Line Lock
A browser extension that overlays last-minute lineup changes and injury news directly onto your DraftKings or FanDuel contest lobby.
Hockey DFS grinders who enter 50+ contests per night
- Injects a status badge next to every player name on your contest page
- Highlights stacks where a linemate is suddenly questionable
- Auto-flags contests where your roster is now non-optimal based on confirmed scratches
DFS grinders lose money to last-minute scratches they didn't see in time; a single Dach-style out 20 minutes before lock can wipe a 20-entry card.
Hockey is the smallest of the major DFS sports; multiple paid tools (RotoGrinders, FantasyLabs, LineStar) confirm grinders exist, but the "last-minute scratch" angle is not a discrete high-volume search term (returned zero results).RotoGrinders - Daily Fantasy Hockey ↗FantasyLabs NHL DFS Tools ↗
No existing browser-extension overlay was found; competitors (FantasyLabs, LineStar, RotoGrinders, DailyFantasyFuel, DailyFaceoff, SaberSim) are all separate web apps, so the lobby-overlay UX is novel — but the underlying injury/lineup data they rely on is already commoditized.Daily Faceoff - Line Combinations Tonight ↗LineStar DFS Lineup Optimizer ↗
Multiple established NHL DFS subscriptions exist (RotoGrinders premium, LineStar, FantasyLabs, SaberSim) proving grinders pay $30–200+/mo for an edge, but hockey's smaller TAM caps total revenue potential.SaberSim - We Help You Win ↗Best DFS Tools 2024 - Daily Fantasy Sports 101 ↗
Need is real and recurring across an Oct–June NHL season, but DK/FD change their lobby DOM frequently (extensions break), and DFS faces ongoing state-by-state regulatory risk that could shrink the market.Daily Faceoff - NHL News ↗
Buildable as a Chrome extension, but DraftKings/FanDuel expose no public contest-lobby API, so it must rely on fragile DOM scraping against UIs that change without notice; real-time injury feed integration is an additional dependency.DailyFantasyFuel NHL Optimizer ↗