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6/24/2026
Building a Real-Time World Cup 2026 Bracket Predictor with Vanilla JS and GitHub Actions

Building a Real-Time World Cup 2026 Bracket Predictor with Vanilla JS and GitHub Actions

Short summary

A developer built a World Cup 2026 bracket predictor using ELO-based win probabilities and realistic score simulation in Vanilla JS. The app syncs live match data via GitHub Actions that bypasses API rate limits. Includes complex logic for mathematical elimination and FIFA Annex C third-place qualification.

  • •ELO-based engine generates realistic match scores using Poisson-like goal simulation
  • •GitHub Actions workflow bypasses API rate limits with 30-minute synchronization
  • •Handles complex World Cup qualification including mathematical elimination and 3rd-place rules

Generated with AI, which can make mistakes.

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