The Marlins and Nationals finish a three-game set at Nationals Park on Sunday in the MLB Sunday Leadoff window — the midday national game that streams on Peacock. There’s a wrinkle worth knowing before you go looking for it on your usual channel: this one is not on either team’s regional sports network.
It’s also the last Sunday Leadoff game of the 2026 season.
| Matchup | Miami Marlins at Washington Nationals |
| Date | Sunday, August 30, 2026 |
| First pitch | 12:15 p.m. ET |
| Streaming | Peacock |
| TV | NBCSN |
| Spanish | Telemundo Deportes carries NBCUniversal-produced MLB games |
| Venue | Nationals Park, Washington, D.C. |
| Series | Game 3 of 3; Washington won the first two |
First pitch by time zone
| Eastern | Central | Mountain | Arizona | Pacific |
|---|---|---|---|---|
| 12:15 p.m. | 11:15 a.m. | 10:15 a.m. | 9:15 a.m. | 9:15 a.m. |
Why It’s Not on Your Regional Channel
MLB Sunday Leadoff is a national package. When a game is selected for it, the local rights holders in both markets step aside, which means viewers in Washington and Miami cannot watch on the channel they normally would. These games are also not carried on MLB.TV. Peacock is the streaming home and NBCSN carries it on cable, and that is the full list of options in the United States.
This is the eighteenth and final Sunday Leadoff game of 2026. The package ran every Sunday from May 3 through today, and Peacock also streams a nationally available out-of-market Game of the Day through the week plus a Sunday afternoon whip-around show. Full listings for the rest of the day are in our MLB games today roundup; official schedules are at MLB.com.
The Pitching Matchup
| Miami | Washington | |
|---|---|---|
| Starter | RHP Janson Junk | LHP Andrew Alvarez |
| Record | 6-8 | 2-6 |
| ERA | 4.21 | 3.72 |
| Strikeouts | 68 across 19 starts | 80 |
Both bullpens come in tired. Saturday’s game went past regulation and required roughly ten combined relief innings less than 24 hours before a midday first pitch, and neither starter has been going deep — Junk hasn’t reached six innings since August 12. The first two games of the series produced 11 and nine runs. Washington is the more dangerous lineup, leading the majors in home runs and ranking second in runs per game.
The Bottom Line
First pitch is 12:15 p.m. ET at Nationals Park, streaming on Peacock and airing on NBCSN. If you’re in the Washington or Miami market, your regional network does not have this one — you need the national feed, and MLB.TV won’t carry it either. Washington has won the first two and is going for the sweep behind Andrew Alvarez.