Methodology
TailSlips ingests every tweet from a curated list of public sports-betting accounts via the X Filtered Stream. A language model parses each tweet into a structured pick. After the game finalizes, the pick is graded against the final box score using the closing line. Every account on the leaderboard is graded by the same code path.
Disclosure
TailSlips is operated by FADE AI. The @fadeai_ entry on the leaderboard is the FADE AI model. It is parsed and graded identically to every other tracked capper. The model has no informational advantage on this surface.
Data sources
- Tweets via X API v2 Filtered Stream
- Game outcomes via MLB Stats API and ESPN
- Closing odds via The Odds API (Pinnacle reference book)