SleeperHound
A fantasy baseball waiver-wire app that surfaces deep sleepers like Jimmy Crooks before they break out, using Statcast signals and minor-league trajectory trends.
competitive fantasy baseball managers playing in deep mixed or dynasty leagues
- Daily watchlist alerts when a deep bench player's Statcast metrics spike (barrel rate, hard-hit, exit velocity)
- Probable-callup forecaster that combines minor-league stats, age, and 40-man roster moves
- Add/drop timing score that rates whether to grab a player now or wait 24 hours
- Head-to-head trade value index using rest-of-season projections
The Cardinals story is exactly the kind of late-season walk-off that swings fantasy championships, and Crooks is the perfect example of a name casual fans have never heard of who can change a week.
Jimmy Crooks is a real Cardinals catching prospect (2025 debut, walk-off homer, MiLB RBI leader) and a credible fantasy sleeper example; waiver/sleeper content is a major vertical for FantasyPros and RotoBaller, indicating real readership — but a single-name 200-search trend is modest, not breakout demand.Jimmy Crooks Stats, Age, Position, Height, Weight, Fantasy & News ↗Fantasy Baseball Waiver Wire Assistant | FantasyPros ↗
Market is crowded: FantasyPros My Playbook, RotoBaller waiver wire, Dynatyze (already combines prospect database + batted-ball/Statcast metrics), DailyWaivers, FantasyAlarm — Dynatyze in particular already targets dynasty/prospect users with Statcast-adjacent analytics, leaving limited room for a new entrant.Dynatyze Baseball Pricing — Pro & Ultra | Dynatyze ↗Fantasy Baseball Waiver Wire Assistant | FantasyPros ↗Fantasy Baseball Articles, Tools and Analysis | DailyWaivers ↗
Clear willingness to pay: Dynasty Nerds Premium runs $69.99/yr ($6.99/mo) with 11,000+ premium members at a 4.7★ App Store rating; Dynatyze sells Pro/Ultra tiers; FantasyPros monetizes My Playbook via subscription — fantasy baseball players are a proven paying niche.Plans and Pricing - Dynasty Nerds ↗Dynatyze Baseball Pricing — Pro & Ultra | Dynatyze ↗
MLB season is annual but only ~6–7 months of peak engagement, driving seasonal churn and re-acquisition cost every spring; Statcast and MiLB data feeds are stable, but the core use case is in-season only.Jimmy Crooks Stats, Age, Position, Height, Weight, Fantasy & News ↗
Statcast data is publicly available via Baseball Savant/MLB and MiLB data via milb.com, so the data layer is accessible — but combining Statcast + minor-league trajectory + automated sleeper alerts + cross-platform (web+iOS) delivery is a non-trivial multi-month build, not trivial.Jimmy Crooks Stats, Age, Position, Height, Weight, Fantasy & News ↗