AI Advantage Sports

ML-driven sports betting product: predictions, Kelly-based bet sizing, live odds, and a real subscription surface. Live at aiadvantagesports.com.

Why this exists

Most "AI betting" projects stop at a notebook. This one ships.

AI Advantage turns model output into a decision a user can actually act on:

• Predict — model-driven picks across NBA, NFL, and MLB
• Size — Kelly-based stake recommendations that protect bankroll
• Time — live odds and line-movement views to catch value before the market adjusts
• Monetize — premium tier with real Stripe checkout, not a fake paywall

It's the product layer of a larger sports-analytics stack — the modeling lives in adjacent repos, this is where it meets a user.

Feature tour

Area	What it does
Game analyzer	Enter a matchup, get an analysis and a recommendation
Live odds	Track lines and movement across the slate
Kelly sizing	Translate edge + bankroll into a stake
Multi-sport	NBA, NFL, MLB workflows
Premium	Stripe subscription + one-time checkout
Newsletter	Notion-backed capture wired into Substack

Stack

React · TypeScript · Vite · Tailwind CSS · shadcn/ui

Serverless API routes handle Stripe checkout and newsletter capture so previews and production stay fully functional.

Run it locally

git clone https://github.com/ianalloway/ai-advantage.git
cd ai-advantage
npm install
npm run dev

Open http://localhost:5173.

Deployment

• netlify.toml — Netlify SPA deploy
• vercel.json — SPA rewrites for Vercel preview deploys
• api/create-checkout-session.ts + api/checkout-session.ts — server-side Stripe checkout

Stripe (server flow)

STRIPE_SECRET_KEY=***
STRIPE_PREMIUM_PRICE_ID=price_...
STRIPE_ONE_TIME_PRICE_ID=price_...
PUBLIC_APP_URL=https://your-domain

If unset, the app falls back to static Stripe Payment Links via VITE_STRIPE_CHECKOUT_URL and VITE_STRIPE_ONE_TIME_CHECKOUT_URL.

Newsletter capture

The homepage form posts to /api/newsletter-subscribe, which creates a Notion entry, emails a notification, and redirects into the Substack subscribe flow.

NOTION_API_KEY=***
NOTION_PARENT_PAGE_ID=...
RESEND_API_KEY=re_...
RESEND_FROM_EMAIL="AI Advantage <onboarding@yourdomain.com>"
NOTIFY_EMAIL=ian@allowayllc.com
SUBSTACK_PUBLICATION_URL=https://allowayai.substack.com

Where the modeling lives

Repo	Role
sports-betting-ml	Models — logistic regression, XGBoost, ensembles
nba-ratings	Ratings + win-probability library
kelly-js	Kelly / odds / bankroll math (TS)

Author

Ian Alloway — Portfolio · LinkedIn · Writing

License

Proprietary. All rights reserved.