How FanDuel built a 50% market share in US sports betting

Executive overview

Online sports betting was illegal in the US until 2018. Within five years, FanDuel captured nearly half the market in a projected $40 billion industry. Amy Howe, CEO of FanDuel, explains how the company turned a daily fantasy brand into the dominant mobile sports betting platform.

Superior product retention, disciplined marketing spend, and a pre-existing fantasy sports user base created compounding moats. The Super Bowl is FanDuel's single biggest moment — and its most visible test of brand, product, and risk management in one.

The house doesn't always win, and FanDuel doesn't want it to — sustainable consumer businesses require customers to win too.

Why FanDuel leads the market

• Pre-PASPA fantasy sports brand gave FanDuel instant recognition when legalization began
• Customer acquisition is significantly more efficient than competitors
• Nearly 80% year-over-year retention — a sign of product quality, not just marketing
• Structural margin advantage: FanDuel prices many markets in-house rather than outsourcing
• First-mover advantage in new states matters; late entrants face entrenched users
• In Ohio, ~70% of existing daily fantasy users converted to sports betting on day one

The Super Bowl as strategic platform

• FanDuel treats the Super Bowl as a full-year planning cycle — preparation starts immediately after each one
• Bet volume grew from 4 million (2021) to 8 million (2022) as more states legalized
• Arizona's 2023 Super Bowl was the first in a legal betting state — fans could bet inside the stadium
• Rob Gronkowski field goal activation aimed to be part of the game, not just an ad — generated over 1 billion impressions
• FanDuel TV broadcast on-site alongside traditional networks

How betting is reshaping sports fandom

• Over 70–80% of Super Bowl bets are on player props, not the final score
• Prop bets keep fans invested even in blowout games
• Bettors often wager on what they want to happen, not what's rational — high-scoring parlays dominate
• FanDuel positions itself as an entertainment platform, not just a sportsbook

Managing risk and responsible gaming

• FanDuel's risk and trading team uses sophisticated models plus human judgment to set odds
• Target: 75% of customers using at least one responsible gaming tool by 2030
• Craig Carton, a public figure with documented gambling challenges, serves as responsible gaming ambassador
• FanDuel partners with the NFL on a voluntary code of conduct that exceeds regulatory requirements
• Suspicious betting activity is shared with leagues — and transparently shared across competitors
• Only 21+ users in legalized states can bet; offshore illegal operators have no such standards

Sports portfolio strategy

• NFL: primary acquisition moment; highest per-game excitement and new-user conversion
• NBA: high handle due to volume of games across the season
• Niche sports (golf, tennis): smaller base but attract broad audiences around marquee events
• Each sport plays a different role; no single playbook applies across all leagues
• Regulatory complexity varies by league, requiring differentiated management per sport

Competitive dynamics and market outlook

• FanDuel held 42–50%+ market share in 2022; DraftKings is its closest competitor at roughly half that size
• ~60 online sports betting operators exist today; over 50 have single-digit share
• Consolidation expected: two or three scale players will dominate at maturity
• New entrants like Fanatics face the challenge of converting customers already loyal to established platforms
• California, Florida, and Texas — the three largest states — remain illegal for sports betting
• FanDuel and competitors collaborate on industry trust-building because more legal states benefit everyone