Website for Brackt.com
Find a file
Chris Parsons a6bb1330e6
Fix darts simulator: bracket bug, ELO calibration, fallback Elo (#284)
* fix: lower darts ELO_DIVISOR to 400 and fallback Elo to 1400

ELO_DIVISOR 500 → 400: elite darts is more skill-dominated than the
previous setting implied. A 400-point gap now gives ~78% per-set win
probability (vs ~73% before).

fallbackElo 1600 → 1400: unseeded PDC World Championship entrants
(regional qualifiers, Q-School players) are materially weaker than
seeded tour professionals. 1400 better reflects that gap.

Combined effect: a dominant player (e.g. 2000 Elo vs 1400-1600 field)
now produces EV ≈ 65 instead of ≈ 30, which better matches expectations
for a top-ranked player in a 128-player bracket.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix: lower darts ELO_DIVISOR to 200 for realistic EV distribution

With the actual PDC field (top players clustered 1800–1970 Elo, Littler at
~2080), ELO_DIVISOR=400 made the gap between world #1 and the top 8 too
soft — EV for Littler came out ~37 instead of the expected 65–70.

ELO_DIVISOR=200 calibrates correctly for this field: a 100-pt gap now
gives ~62% per-set win probability (vs ~56% at 400), sharply rewarding
the best players while still allowing upsets. Littler at 2084 produces
EV ≈ 65–70 against the real PDC tour roster.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix: seed darts bracket by Elo instead of world ranking

World ranking (PDC Order of Merit) is prize-money-based and can diverge
from current skill — e.g. Kevin Doets (1818 Elo) was ranked 35th while
Joe Cullen (1667 Elo) held the 32nd seed. Seeding the weaker player and
leaving the stronger one unseeded contradicts the Elo-based match model.

Seeding by Elo descending ensures the 32 strongest players (by the same
metric used to compute match probabilities) get protected bracket positions.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* revert: restore world-ranking-based seeding for darts bracket

Seeding should follow the PDC Order of Merit (world ranking), not Elo.
Reverts the previous Elo-seeding commit.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix: interleave seeded and unseeded R1 pairs in darts bracket

Previously, all 32 seeded-vs-unseeded matches were added to r1Pairs
first (indices 0–31) and all 32 unseeded-vs-unseeded matches last
(indices 32–63). Since R2 pairs adjacent R1 winners, this created two
completely separate sub-brackets that only converged at the Final:
  - Seeded sub-bracket: top players eliminating each other early
  - Unseeded sub-bracket: high-Elo unseeded players (e.g. Doets 1818,
    Zonneveld 1806) steamrolling weak opponents and making the Final
    ~20% of the time

Fix: interleave each seeded match with its adjacent unseeded-vs-unseeded
match. Seeded pair i is at r1Pairs[2i], unseeded pair i is at r1Pairs[2i+1].
From R2 onwards, winners from seeded and unseeded regions now merge
correctly as in a real single-elimination bracket.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-09 00:47:47 -04:00
.claude Fix lint hook: output additionalContext JSON so Claude sees errors in-context 2026-03-24 21:52:23 -07:00
.github/workflows Fix migration check in deploy script to use reliable exit code (#267) 2026-04-06 00:44:04 -04:00
.storybook Initial storybook components. 2026-03-29 22:09:45 -07:00
.vscode feat: add Sentry error monitoring (#132) 2026-03-10 23:35:33 -07:00
app Fix darts simulator: bracket bug, ELO calibration, fallback Elo (#284) 2026-04-09 00:47:47 -04:00
cypress Fix oxlint warnings: no-shadow, consistent-function-scoping, no-non-null-assertion, and others (#196) 2026-03-21 10:59:51 -07:00
database feat: add vorp_value column to participants table 2026-04-09 01:57:22 +00:00
drizzle feat: add vorp_value column to participants table 2026-04-09 01:57:22 +00:00
plans Update claude.md to push more tests. (#84) 2026-03-07 22:31:04 -08:00
public Fixes missing icon. 2026-03-11 14:20:53 -07:00
scripts Add PgBouncer connection pooling support for Vultr managed PostgreSQL (#271) 2026-04-06 17:15:18 -04:00
server Add PgBouncer connection pooling support for Vultr managed PostgreSQL (#271) 2026-04-06 17:15:18 -04:00
.dockerignore Initial commit from create-react-router 2025-10-10 23:04:50 -07:00
.env.example Add PgBouncer connection pooling support for Vultr managed PostgreSQL (#271) 2026-04-06 17:15:18 -04:00
.gitignore Install Storybook with React Router Vite plugin fix, closes #229 (#243) 2026-03-29 15:20:48 -07:00
.mcp.json MCP update 2026-03-11 21:45:19 -07:00
.nvmrc Optimize GitHub Actions CI/CD pipeline (#252) 2026-04-01 00:59:21 -07:00
.oxlintrc.json Replace console.* with structured logger, fix no-inferrable-types (closes #98) (#199) 2026-03-21 13:41:39 -07:00
CLAUDE.md Clean up migration chain and add verification migration (#268) 2026-04-06 10:53:51 -04:00
components.json feat: add theme system with dark mode support and navbar component 2025-10-10 23:30:26 -07:00
cypress.config.js ci: add test job to GitHub workflow and setup testing dependencies 2025-10-21 12:47:11 -07:00
docker-compose.yml feat: add FIFA World Cup 48-team bracket template with group stage and projected scoring 2026-02-14 22:30:12 -08:00
Dockerfile Decouple database migrations from server startup (#265) 2026-04-06 00:07:36 -04:00
drizzle.config.ts Add PgBouncer connection pooling support for Vultr managed PostgreSQL (#271) 2026-04-06 17:15:18 -04:00
instrument.server.mjs Filter unnecessary sentry css and js errors. 2026-03-15 10:24:57 -07:00
package-lock.json Clean up migration chain and add verification migration (#268) 2026-04-06 10:53:51 -04:00
package.json Decouple database migrations from server startup (#265) 2026-04-06 00:07:36 -04:00
plan.md Add implementation plan for commissioner-without-team feature (#6) 2026-02-20 08:45:09 -08:00
react-router.config.ts Add oxlint linting setup with zero errors (#194) 2026-03-21 09:44:05 -07:00
README.md Initial commit from create-react-router 2025-10-10 23:04:50 -07:00
server.ts Decouple database migrations from server startup (#265) 2026-04-06 00:07:36 -04:00
TESTING.md ci: add test job to GitHub workflow and setup testing dependencies 2025-10-21 12:47:11 -07:00
tsconfig.json refactor: update import paths to use absolute paths for better clarity and maintainability 2025-10-24 21:20:19 -07:00
tsconfig.node.json Add oxlint linting setup with zero errors (#194) 2026-03-21 09:44:05 -07:00
tsconfig.server.json Add oxlint linting setup with zero errors (#194) 2026-03-21 09:44:05 -07:00
tsconfig.vite.json Add oxlint linting setup with zero errors (#194) 2026-03-21 09:44:05 -07:00
vite.config.ts feat: add Sentry error monitoring (#132) 2026-03-10 23:35:33 -07:00
vitest.config.ts Fix test:run failing in CI due to missing Playwright browser (#246) 2026-03-30 14:42:23 -07:00
vitest.shims.d.ts Install Storybook with React Router Vite plugin fix, closes #229 (#243) 2026-03-29 15:20:48 -07:00

Welcome to React Router!

A modern, production-ready template for building full-stack React applications using React Router.

Features

  • 🚀 Server-side rendering
  • Hot Module Replacement (HMR)
  • 📦 Asset bundling and optimization
  • 🔄 Data loading and mutations
  • 🔒 TypeScript by default
  • 🎉 TailwindCSS for styling
  • 💾 PostgreSQL + DrizzleORM
  • 📖 React Router docs

Getting Started

Installation

Install the dependencies:

npm install

Development

Copy .env.example to .env and provide a DATABASE_URL with your connection string.

Run an initial database migration:

npm run db:migrate

Start the development server with HMR:

npm run dev

Your application will be available at http://localhost:5173.

Building for Production

Create a production build:

npm run build

Deployment

Docker Deployment

To build and run using Docker:

# For npm
docker build -t my-app .

# Run the container
docker run -p 3000:3000 my-app

The containerized application can be deployed to any platform that supports Docker, including:

  • AWS ECS
  • Google Cloud Run
  • Azure Container Apps
  • Digital Ocean App Platform
  • Fly.io
  • Railway

DIY Deployment

If you're familiar with deploying Node applications, the built-in app server is production-ready.

Make sure to deploy the output of npm run build

├── package.json
├── package-lock.json (or pnpm-lock.yaml, or bun.lockb)
├── server.js
├── build/
│   ├── client/    # Static assets
│   └── server/    # Server-side code

Styling

This template comes with Tailwind CSS already configured for a simple default starting experience. You can use whatever CSS framework you prefer.


Built with ❤️ using React Router.