MMA ELO

What it does

UFC's official rankings are voted on by media — MMA ELO tracks fighter ratings algorithmically using an ELO engine applied to every UFC fight result. Updated automatically after each event. Features include divisional leaderboards, individual career arcs, head-to-head comparisons, and the Snub List, unranked fighters who rate higher than official contenders.

• IS
  Improving search ranking with chess Elo scores2025 · zeroentropy.dev · ▲193

  Hello HN, I'm Ghita, co-founder of ZeroEntropy (YC W25). We build high accuracy search infrastructure for RAG and AI Agents. We just released two new state-of-the-art rerankers zerank-1, and zerank-1-small. One of them is fully open-source under Apache 2.0. We trained those models using a novel Elo score inspired pipeline which we describe in detail in the blog attached. In a nutshell, here is an outline of the training steps: * Collect soft preferences between pairs of documents using an ensemble of LLMs. * Fit an ELO-style rating system (Bradley-Terry) to turn pairwise comparisons into…

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• ER
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