MLB matchup.

What time is Chicago Cubs at Seattle Mariners?

The listed start time is 10:10 PM ET. Times are shown in Eastern Time.

What channel is Chicago Cubs at Seattle Mariners on?

The current TV listing is KING 5, Mariners.TV, Marquee Sports Network. Broadcast and streaming availability can vary by market.

Who are the probable pitchers?

The listed probable pitchers are TBA and TBA. Probable starters can change before first pitch.

Where is the game being played?

The listed venue is T-Mobile Park.

Chicago Cubs at Seattle Mariners: Game Time, TV Channel and Probable Pitchers