Catie Di Stefano
Editor-in-Chief, PredictionWins
Who is Catie Di Stefano?
Catie has spent 15 years covering iGaming, sports betting, and now prediction markets — first as a trade reporter, later as head of editorial at two major industry publications. She has tested every regulated US event exchange since Kalshi's 2021 launch and writes the bulk of PredictionWins' platform reviews and tax explainers.
Bio
Catie has spent 15 years covering iGaming, sports betting, and now prediction markets — first as a trade reporter, later as head of editorial at two major industry publications. She has tested every regulated US event exchange since Kalshi's 2021 launch and writes the bulk of PredictionWins' platform reviews and tax explainers.
Guides
- NBA Prediction Markets 2026-27: Opening Night Odds and the Easiest Wins
Live NBA prices from Polymarket and Kalshi, how the Oct. 20 opening tripleheader is being priced, and which prediction market to use for each type of basketball trade.
- NFL Prediction Markets 2026: Week 1 Odds and the Easiest Wins
Live Week 1 NFL prices from Polymarket and Kalshi, where the softest lines are on the opening slate, and which prediction market to use for each type of football trade.
- What Are Prediction Markets? A Complete Beginner's Guide
Prediction markets let you trade on the outcome of real-world events. Here's how they work, why they're surprisingly accurate, and how to start.
- How to Read Prediction Market Odds (2026 Guide)
Contract prices, implied probability, expected value, and how to spot when the market is wrong.
- Kalshi vs Polymarket 2026: Which Platform Should You Use?
Head-to-head on regulation, fees, liquidity, and usability. Which one wins depends on where you live and how you fund.
- How to Actually Make Money on Prediction Markets
Edge, bankroll, process. The unglamorous habits that separate winning traders from gamblers.
- Prediction Markets and Taxes (US) — 2026 Guide
How Kalshi and Polymarket winnings are taxed, what forms to expect, and how to keep records the IRS will accept.
- How to Bet on Polymarket: A Complete Tutorial
Step-by-step: sign up, fund with USDC, place your first trade, and cash out. The full Polymarket walkthrough for US traders.
- How to Deposit on Polymarket (USDC Guide)
Three ways to fund a Polymarket account with USDC — debit card, bank transfer via Coinbase, or wallet bridge. Fees, speed, and gotchas.
- How to Withdraw From Polymarket
Pull your USDC off Polymarket and convert it back to US dollars. Wallet flow, fees, timing, and tax record-keeping.
- Polymarket 2026 World Cup: Results & What Traders Learned
How Polymarket's 2026 FIFA World Cup markets — more than $200M traded in total — priced the tournament, where it was right, where it missed, and the lessons for the next big sports market.
- How to Bet on the Super Bowl on Polymarket
Polymarket's Super Bowl markets explained — contract types, pricing in cents, MVP and prop books, and how they compare with Kalshi.
- Polymarket Oscars Betting Guide
How Oscars markets work on Polymarket, why the prices move fastest on precursor-award news, and which categories give traders the best edge.
- Polymarket Trading Strategies That Actually Work
Five repeatable edges on Polymarket — liquidity timing, news lag, correlated markets, settlement arbitrage, and bankroll math.
- What Is Polymarket? A Plain-English Explainer
Polymarket is one of the world's two largest prediction markets — a CFTC-licensed exchange where you trade YES/NO contracts on real-world events for USDC.
- Polymarket Alternatives: The Best Sites Like Polymarket in 2026
Five legitimate Polymarket alternatives for US traders — Kalshi, Rebet, OG, and more — ranked by fees, liquidity, and legality.
- Apps Like Kalshi: 6 Prediction Market Apps Worth Trying in 2026
The best apps similar to Kalshi for US traders — from Polymarket to Rebet to OG — compared on legality, fees, and mobile experience.
- How Do Prediction Markets Work? A Complete Guide
Prediction markets aggregate the wisdom of crowds into probabilities — here's the mechanics, the math, and the evidence they actually work.
- Election Betting Odds Explained: How to Read & Where to Trade
How to read election betting odds on prediction markets, convert prices into probabilities, and trade them legally in the US.
- Are Prediction Markets Gambling? The Legal & Practical Answer
Are prediction markets gambling or trading? The legal answer in 2026 — and what it means for you in practice.
- Sports Prediction Markets: The Complete 2026 Guide
How sports prediction markets work, what trading them actually costs, and where to trade them legally in the US.
- How to Bet on the Presidential Election (Legally, in 2028)
Step-by-step: how to legally bet on the 2028 US presidential election in 2026 using CFTC-regulated prediction markets.
- Polymarket NFL Betting: How It Works in 2026
Polymarket's NFL markets explained — game winners, season win totals, Super Bowl futures, and how exchange pricing in cents works.
- Kalshi NFL Markets: The US-Regulated Way to Trade Football
Kalshi lists CFTC-regulated NFL contracts in 47 states + DC. Fees, market types, and how they compare with Polymarket.
- 2026 Midterm Elections Betting Odds & How to Trade Them
House and Senate control markets on Kalshi and Polymarket — how the contracts settle, where the liquidity is, and how to place a legal trade.
Recent news
- Politics · Apr 10 · 3:06 AMPolymarket: Democratic Presidential Nominee 2028
- Politics · Apr 10 · 1:06 AMPolymarket: Republican Presidential Nominee 2028
- Industry · Apr 9Kalshi Posts Record $41.1B Monthly Volume in July 2026
- Industry · Apr 6Rebet Crosses 1M Users as Social Prediction Trading Goes Mainstream