Bullpen Watch — MLB reliever companion for fans who track the leverage
Get live 'warming up' alerts, leverage ratings, and post-outing recaps for the relievers you follow — built for fans who care more about the 8th-inning matchup than the starting line.
MLB fans and DFS/fantasy players who pay close attention to bullpen usage
- Personalized warming-up alerts for relievers you follow (push or SMS)
- Live leverage index per at-bat (run expectancy × inning pressure)
- Pitch mix and velocity trends charted across appearances
- Auto-generated one-paragraph recap after each outing pulled from broadcast feeds
Bullpen games are now the default MLB strategy; the Will Klein article itself is a doubleheader bullpen game, proving fans are tracking relievers as the main characters.
Trending search is for a single reliever in a marquee game, indicating sustained name-recognition fan interestBullpen Fatigue Tracker — Today's Closer Availability | Baseball Alerts ↗
Most MLB apps (MLB.com, Baseball Savant) focus on starters and hitters; reliever-first companion UI is rareBullpen Fatigue Tracker — Today's Closer Availability | Baseball Alerts ↗
DFS players pay $10–$50/mo for premium projections and alerts; casual fans are modest spendersBullpen Fatigue Tracker — Today's Closer Availability | Baseball Alerts ↗
MLB plays 162 games a year; reliever tracking is sticky across the season and beyond
Statcast, MLB schedule, and broadcast feeds already exist as APIs; UI is mostly cards and a push pipeline