BASERUNNER

Automatically switches your MLB.TV tab to the most relevant live game for your fantasy roster. Free during beta.

As of June 2026, BASERUNNER has 1 users in the Entertainment category.

Usersno change0%
1
1
Ratingno change0%
— reviews
Reviewsno change0%
Version
1.0.1
Manifest V3
90-day change · In the last 90 days this extension 1 version update.

History

6 snapshots

Tracking since Apr 23, 2026.

2.081.50.9199999999999999Apr 23, 2026Jun 11, 2026
View as table
DateUsersRatingReviewsVersion
Apr 23, 20261.0.0
Apr 27, 20261.0.0
May 5, 202611.0.1
May 10, 202621.0.1
Jun 5, 20261.0.1
Jun 11, 202621.0.1
Now11.0.1

Changelog

  • Apr 27, 2026
    short_description
    Automatically switches your MLB.TV tab to the most relevant live game for your fantasy roster.
    Automatically switches your MLB.TV tab to the most relevant live game for your fantasy roster. Free during beta.

Permissions & access

Permissions
tabsstorage
Host access
https://www.mlb.com/*, https://statsapi.mlb.com/*, http://localhost/*, https://baserunner-api.onrender.com/*, https://www.espn.com/*, https://site.api.espn.com/*, https://lm-api-reads.fantasy.espn.com/*

Screenshots

BASERUNNER screenshot 1BASERUNNER screenshot 2BASERUNNER screenshot 3BASERUNNER screenshot 4

About

BASERUNNER automatically switches your MLB.TV browser tab to the most relevant live game based on your fantasy baseball roster.

How it works:
• Connect your Yahoo, ESPN, Sleeper, or Fantrax fantasy baseball league
• Or manually add any MLB players to your watchlist
• Open MLB.TV in a tab and enable auto-switching
• BASERUNNER monitors all live games and detects when your players are batting, on deck, or pitching
• It automatically switches your MLB.TV tab to the best game so you never miss an at-bat

Key features:
• AT-BAT AWARENESS: Never switches during a tracked player's at-bat. Waits for it to finish, then immediately jumps to the next best event.
• ON-DECK DETECTION: Switches you to a game BEFORE your player steps up to bat, so you see the full at-bat.
• SMART SCORING: Ranks events by importance (batting > on deck > pitching), with bonuses for runners in scoring position, close games, and late innings.
• COMMERCIAL BREAK DETECTION: Avoids switching to games in the middle of inning breaks.
• BLACKOUT PROTECTION: Mark teams you're blacked out from so it never switches to those games.
• PITCHER PRIORITY MODE: Stay on your starting pitcher's game, with quick detours for hitter at-bats during breaks.
• MULTIPLE FANTASY PLATFORMS: Yahoo, ESPN, Sleeper, and Fantrax support.
• MANUAL WATCHLIST: Works without any fantasy platform. Just search and add players.
• FULL CONTROL: Pause, lock to a game, adjust scoring weights, set switch intervals.

Supported fantasy platforms:
• Yahoo Fantasy Baseball (OAuth login)
• ESPN Fantasy Baseball (cookie-based auth)
• Sleeper (just enter your username)
• Fantrax (API key required)

Requirements:
• MLB.TV subscription
• Chrome browser (desktop)

Technical

Version
1.0.1
Manifest
V3
Size
45.13KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
fppdiekilgfnecpdkhncigbifkmjoogp
Developer ID
uc856dddc39fb30f0cb79e315c99ecf70
Developer Email
[email protected]
Created
Apr 22, 2026
Last Updated (Store)
Apr 23, 2026
Last Scraped
Jun 11, 2026
Website
Support URL

Data sourced from the Chrome Web Store · last verified Jun 11, 2026.