Question 1

How can I watch Chicago Cubs vs Seattle Mariners on 2026-08-21?

Accepted Answer

You can watch on MARQ, MASN+, Mariners.TV, MLB.TV.

Question 2

What time does Chicago Cubs at Seattle Mariners start?

Accepted Answer

The game starts at 10:10 PM ET ET on 2026-08-21.

Question 3

Can I watch Chicago Cubs vs Seattle Mariners without cable?

Accepted Answer

Yes. Streaming services like Hulu Live TV, YouTube TV, Sling, and Fubo carry the channels airing this game, and some channels offer direct-to-consumer subscriptions.

Question 4

Will the game be blacked out in my area?

Accepted Answer

Regional sports networks (RSNs) only carry the game in their home market. Out-of-market viewers can typically watch via league subscriptions (MLB.TV, NBA League Pass, NHL.tv) but those subscriptions black out in-market games. Check your provider for local availability.