BASERUNNER icon

BASERUNNER

by colevissicchio98@gmail.com · Entertainment
Manifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

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

Users
4
0 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#280K
#232K among extensions
Version
1.0.1
updated 23 Apr 2026

Users

monthly, 6 months
025Apr 2026Aug 2026Oct 2026
Latest, 15 Oct 2026: 4 usersMove the mouse over the chart for any month

Ratings count

monthly, 6 months
001Apr 2026Aug 2026Oct 2026
Latest, 15 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About BASERUNNER

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)

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%00.00
30 days0+0.0%00.00

Version history

2 versions recorded
1.0.123 Apr 2026
1.0.022 Apr 2026

Details

Category
Entertainment
First seen
22 Apr 2026
Size
45 KB
Languages
en
Pricing
Free
Privacy policy
baserunner-api.onrender.com
Extension ID
fppdiekilgfnecpdkhncigbifkmjoogp

Permissions and risk

Moderate riskimpact 3, likelihood 2
Permissions
tabsstorage
Site 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/*

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