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chanzer0 DFS Tools

Free Python optimizers and Monte Carlo GPP simulators for NFL, NBA, MLB and PGA DFS

SimulatorLineup optimizer
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About chanzer0 DFS Tools

chanzer0's DFS Tools are a family of free GitHub repositories that pair a lineup optimizer with a GPP contest simulator for DraftKings and FanDuel. Users supply their own projection and ownership CSVs, then run optimal-lineup builds or Monte Carlo tournament sims, including showdown formats. The NFL version, built with Blaine Jungwirth, is the most active, with companion repos for NBA, MLB, PGA and MMA.

Features

  • Optimizer with optional randomness
  • Monte Carlo GPP contest simulation
  • Showdown sims for DK and FD
  • Runs on your own projections and ownership
  • Command-line Python workflow
  • Community Discord

Sports and sites covered

Works with

  • DraftKings
  • FanDuel

Pricing

Free

Free on GitHub; run locally with Python

Prices as listed on github.com when we checked. Confirm current pricing on their site.

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Sources and corrections

Last checked Oct 3, 2026. We build every listing from the sources below and recheck them regularly. If something about chanzer0 DFS Tools has changed, let us know.