Sports simulation platform

Rival Roster

Rival Roster lets fans explore player battles, fantasy matchups, and team simulations across NBA, NFL, NHL, and MLB. A custom engine models chemistry, momentum, fatigue, and sport-specific rules, then returns box scores, play-by-play, MVPs, and ELO tracking.

Visit Rival Roster

Rival Roster landing page — Build Your Squad. Challenge Anyone.

Rival Roster Team Sphere for browsing NBA teams

Rival Roster battle result with head-to-head player stats

Rival Roster NFL team comparison and win probability

Highlights

Player Battles, Player Fantasy, and Team Simulation modes
Daily sports-stat ingestion through external APIs
Ratings, matchup advantages, chemistry, and substitutions
Box scores, MVP selection, and play-by-play generation

Technology

Next.js
React 18
Tailwind CSS
Node.js
PostgreSQL
Supabase
Prisma
NextAuth.js
BallDontLie API